I am thrilled to announce the culmination of a journey spanning more than 30 years. The quest to extend the pore size of zeolites beyond the conventional 12-membered ring, with pore openings slightly larger than 0.7 nm, began in the 1980s. While aluminophosphates and ordered mesoporous silica materials with larger pores were developed, they could not match the robustness and strong acidity of aluminosilicate zeolites.

Today, we report the synthesis of the first intrinsically mesoporous aluminosilicate zeolite, ZMQ-1. This groundbreaking material features 28-membered ring pore channels (2.3 x 1.2 nm) interconnected by 10-membered rings. With a tunable Si/Al ratio (15–100), exceptional (hydro)thermal stability (up to 800°C), a substantial pore volume (0.47 cm³/g), and a high specific surface area (1447 m²/g), ZMQ-1 represents a significant advancement.
ZMQ-1 is the inaugural member of a new class of zeolitic materials, opening new horizons for process industries thanks to its intrinsic mesoporosity, robust framework, and inherent acidity. This discovery not only redefines the potential of zeolitic materials but also inspires the development of other stable mesoporous zeolites.

Nature 2024, 636, 368-373; DOI: https://doi.org/10.1038/s41586-024-08206-1
https://lnkd.in/d7xkv_9U (Impression: 40375)

Research Interests

Valentin Valtchev is the leader of zeolite team at the Laboratory of Catalysis and Spectrochemistry (LCS). His research involves the synthesis and modification of zeolites and other porous solids that can be used for catalysis, separation, and molecular recognition.

• Extra-large pore zeolites
• Synthesis and characterization of crystalline microporous materials
• Mechanism of zeolite formation
• Nanosized microporous materials (< 100 nm)
• Post-synthesis modifications of zeolites
• Zeolite-containing composite materials
• Covalent organic frameworks
• Porous carbons
• Gas hydrates for CH₄, H₂, CO₂ storage and separation

Short CV

Habilitation 2001 – University of Haute Alsace, France

Habilitation 1996 – Bulgarian Academy of Sciences, Bulgaria

Ph.D. 1991 – Institute of Applied Mineralogy, Bulgarian Academy of Sciences, Bulgaria

M. Sc. 1985 – University of Sofia, Bulgaria

Research Positions

2022 – now: Distinguished Research Professor (DRCE CNRS), Caen, France

2013 – 2022: Research Professor (DR1 CNRS), Caen, France

2019 – now: Visiting Professor, China Academy of Sciences (QIBEBT), China

2014 – 2019: Visiting Professor, Jilin University, China

2006 – 2013: Research Director (DR2 CNRS), Mulhouse, France

2000 – 2006: Research Associate (CR1 CNRS), Mulhouse, France

1996 – 2000: Associate Professor, Bulgaria Academy of Sciences, Sofia, Bulgaria

1991 – 1996: Research Associate, Bulgarian Academy of Sciences, Sofia, Bulgaria

Research interests

• Extra-large pore zeolites
• Synthesis and characterization of microporous materials
• Mechanism of zeolite formation
• Nanosized microporous materials preparation (< 100 nm)
• Structure – properties relationship in zeolites
• Synthesis and modification of COF materials
• Clathrates synthesis and their use for gas storage and separation (H₂, CH₄, CO₂, …)

Scientific activities

Papers > 350, Patents 27, Book chapters 8, Book edition 6

More than 60 plenary and keynote lectures including at the most important events in the field of nanoporous materials

h-index 83 (Citations: >24400) Google Scholar

h-index 73 (Citations: > 19900) Science Direct

Honors

2025 – Honorary Member of French Zeolite Association

2022- Ambassador of International Zeolite Association – this is the IZA award for all carrier   achievements. The recipient serves as ambassador for a period of three years (2022 – 2025)

2022- Chair of the “Breck committee” of the International Zeolite Association

2017- Honorary Professor of China University of Petroleum

2016- Elected President of the International Zeolite Association

2016- “Donald Breck” award, the highest recognition of the International Zeolite Association

2016- “La Recherche 2016: Chimie” award, France

2015- Manager of the International Zeolite Association web site

2014- “Baron fon Cronstedt” award, the highest recognition of the Federation of European Zeolite Associations

2014- “Thousand Talents” Professor, Jilin University, China

2011- paper selected amongst “Top 10 Breakthrough of the year” by the editors of Science

1991 – Bulgaria “Young inventor”

PhD(s)

Post Doctoral Researcher(s)

Engineer(s)

Current Projects

Publications in peer-reviewed journals 2019 – 2025

2025

Shiyu Wan, Guangying Fu, Dongyan Xu, Peng Lu, Valentin Valtchev 

Ultra-fine palladium‑gold alloy nanoclusters anchored on amino-grafted self-pillared pentasil zeolite for efficient dehydrogenation of formic acid

Chemical Engineering Journal, 2025, 522, 167734

DOI: 10.1016/j.cej.2025.167734

Rusi Rusew, Hristina Lazarova, Magdalena Angelova, Nevena Petkova-Yankova, Rositca Nikolova, Valentin Valtchev

Exploring the adsorptive properties of an embryonic zeolite toward methylene blue

Materials Advances, 2025, 6, 7942-7957

DOI: 10.1039/D5MA00944H 

Eric Breynaert, Dries Vandenabeele, Wenfu Yan, Valentin Valtchev, Bert Sels, Veronique Van Speybroeck, Christine Kirschhock

A reflection on ‘Flexibility versus rigidity: what determines the stability of zeolite frameworks? A case study’

Materials Horizons, 2025, 12, 8232-8239

DOI: 10.1039/D5MH90103K

Nourrdine Chaouati, Mohammad Fahda, Valentin Valtchev, Ludovic Pinard

On the coke-resisting behaviour of ZEO-1, an extra-large pore aluminosilicate zeolite

Journal of Catalysis, 2025, 116315

DOI: 10.1016/j.jcat.2025.116315

Haimei Xu, Chao Feng, Yunzhao Fan, Huawei Geng, Qisong Yi, Xiaoning Li, Yameng Fan, Yibo Ma, Baohua Jia, Yuanshuai Liu, Valentin Valtchev, Tianyi Ma

Strong metal-support interaction induced by Pt-O-Bi bonding in mesoporous anatase TiO₂ for base-free catalytic biomass valorisation

National Science Review, 2025, 12(10), nwaf 327

DOI: 10.1093/nsr/nwaf327

Phebe Lemaire, Arno de Reviere, Dhanjay Sharma, Valérie Ruaux, Jaouad Al Atrach, Valentin Valtchev, Joris Thybaut, Maarten Sabbe, An Verberckmoes

The Influence of Mesopore Architecture in Hierarchical H-ZSM-5 on n-Butanol Dehydration

ACS Engineering Au, 2025, 5(4), 434-449

DOI: 10.1021/acsengineeringau.5c00033

Loïc Eloi, Jeroen Poissonnier, Arne De Landsheere, Dhanjay Sharma, Jaouad Al Atrach, Valérie Ruaux, Valentin Valtchev, Maarten K Sabbe, Joris W Thybaut, An Verberckmoes

Direct Conversion of 1,3-Butanediol to 1,3-Butadiene over ZSM-22 Catalysts: Influence of the Si/Al Ratio

Catalysts, 2025, 15(7), 655

DOI: 10.3390/catal15070655

Qisong Yi, Lu Lin, Huawei Geng, Shaohua Chen, Yuanchao Shao, Ping He, Zhifeng Liu, Haimei Xu, Tiehong Chen, Yuanshuai Liu, Valentin Valtchev

Benefits of H-ZSM-5 zeolite from fluoride-mediated acidic synthesis for liquid-phase conversion of cyclohexanol

Chinese Journal of Catalysis, 2025, 74, 97-107

DOI: 10.1016/S1872-2067(25)64718-8

Haorui Zheng, Hui Li, Jie Ji, Fengqian Chen, Yiji Wang, Jinquan Suo, Jialong Song, Dan Zhao, Valentin Valtchev, Shilun Qiu, Qianrong Fang

Topological derivative strategy for large-pore three-dimensional covalent organic frameworks

Journal of the American Chemical Society, 2025, 147 (43), 39223–39231

DOI: 10.1021/jacs.5c10534

Jie Zhang, Haorui Zheng, Fengqian Chen, Zitao Wang, Hui Li, Fuxing Sun, Dan Zhao, Valentin Valtchev, Shilun Qiu, Qianrong Fang

High-Connectivity 3D Covalent Organic Frameworks with pdp Net for Efficient C₂H₂/CO₂ Separation

Angewandte Chemie International Edition, 2025, 64 (18), e202500161

DOI: 10.1002/anie.202500161

Haijun Yu, Wenjing Zhang, Yiqing Sun, Guangying Fu, Doudou Cai, Nourrdine Chaouati, Ludovic Pinard, Mohammad Fahda, Feng Shao, Peng Lu, Valentin Valtchev

Boosting the growth kinetics of extra-large-pore zeolite ZEO-1

Inorganic Chemistry Frontiers, 2025, 12, 6152-6165

DOI: 10.1039/D5QI00709G

Louwanda Lakiss, Houeida Issa Hamoud, Hugo Cruchade, Hristina Lazarova, Malak a   Qassab, Marie Desmurs, Mohamad El Roz, Valentin Valtchev, Jean-Pierre Gilson

Zeolite Catalysts for Hydrogen Harvesting from Polyethylene: A Sustainable Approach to Plastic Waste Upgrading

ChemCatChem, 2025, e202500592

DOI: 10.1002/cctc.202500592

Haonuan Zhao, Viktar Yasnou, Nikolay Nesterenko, Diogenes Honorato Piva, Louwanda Lakiss, Marie Lozier-Desmurs, Valentin Valtchev

Upscale synthesis and shaping of AlPO-18 sorbent for efficient atmospheric water harvesting

Separation and Purification Technology, 2025,  363, 132249

DOI: 10.1016/j.seppur.2025.132249

Ping He, Huawei Geng, Lin Li, Qisong Yi, Lu Lin, Zhifeng Liu, Yuanshuai Liu, Valentin Valtchev

Acidity-enhanced Al-MCM-41 synthesized by phase transformation of MWW-type zeolites for the liquid-phase alkylation of lignin-derived phenolic compounds

Journal of Catalysis, 2025, Volume 446, 116081

DOI: 10.1016/j.jcat.2025.116081

Haorui Zheng, Jie Ji, Yusran Yusran, Jianhong Chang, Fengqian Chen, Zitao Wang, Jinquan Suo, Jie Zhang, Hui Li, Dan Zhao, Valentin Valtchev, Shilun Qiu, Qianrong Fang

Three-Dimensional Covalent Organic Frameworks with jcg Topology Based on a Trinodal Strategy

Journal of the American Chemical Society, 2025, 147(16),13667-13676

DOI: 10.1021/jacs.5c00961

Oliwia Rogala, Karolina A Tarach, Louwanda Lakiss, Agata Kordek, Valentin Valtchev, Jean-Pierre Gilson, Kinga Góra-Marek

Shaped zeolites Y for polypropylene cracking

Applied Catalysis B: Environment and Energy, 2025, 365,124893

DOI: 10.1016/j.apcatb.2024.124893

Jaouad Al Atrach, Abdelhafid Aitblal, Abdallah Amedlous, Edwin B Clatworthy, Diógenes Honorato Piva, Ying Xiong, Rémy Guillet-Nicolas, Valentin Valtchev

Exploring a Novel Adsorbent for CO2 Capture and Gas Separation

ACS Applied Materials & Interfaces, 2025, 17(4), 7119-7130

DOI: 10.1021/acsami.4c18745

Eddy Dib, Qiudi Yue, Giorgia Confalonieri, Davide Salusso, Georgi N Vayssilov, Mathias Barreau, Stoyan P Gramatikov, Rossella Arletti, Francesco Dalena, Kirill A Lomachenko, Diogenes Honorato Piva, Valentin Valtchev, Zhengxing Qin, Zi-Feng Yan, Xionghou Gao, Franck Fayon, Spyridon Zafeiratos, Oleg I Lebedev, Svetlana Mintova

Germanium Atoms Exceed the Tetrahedral Coordination in MFI Zeolite

Journal of the American Chemical Society, 2025, 147 (4), 3274–3282

DOI: 10.1021/jacs.4c13278

Jun Zhao, Zhaopeng Liu, Dehui Wang, Lei Zhao, Diandian Shi, Zhiyu He, Feng Shao, Peng Lu, Valentin Valtchev

Atomically dispersed zinc sites confined in a layered silicalite-2 zeolite with enhanced stability for propane dehydrogenation

Microporous and Mesoporous Materials, 2025, 386, Volume 386, 15 March 2025, 113503

DOI: 10.1016/j.micromeso.2025.113503

Jianhong Chang, Zeyue Zhang, Haorui Zheng, Hui Li, Jinquan Suo, Chunqing Ji, Fenqian Chen, Shipeng Zhang, Zitao Wang, Valentin Valtchev, Shilun Qiu, Junliang Sun, Qianrong Fang

Synthesis of three-dimensional covalent organic frameworks through a symmetry reduction strategy

Nature Chemistry, 2025, 17, 571-581

DOI: 10.1038/s41557-024-01715-6

Shaolei Gao, Peng Lu, Liang Qi, Yingli Wang, Hua Li, Mao Ye, Valentin Valtchev, Alexis T. Bell, Zhongmin Liu

Dimethoxymethane carbonylation and disproportionation over extra-large pore zeolite ZEO-1: Reaction network and mechanism

Chinese Journal of Catalysis, 2025, 68, 230-245

DOI: 10.1016/S1872-2067(24)60187-7

Jun Zhao, Hai-Jun Yu, Haimei Xu, Zhiyu He, Feng Shao, Peng Lu, Valentin Valtchev

Empowering catalysis and separation : morphology control of MFI zeolites using organic additives

Sustainable Energy & Fuels, 2025, 9, 323-332

DOI: 10.1039/D4SE01514B

2024

Peng Lu, Jiaoyan Xu, Yiqing Sun, Rémy Guillet-Nicolas, Tom Willhammar, Mohammad Fahda, Eddy Dib, Bo Wang, Zhengxing Qin, Hongyi Xu, Jung Cho, Zhaopeng Liu, Haijun Yu, Xiaobo Yang, Qiaolin Lang, Svetlana Mintova, Xiaodong Zou, Valentin Valtchev

A stable zeolite with atomically ordered and interconnected mesopore channel

Nature, 2024

DOI: https://doi.org/10.1038/s41586-024-08206-1

Jun Zhao, Haijun Yu, Haimei Xu, Zhiyu He, Feng Shao, Peng Lu, and Valentin Valtchev

Enpowering catalysis and separation: morphology control of MFI zeolites using organic additives

Sustainable Energy & Fuels, 2024

DOI: https://doi.org/10.1039/D4SE01514B

Ligxue Tang, Kok-Giap Haw, Diandian Shi, Yuming Guo, Qianrong Fang, Shilun Qiu, Valentin Valtchev

Embryonic zeolite-directed synthesis of ZSM-34 and SSZ-13 zeolites

Green Carbon, 2024

DOI: https://doi.org/10.1016/j.greenca.2024.04.002

Jiali Li, Jinkai Zhang, Yuxin Hou, Jinquan Suo, Jianchuan Liu, Hui Li, Shilun Qiu, Valentin Valtchev, Qianrong Fang, Xiaoming Liu

High-Performance Polyimide Covalent Organic Frameworks for Lithium-Ion Batteries: Exceptional Stability and Capacity Retention at High Current Densities

Angewandte Chemie International Edition, 2024

DOI: https://doi.org/10.1002/anie.202412452

Mohammad Fahda, Jawad Fayek, Eddy Diba, Hugo Cruchadea, Nathan Pichota, Nourrdine Chaouati, Ludovic Pinard, Petko St. Petkov, Georgi N. Vayssilov, Alvaro Mayorald, Bernhard Witulski, Louwanda Lakiss,  Valentin Valtchev

Investigating the physicochemical properties of an extra-large pore aluminosilicate ZEO-1

Chem. Mater. 2024, 36, 11, 5405-5421

DOI: https://doi.org/10.1021/acs.chemmater.4c00186

Rui Wang, Ziqi Zhang, Haiping Zhou, Mingrui Yu, Dr. Li Liao, Yan Wang, Sheng Wan, Prof. Haiyan Lu, Prof. Wei Xing, Prof. Valentin Valtchev, Prof. Shilun Qiu, Prof. Qianrong Fang

Structural Modulation of Covalent Organic Frameworks for Efficient Hydrogen Peroxide Electrocatalysis

Angew. Chem., 2024

DOI: https://doi.org/10.1002/anie.202410417

Al Atrach; A. Aitblal; A. Amedlous; Y. Xiong; M. Desmurs; V. Ruaux; R. Guillet-Nicolas; V. Valtchev

Nanosized Zeolite P for Enhanced CO2 Adsorption Kinetics

ACS Applied Materials & Interfaces, 2024, 16, 29, 38006–38016

DOI: https://doi.org/10.1021/acsami.4c05988

Arno de Reviere, Jean-Pierre Gilson, Valentin Valtchev, Joris W. Thybaut, Maarten K. Sabbe, An Verberckmoes

Enhancing the catalytic performance of H-ZSM-5 in bio n-butanol dehydration by zeolite crystal engineering

Applied Catalysis B: Environment and Energy, 2024

DOI: https://doi.org/10.1016/j.apcatb.2024.124351

Yunchao Ma,   Yuhang Han,   Yuxin Yao,   Tianyu Zhou,   Dongshu Sun,   Chunbo Liu,   Guangbo Che,   Bo Hu,   Valentin Valtchev,  Qianrong Fang 

Cobalt-modified covalent organic framework enables highly efficient degradation of 2,4-dichlorophenol in high concentrations through peroxymonosulfate activation

Chemical Science, 2024,

DOI: https://doi-org.inc.bib.cnrs.fr/10.1039/D4SC02462A

Jing Fang, Xihan Yu, Yaozu Liu, Yusran Yusran, Yujie Wang, Valentin Valtchev, Shilun Qiu, Bo Zou, Qianrong Fang

Piezofluorochromism in Covalent Organic Frameworks: Pressure-induced Emission Enhancement and Blue-Shifted Emission

Angewandte Chemie, 2024

DOI: https://doi.org/10.1002/anie.202409099

Rui Wang, Ziqi Zhang, Haiping Zhou, Mingrui Yu, Li Liao, Yan Wang, Sheng Wang, Haiyan Lu, Wei Xing, Valentin Valtchev, Shilun Qiu, Qianrong Fang

Structural Modulation of Covalent Organic Frameworks for Efficient Hydrogen Peroxide Electrocatalysis

Angewandte Chemie, 2024

DOI: https://doi.org/10.1002/anie.202410417

Haonuan Zhao, Xiaobo Yang, Rémy Guillet-Nicolas, Viktar Yasnou, Valentin Valtchev

Evaluating different types of microporous materials for energy-saving atmospheric water harvest

Microporous and Mesoporous Materials, 2024

DOI: https://doi.org/10.1016/j.micromeso.2024.113043

Nikola Jakupec, Karen J. Ardila-Fierro, Valentina Martinez, Ivan Halasz, Janez Volavšek, Gerardo Algara-Siller, Martin Etter, Valentin Valtchev, Krunoslav Užarević, Ana Palčić

Mechanochemically Induced OSDA-Free Interzeolite Conversion

ACS Sustainable Chemistry & Engineering, 2024

DOI: https://doi.org/10.1021/acssuschemeng.3c08477

Qiaolin Lang, Peng Lu, Xiaobo Yang, Valentin Valtchev

Zeolites for the environment

Green Carbon, 2024

DOI: https://doi.org/10.1016/j.greenca.2024.02.007

Shiyu Wan, Peng Lu, Dongyan Xu, Valentin Valtchev

Bimetallic PdAg clusters loaded on hierarchical self-pillared pentasil zeolite as efficient catalysts for formic acid dehydrogenation

Catalysis Communications, 2024

DOI: https://doi.org/10.1016/j.catcom.2024.106891

Ping He, Lin Li, Yuanchao Shao, Qisong Yi, Zhifeng Liu, Huawei Geng, Yuanshuai Liu, Valentin Valtchev

Recent Advances in Hydrodeoxygenation of Lignin-Derived Phenolics over Metal-Zeolite Bifunctional Catalysts

ChemCatChem, 2024

DOI: https://doi.org/10.1002/cctc.202301681

Rui Wang, Ziqi Zhang, Jinquan Suo, Li Liao, Leibo Li, Zhuochen Yu, Heng Zhang, Valentin Valtchev, Shilun Qiu, Qianrong Fang

Exploring metal-free ionic covalent organic framework nanosheets as efficient OER electrocatalysts via cationic-π interactions

Chemical Engineering Journal, 2024

DOI: https://doi.org/10.1016/j.cej.2023.147403

Zhao, X .Yang, R. Guillet-Nicolas, V. Yasnou, V. Valtchev

Evaluating different types of microporous materials for energy-saving atmospheric water harvest

Microporous and Mesoporous Materials 2024, 369, 113043

DOI: https://doi.org/10.1016/j.micromeso.2024.113043

Lingxue Tang; Kok-Giap Haw; Diandian Shi; Yuming Guo; Qianrong Fang; Shilun Qiu; Valentin Valtchev,

Embryonic zeolite-directed synthesis of ZSM-34 and SSZ-13 zeolites

Green Carbon, 2024,

DOI: https://doi.org/10.1016/j.greenca.2024.04.002

Pichot, J.W. Hounfodji, H. El Siblani, M. Badawi, V. Valtchev, S. Mintova, J.P. Gilson, A. Dufour, L. Pinard

Anisole disproportionation on HZSM-5: the key role of Si/Al ratio on auto-inhibition effect

Applied Catalysis A: General, 2024, 1, 15, 119565

DOI: https://doi.org/10.1016/j.apcata.2024.119565

Jaouad Al Atrach, Igor E. Golub, Edwin B. Clatworthy, Jérôme Rey, Ying Xiong, Ayoub Daoui, Marie Desmurs, Michael Badawi, Rémy Guillet-Nicolas, Valentin Valtchev

Mg-ExchangedGismondineforSuperiorCO2/N2andCO2/CH4Separations

Chemistry of Materials, 2024

DOI: https://doi.org/10.1021/acs.chemmater.3c02823

Jianhong Chang, Fengqian Chen, Hui Li, Jinquan Suo, Haorui Zheng, Jie Zhang, Zitao Wang, Liangkui Zhu, Valentin Valtchev, Shilun Qiu, Qianrong Fang

Three-dimensional covalent organic frameworks with nia nets for efficient separation of benzene/cyclohexane mixtures

Nature Communications, 2024, 15 (1), 813

DOI : https://doi.org/10.1038/s41467-024-45005-8

Mirosław Kwiatkowski, Ping He, Valentin Valtchev

Numerical analysis of the porous structure of spherical activated carbons obtained from ion-exchange resins

Scientific Reports (Nature portfolio), 2024, 14 (1), 102    

DOI: https://doi.org/10.1038/s41598-023-50682-4

Ahmed Omran, Nikolay Nesterenko, Valentin Valtchev

Driving Sustainable Energy Storage: A Multi-scale Investigation of Methane Hydrate Formation with Green Promoters and Innovative Reactor Design

Journal of Energy Storage, 2024, p. 109653

DOI: https://doi.org/10.1016/j.est.2023.109653

2023

Guangying Fu, Qiaolin Lang, Xiaolong Liu, Haonuan Zhao, Yiqing Sun, Lei Zhao, Ahmed Omran, Peng Lu, Xiaobo Yang, Bing Yu, Valentin Valtchev

Zeolitic germanosilicate analogue to pharmacosiderite crystallized in an acidic medium

Green Carbon, 2023, 1, 185-192

DOI: https://doi.org/10.1016/j.greenca.2023.11.003

Ayoub Daouli, Jérôme Rey, El Hassane Lahrar, Valentin Valtchev, Michael Badawi, Rémy Guillet-Nicolas

Ab Initio Screening of Divalent Cations for CH4, CO2, H2, and N2 Separations in Chabazite Zeolite

Langmuir, 2023, 39,445, 15962-15973

DOI: doi.org/10.1021/acs.langmuir.3c01882

Yiqing Sun, Qiaolin Lang, Guangying Fu, Haonuan Zhao, Eddy Dib, Xiaolong Liu, Xiaobo Yang, Peng Lu, Bing Yu, Valentin Valtchev

Highly hydrophobic zeolite ZSM-8 with perfect framework structure obtained in a strongly acidic medium

Microporous and Mesoporous Materials, 2023, 363, 112839

DOI: https://doi.org/10.1016/j.micromeso.2023.112839.

Haimei Xu, Peng Lu, Guangying Fu, Jifa Miao, Jiaqi Zhao, Ruiqin Ding, Lei Zhao, Zhirong Lang, Xiaobo Yang, Valentin Valtchev

The strong SDA/framework interactions and acidity study of high-silica LTA-type zeolites

Microporous and Mesoporous Materials, 2023, 360, 112724.

DOI: https://doi.org/10.1016/j.micromeso.2023.112724

Jianchuan Liu, Jie Zhao, Cuiyan Li, Yaozu Liu, Daohao Li, Hui Li, Valentin Valtchev, Shilun Qiu, Yujie Wang, Qianrong Fang

Precise Modulation of Carbon Activity Sites in Metal‐Free Covalent Organic Frameworks for Enhanced Oxygen Reduction Electrocatalysis

Small, 2023: 2305759

DOI: https://doi.org/10.1002/smll.202305759

N Pichot, JW Hounfodji, M Badawi, V Valtchev, S Mintova, J-P Gilson, A Dufour, L Pinard

Products and coke shape-selectivity during anisole disproportionation over HZSM-5

Applied Catalysis A: General, 2023, 665, 119352

DOI: https://doi.org/10.1016/j.apcata.2023.119352.

Vera Bikbaeva, Nikolay Nesterenko, Nuria García-Moncada, Valentin Valtchev

Co-promoted Mo-carbide catalytic system for sustainable manufacturing of chemicals via co-processing of CO₂ with ethane

Green Carbon, 2023, 1, 94-103.

DOI: https://doi.org/10.1016/j.greenca.2023.09.001

Antoine Beuque, Valentin Valtchev, Svetlana Mintova, Jean-Pierre Gilson, Ludovic Pinard

Identification of reversible and irreversible deactivation of MDA catalysts: a key to design a viable process

Journal of Catalysis, 2023, 426, 39-51.

DOI: https://doi.org/10.1016/j.jcat.2023.06.034

Yaozu Liu, Jingwei Li, Jia Lv, Zitao Wang, Jinquan Suo, Junxia Ren, Jianchuan Liu, Dong Liu, Yujie Wang, Valentin Valtchev, Shilun Qiu, Daliang Zhang, Qianrong Fang

Topological Isomerism in Three-Dimensional Covalent Organic Frameworks

9685. Am. Chem. Soc., 2023, 145, 9679-9685.

DOI: https://doi.org/10.1021/jacs.3c01070

Mohammad Fahda, Louwanda Lakiss, Kamila Goldyn, Edwin Clatworthy, Marie Desmurs, Jean-Pierre Gilson, Svetlana Mintova, Valentin Valtchev

Mono-directional pressure-induced downsizing of zeolite crystals increases their catalytic performances

Inorganic Chemistry Frontiers, 2023, 10, 4719-4724.

DOI: https://doi.org/10.1039/D3QI01006F

Jiali Li, Ji Jia, Jinquan Suo, Cuiyan Li, Zhiwei Wang, Hui Li, Valentin Valtchev, Shilun Qiu, Xiaoming Liu, Qianrong Fang

Metal-Free Covalent Organic Frameworks Containing Precise Heteroatoms forEfficient Oxygen Reduction Reaction

Mater. Chem. A, 2023,11, 18349-18355

DOI: https://doi-org.inc.bib.cnrs.fr/10.1039/D3TA03534D

Karolina A. Tarach, Mariame Akouche, Kamila Pyra, Valentin Valtchev, Gabriela Jajko, Jean-Pierre Gilson, Kinga Góra-Marek

Polypropylene cracking on embryonic and ZSM-5 catalysts – An operando study

Applied Catalysis B: Environmental, 2023, 334, 122871

DOI: https://doi.org/10.1016/j.apcatb.2023.122871

Jing Fang, Zhiyuan Fu, Xiaohong Chen, Yaozu Liu, Fengqian Chen, Yujie Wang, Hui Li, Yusran Yusran, Kai Wang, Valentin Valtchev, Shilun Qiu, Bo Zou, Qianrong Fang

Piezochromism in Dynamic Three-Dimensional Covalent Organic Frameworks

Angewandte Chemie, 2023: e202304234

DOI: https://doi.org/10.1002/anie.202304234

Jianhong Chang, Cuiyan Li, Xiaoxia Wang, Daohao Li, Jie Zhang, Xiaoming Yu, Hui Li, Xiangdong Yao, Valentin Valtchev, Shilun Qiu, Qianrong Fang

Quasi-Three-Dimensional Cyclotriphosphazene-Based Covalent Organic Framework Nanosheet for Efficient Oxygen Reduction

Nano-Micro Letters, 2023, 15, 159

DOI: https://doi.org/10.1007/s40820-023-01111-8

Baoju Li, Zitao Wang, Zhuangzhuang Gao, Jinquan Suo, Ming Xue, Yushan Yan, Valentin Valtchev, Shilun Qiu, Qianrong Fang

Self-Standing Covalent Organic Framework Membranes for H2/CO2 Separation

Advanced Functional Materials, 2023

DOI: https://doi.org/10.1002/adfm.202300219

Vera Bikbaeva, Nikolay Nesterenko, Stanislav Konnov, Thanh-Son Nguyen, Jean-Pierre Gilson, Valentin Valtchev

A Low Carbon Route to Ethylene: Ethane Oxidative Dehydrogenation with CO2 on  Embryonic Zeolite Supported Mo-Carbide Catalyst

Applied Catalysis B: Environmental, 2023, 320, 122011

DOI: doi.org/10.1016/j.apcatb.2022.122011

Valentin Valtchev, Jean-Pierre Gilson, Jeffrey D. Rimer, Jonathan W. Steed

Zeolite Crystal Engineering

Crystal Growth & Design, 2023, 23, 11, 7555–7557

DOI: https://doi.org/10.1021/acs.cgd.3c01015

2022

Li Liao, Zerong Zhang, Xinyu Guan, Hui Li, Yaozu Liu, Minghao Zhang, Bin Tang, Valentin Valtchev, Yushan Yan, Shilun Qiu, Xiangdong Yao, Qianrong Fang

Three‐Dimensional sp2 Carbon‐Linked Covalent Organic Frameworks as a Drug Carrier Combined with Fluorescence Imaging

Chinese Journal of Chemistry, 2022, 40, 2081-2088.

DOI: https://doi.org/10.1002/cjoc.202200194

Zhengxing Qin, Bo Wang, Natsuko Asano, Lijuan Wang, Yan Zhou, Xinmei Liu, Baojian Shen, Svetlana Mintova, Shunsuke Asahina, Valentin Valtchev

Towards a comprehensive understanding of mesoporosity in zeolite Y at the single particle level

Inorganic Chemistry Frontiers, 2022, 9, 2365-2373.

DOI: https://doi.org/10.1039/D2QI00313A

Francisco Rodrigues, Thomas Georgelin, Baptiste Rigaud, Guanzheng Zhuang, Maria Gardennia Fonseca, Valentin Valtchev, Maguy Jaber

Deadlocks of adenine ribonucleotide synthesis: evaluation of adsorption and condensation reactions in a zeolite micropore space

Inorganic Chemistry Frontiers, 2022, 9, 4111-4120.

DOI: https://doi.org/10.1039/D2QI00837H

Stanislav V. Konnov, Izabel C. Medeiros-Costa, Hugo Cruchade, Florent Dubray, Maxime Debost, Jean-Pierre Gilson, Valentin Valtchev, Jean-Pierre Dath, Nikolai Nesterenko, Svetlana Mintova

Formulation of two monofunctional catalysts for CH₄ upgrading

Appl. Catal. A, 2022, 664, 118814.

DOI: 10.1016/j.apcata.2022.118814

Ping He; Qisong Yi; Huawei Geng; Yuanchao Shao; Meng Liu; Zhijie Wu; Wenhao Luo; Yuanshuai Liu; Valentin Valtchev

Boosting the Catalytic Activity and Stability of Ru Metal Clusters in Hydrodeoxygenation of Guaiacol through MWW Zeolite Pore Constraints

ACS Catalysis, 2022, 12, 14717-14726.

DOI: 10.1021/acscatal.2c04597

Diandian Shi, Guangying Fu, Ahmed Omran, Kok-Giap Haw, Liangkui Zhu, Ruiqin Ding, Qiaolin Lang, Songxia Wang, Qianrong Fang, Shilun Qiu, Xiaobo Yang, Valentin Valtchev 

Acidic properties of Al-rich ZSM-5 crystallized in strongly acidic fluoride medium

Micropor. Mesopor. Mater. 2022, 112332.

DOI: 10.1016/j.micromeso.2022.112332

Ruiqin Ding, Guangying Fu, Songxia Wang, Yang Yang, Qiaolin Lang, Haonuan Zhao, Xiaobo Yang, Valentin Valtchev

The Activity of Ultrafine Cu Clusters Encapsulated in Nano-Zeolite for Selective Hydrogenation of CO₂ to Methanol

Catalysts 2022, 12, 1296.

DOI: doi.org/10.3390/catal12111296

Liu, Y. Z.; Chen, P. H.; Wang, Y. J.; Suo, J. Q.; Ding, J. H.; Zhu, L. K.; Valtchev, V.;     Yan, Y. S. Qiu, S. L.; Sun, J. L., Fang, Q. R.,

Design and Synthesis of a Zeolitic Organic Framework

Angewandte Chemie, 2022, 61, e202203584

DOI: https://doi.org/10.1002/anie.202203584

Vera Bikbaeva, Olivier Perez, Nikolay Nesterenko, Valentin Valtchev

Ethane Oxidative Dehydrogenation with CO2 on thiogallates

Inorganic Chemistry Frontiers, 2022, 9, 5181-5187.

DOI: https://doi.org/10.1039/d2qi01630c

Ahmed Omran, Nikolay Nesterenko, Arnold A. Paecklar, Nicolas Barrier, Valentin Valtchev

Toward Economical Seawater-Based Methane Hydrate Formation at Ambient Temperature: A Combined Experimental and Computational Study

ACS Sustainable Chemistry & Engineering, 2022, 10, 35, 11617–11626.

DOI: https://doi.org/10.1021/acssuschemeng.2c03530

Ahmed Omran, Nikolay Nesterenko, Valentin Valtchev

Zeolitic ice: A Route Toward Net Zero Emissions

Renewable and Sustainable Energy Reviews, 2022, 168, 112768.

DOI: 10.1016/j.rser.2022.112768 (Review paper)

Guangying Fu, Eddy Dib, Qiaolin Lang, Haonuan Zhao, Songxia Wang, Ruiqin Ding, Xiaobo Yang, Valentin Valtchev

Acidic medium synthesis of zeolites – an avenue to control the structure-directing power of the organic template

Dalton Transactions, 2022, 51, 11499-11506

DOI: 10.1039/D2DT01554D (Advanced Article)

Ahmed Omran, Nikolay Nesterenko, Valentin Valtchev

Revealing Zeolites Active Sites Role as Kinetic Hydrate Promoters: Combined Computational and Experimental Study

ACS Sustainable Chemistry & Engineering, 2022, 24, 8002–8010

DOI: 10.1021/acssuschemeng.2c01742

Liao, Z. Zhang, X. Guan, H. Li, Y. Liu, M. Zhang, B. Tang, V. Valtchev, Y. Yan, S. Qiu, X. Yao, Xiangdong, Q. Fang

Three-Dimensional sp2 Carbon-Linked Covalent Organic Frameworks as a Drug Carrier Combined with Fluorescence Imaging »

Chinese Journal of Chemistry 2022, 40, 2081-2088

DOI: https://doi.org/10.1002/cjoc.202200194

Houeida Issa Hamoud, Fatima Douma, Mama Lafjah, Fatiha Djafri, Oleg Lebedev, Valentin Valtchev, Mohamad El-Roz

Size-Dependent Photocatalytic Activity of Silver Nanoparticles Embedded in ZX-Bi Zeolite Supports

ACS Applied Nano Materials, 2022, 5, 3866–3877

DOI: 10.1021/acsanm.1c04484

Xiuqin Yu, Jianhong Chang, Yujie Wang, Weifeng Xia, Jinquan Suo, Xinyu Guan, Valentin Valtchev, Yushan Yan, Shilun Qiu, Qianrong Fang

Gating Effects for Ion Transport in Three-dimensional Functionalized Covalent Organic Frameworks

Angewandte Chemie, 2022, 61 (13), e202200820

DOI: https://doi.org/10.1002/ange.202200820

Zhengxing Qin, Zhenchao You, Krassimir N. Bozhilov, Stefan K. Kolev, Wei Yang, Yanfeng Shen, Xin Jin, Jean-Pierre Gilson, Svetlana Mintova, Georgi N. Vayssilov, Valentin Valtchev

Dissolution behavior and varied mesoporosity of zeolites by NH4F etching

Chemistry – A European Journal, 2022, 28, e202104339.

DOI: https://doi.org/10.1002/chem.202104339

Haonuan Zhao, Qiaolin Lang, Guangying Fu, Ruiqin Ding, SongxiaWang, XiaoboYang, Valentin Valtchev

Hydrothermal crystallization of clathrasils in acidic medium: Energetic aspects

Micropor. Mesopor Mater. 2022, 333, 111728.

DOI: https://doi.org/10.1016/j.micromeso.2022.111728

Xiu-Mei Li, Zhi-Tao Wang, Valentin Valtchev, Ya-Ru Pan

Syntheses, Crystal Structures and NBO Calculation of Two New Zn(II)/Co(II) Coordination Polymers

1091. Clust. Sci. 2022, 33, 1083–1091.

DOI: 10.1007/s10876-021-02042-3

Viktoria Babić, Siddardha Koneti, Simona Moldovan, Maxime Debost, Jean-Pierre Gilson,ValentinValtchev

Chromic acid dealumination of zeolites

Micropor. Mesopor Mater. 2022, 329, 111513.

DOI: https://doi.org/10.1016/j.micromeso.2021.111513

XiaoboYang, Eddy Dib, Qiaolin Lang, Hailing Guo, Guangying Fua, Juan Wang, Qisong Yi, Haonuan Zhao, Valentin Valtchev

Silicalite-1 formation in acidic medium: Synthesis conditions and physicochemical properties

Micropor. Mesopor Mater. 2022, 329, 111537.

DOI: https://doi.org/10.1016/j.micromeso.2021.111537

Ana Palčić, Simona Moldovan, Hussein El Siblani, Aurelie Vicente, and Valentin Valtchev

Defect sites in zeolites: origin and healing

Advanced Science 2022, 9, 2104414

DOI: 10.1002/advs.202104414

Chengyang Yu, Hui Li, Yujie Wang, Jinqun Suo, Dr. Xinyu Guan, Rui Wang, Valentin Valtchev, Yushan Yan, Shilun Qiu, Qianrong Fang

Three-Dimensional Triptycene-Functionalized Covalent Organic Frameworks with hea net for Hydrogen Adsorption

Angewandte Chemie, 2022, 61, e202117101.

DOI: https://doi.org/10.1002/anie.202117101

Ahmed Omran, Nikolai Nesterenko, Valentin Valtchev

Ab initio Mechanistic Insights into the Stability, Diffusion and Storage Capacity of sI Clathrate Hydrate Containing Hydrogen

International Journal of Hydrogen Energy, 2022, 47, 8419-8433.

DOI: 10.1016/j.ijhydene.2021.12.186

Naonobu Katada, Kana Yamamoto, Moeri Fukui, Kai Asanuma, Satoshi Inagaki, Kazuki Nakajima, Satoshi Suganuma, Etsushi Tsuji, Ana Palcic, Valentin Valtchev, Petko St. Petkov, Kristina Simeonova, Georgi N. Vayssilov, Yoshihiro Kubota

Acidic property of YNU-5 zeolite influenced by its unique micropore system

Micropor. Mesopor. Mater. 2022, 330, 111592.

DOI: 10.1016/j.micromeso.2021.111592

2021

Qiaolin Lang, Guangying Fu, Haonuan Zhao, Juan Wang, Xiaobo Yang, Valentin Valtchev

Biomineralization at a molecular level: Aminoacid-assisted crystallization of zeotype AlPO41.5H2O-H3 (APC)

Crystal Growth and Design, 2021, 21, 7298–7305.

DOI: 10.1021/acs.cgd.1c01160

Louwanda Lakiss, Cassandre Kouvatas, Jean-Pierre Gilson, Hristiyan A. Aleksandrov, Georgi N. Vayssilov, Nikolai Nesterenko, Svetlana Mintova, Valentin Valtchev

Unlocking the Potential of Hidden Sites in Faujasite: New Insights in a Proton Transfer Mechanism

Angewandte Chemie, 2021, 60 (51) 26702-26709

DOI: org/10.1002/anie.202110107

Wenjuan Zhao, Chengyang Yu, Fengqian Che, Xinyu Guan, Hui Li, Bin Tang, Valentin Valtchev, Yushan Yan, Shilun Qiu, Qianrong Fang

Three-Dimensional Hydrazone-Functionalized Covalent Organic Frameworks as pH-Triggered Rotary Switches

Small 2021, 17 (41), e2102630.

DOI: https://doi.org/10.1002/smll.202102630

Chen, F.; Guan, X.; Li, H.; Ding, J.; Zhu, L.; Tang, B.; Valtchev, V.; Yan, Y.; Qiu, S.; Fang, Q.

Three-Dimensional Radical Covalent Organic Frameworks as Highly Efficient and Stable Catalysts for Selective Oxidation of Alcohols

Angewandte Chemie, 2021, 60 (41), 22230-22235.

DOI: 10.1002/ange.202108357

Louwanda Lakiss, Cassandre Kouvatas, Jean-Pierre Gilson, Valentin Valtchev, Svetlana Mintova, Christian Fernandez, Robert Bedard, Suheil Abdo, and Jeffery Bricker

Atomic-Insight into Zeolite Catalyst Forming – an Advanced NMR Study

Phys. Chem. C 2021, 125, 36, 20028–20034

DOI: https://doi.org/10.1021/acs.jpcc.1c05501

Weijiong Dai, Valérie Ruaux, Xin Deng, Wenshu Tai, Guangjun Wu, Naijia Guan,   Landong Li, Valentin Valtchev

Synthesis and catalytic application of nanorod-like FER-type zeolite

24931. Mater. Chem. A 2021, 9, 24922 – 24931.

DOI: 10.1039/D1TA06596C

Etienne P. Hessou, Lucie A. Bédé, Hicham Jabraoui, Abderrahmane Semmeq, Michael Badawi,Valentin Valtchev

Adsorption of Toluene and Water over Cationic-Exchanged Y Zeolites: A DFT Exploration

Molecules 2021, 26(18), 5486.

DOI: 10.3390/molecules26185486

Hussein Awala, Shrikant M. Kunjir, Aurélie Vicente, Jean-Pierre Gilson, Valentin Valtchev, Hussein El Siblani, Richard Retoux, Louwanda Lakiss, Christian Fernandez, Robert Bedard, Suheil Abdo, Jeffery Bricker, Svetlana Mintova

Crystallization pathway from highly viscous colloidal suspension to ultra-small FAU zeolite nanocrystals

17501. Mater. Chem. A 2021, 9, 17492-17501.

DOI: https://doi.org/10.1039/D1TA02781F

Zhengxing Qin, Shu Zeng, Georgian Melinte, Tomas Bucko, Michael Badawi, Yanfeng Shen, Jean-Pierre Gilson, Ovidiu Ersen, Yingxu Wei, Zhongmin Liu, Xinmei Liu, Zifeng Yan, Shutao Xu, Valentin Valtchev, Svetlana Mintova

Understanding the Fundamentals of Microporosity Upgrading in Zeolites: Increasing Diffusion and Catalytic Performances

Advanced Science 2021, 2100001.

DOI: 10.1002/advs.202100001

Ana Palcic, Sara Navarro Jaen, Dan Wu, Mengdie Cai, Chong Liu, Evgeny A. Pidko, Andrei Y. Khodakov, Vitaly Ordomsky, Valentin Valtchev

Embryonic zeolites for highly efficient synthesis of dimethyl ether from syngas

Micropor. Mesopor. Mater. 2021, 111138.

DOI: 10.1016/j.micromeso.2021.111138

Fatima Douma, Louwanda Lakiss, Oleg I. Lebedev, Julien Cardin, Krassimir L. Kostov, Jaafar El Fallah, Valentin Valtchev, Mohamad El-Roz

Silver quasi-nanoparticles: bridging the gap between molecule-like clusters and plasmonic nanoparticles

Mater. Adv. 2021, 2, 5453-5464.

DOI: https://doi.org/10.1039/D1MA00382H

Krassimir N. Bozhilov, Thuy Thanh Le, Zhengxing Qin, Tanguy Terlier, Ana Palcic, Jeffrey D. Rimer, Valentin Valtchev

Time-resolved dissolution elucidates the mechanism of zeolite MFI crystallization

Science Advances 2021, 7, eabg0454.

DOI: 10.1126/sciadv.abg0454

Jianhong Chang, Hui Li, Xinyu Guan, Cuimei Li, Guangtao Yu, Valentin Valtchev, Yushan Yan, Shilun Qiu, Qianrong Fang

Tetrathiafulvalene-based covalent organic frameworks for ultrahigh iodine capture

Chem. Sci. 2021, 12, 8452-8457.

DOI: https://doi.org/10.1039/D1SC01742J

Hui Li, Fengqian Chen, Xinyu Guan, Jiali Li, Cuiyan Li, Bin Tang, Valentin Valtchev, Yushan Yan, Shilun Qiu, Qianrong Fang

Three-Dimensional Triptycene-Based Covalent Organic Frameworks with ceq or acs Topology

2659. Am. Chem. Soc. 2021, 143, 2654–2659.

DOI: 10.1021/jacs.0c12499

Viktoria Babić, Siddardha Koneti, Simona Moldovan, Nikolai Nesterenko, Jean-Pierre Gilson, Valentin Valtchev

Preparation of hierarchical SSZ-13 by NH₄F etching

Microporous Mesoporous Materials 2021, 314, 110863.

DOI: 10.1016/j.micromeso.2020.110863

Yiying Zhang, Hui Li, Jianhong Chang, Xinyu Guan, Lingxue Tang, Qianrong Fang, Valentin Valtchev, Yushan Yan, and Shilun Qiu

Three-Dimensional Thioether-Based Covalent Organic Frameworks for Selective and Efficient Mercury Removal

Small 2021, 17, 2006112.

DOI: 10.10002/small. 202006112

Ji Han, Guoju Yang, Yongcun Zou, Xiaoxin Chen, Valentin Valtchev

Hierarchical SAPO-34 preparation based on the crystal metastability in mother liquor solution

Advanced Materials Interfaces 2021, 2002029

DOI: doi.org/10.1002/admi.202002029

Weijiong Dai, Cassandre Kouvatas, Wenshu Tai, Guangjun Wu, Naijia Guan, Landong Li, Valentin Valtchev

Plate-like MFI Crystals with Controlled Crystal Faces Aspect Ratio

2004. Am. Chem. Soc. 2021, 143, 1993–2004.

DOI: 10.1021/jacs.0c11784

StijnVan Daele, Delphine Minoux, Nikolai Nesterenko, Sylvie Maury, Vincent Coupard, Valentin Valtchev, Arnaud Travert, Jean-Pierre Gilson

A highly selective FER-based catalyst to produce n-butenes from isobutanol

Applied Catalysis B: Environmental 2021, 284, 119699.

DOI: https://doi.org/10.1016/j.apcatb.2020.119699

Ilia A. Pankin, Houeida Issa Hamoud, Kirill A. Lomachenko, Søren Birk Rasmussen, Andrea Martini, Philippe Bazin, Valentin Valtchev, Marco Daturi, Carlo Lamberti, Silvia Bordiga

Cu- and Fe-speciation in composite zeolite catalyst for selective catalytic reduction of NO_x: insights from operando XAS

Catalysis Science & Technology 2021, 11, 846-860.

DOI: 10.1039/d0cy01654c

Jihye Choi, Valentin Valtchev, Takahiko Moteki, Masaru Ogura

Phase Change Material-Containing Mesoporous Zeolite Composite for Adsorption Heat Recovery

Advanced Materials Interfaces 2021, 8, 2001085.

DOI: doi.org/10.1002/admi.202001085

2020

Saikat Das, Teng Ben, Shilun Qiu, and Valentin Valtchev

Two-Dimensional COF–Three-Dimensional MOF Dual-Layer Membranes with Unprecedentedly High H₂/CO₂ Selectivity and Ultrahigh Gas Permeabilities

ACS Applied Materials and Interfaces, 2020, 12, 47, 52899–52907.

DOI: doi.org/10.1021/acsami.0c17794

Tekla, L. Lakiss, V. Valchev, K.A. Tarach, M. Jabłońska, V. Girman, A. Szymocha, A. Kowalczyk, K. Góra-Marek, J.-P. Gilson

Increasing the catalytic performance of erionite by hierarchization

Microporous Mesoporous Materials 299 (2020) 110088.

DOI: doi.org/10.1016/j.micromeso.2020.110088

Chen, G. Yang, V. Valtchev

Environmentally benign synthesis of crystalline nanosized molecular sieves

Green Energy & Environment 2020, accepted.

DOI: doi.org/10.1016/j.gee.2020.10.014

Yusran, Q. Fang, V. Valtchev

Electroactive Covalent Organic Frameworks: Design, Synthesis, and Applications

Advanced Materials, 2020, 32, 2002038. (Review paper)

DOI: 10.1002/adma.202002038

Palcic & V. Valtchev

Analysis and control of acid sites in zeolites

Applied Catalysis A, General 2020, 606, 117795. (Review paper)

DOI: 10.1016/j.apcata.2020.117795

Anfray, S. Komaty, A. Corroyer-Dulmont, M. Zaarour, C. Helaine, H. Ozcelik, C. Allioux, J. Toutain, K. Goldyn, E. Petit, K. Bordji, M. Bernaudin, V. Valtchev, O. Touzani, S. Mintova, S. Valable

Nanosized zeolites as a gas delivery platform in a glioblastoma model Biomaterial

Biomaterials, 2020, 257, 120249.

DOI: 10.1016/j.biomaterials

Diandian Shi, Kok-Giap Haw, Cassandre Kouvatas, Lingxue Tang, Yiying Zhang, Qianrong Fang, Shilun Qiu, Valentin Valtchev

Expanding the synthesis field of high silica zeolites

Angewandte Chemie, 2020, 59, 19576-19581.

DOI: 10.1002/anie.202007514

Li, Hui; Ding, Jiehua; Guan, Xinyu; Chen, Fengqian; Li, Cuiyan; Zhu, Liangkui; Xue, Ming; Yuan, Daqiang; Valtchev, Valentin; Yan, Yushan; Qiu, Shilun; Fang, Qianrong

Three-Dimensional Large-Pore Covalent Organic Framework with stp Topology

13338. Am. Chem. Soc. 2020, 142, 31, 13334–13338.

DOI: dx.doi.org/10.1021/jacs.0c06485

V. Konnov, F. Dubray, E. B. Clatworthy, C. Kouvatas, J.-P. Gilson, J.-P. Dath, D. Minoux, C. Aquino, V. Valtchev, S. Moldovan, N. Nesterenko, S. Mintova

Novel strategy for synthesis of ultra-stable single-site Mo-ZSM-5 zeolite nanocrystals Angewandte Chemie, 2020, 59, 19553-19560.

DOI: 10.1002/ange.202005498

Guoju Yang, Ji Han, Yujun Huang, Xiaoxin Chen, Valentin Valtchev,

Busting the efficiency of SAPO-34 catalysts for the methanol-to-olefin conversion by post-synthesis methods

Chinese Journal of Chemical Engineering, 2020, 28, 2022-2027. (Review paper)

DOI: doi.org/10.1016/j.cjche.2020.05.028

Ping, J. Ding, Z. Qin, L. Tang, K.-G. Haw, Y. Zhang, Q. Fang, S. Qiu, V. Valtchev

Binder-free preparation of ZSM-5@silica beads and their use for organic pollutants removal

Inorg. Chem. Front. 2020, 7, 2080 – 2088.

DOI: 10.1039/D0QI00259C

Babic, L. Tang, Z. Qin, L. Hafiz, J.-P. Gilson, V.Valtchev

Comparative Study of Zeolite L Etching with Ammonium Fluoride and Ammonium Bifluoride Solutions

Advanced Materials Interfaces 2020, 8, 2000348.

DOI: doi.org/10.1002/admi.202000348

K.-G. Haw, S. Moldovan, L. Tang, Z. Qin, Q. Fang, S.Qiu, V. Valtchev

A sponge-like small pore zeolite with great accessibility to the micropores

Inorg. Chem. Front. 2020, 7, 2154 – 2159.

DOI: https://doi.org/10.1039/D1QI01586A

Louwanda al Lakiss, Aurélie Vicente, Jean-Pierre Gilson, Valentin Valtchev, Svetlana Mintova, Alexandre Vimont, Robert Bedard, Suheil Abdo, Jeffery Bricker

Probing the Brønsted acidity of the external surface of Faujasite type zeolites

ChemPhysChem 2020, 21, 1873-1881.

DOI: doi.org/10.1002/cphc.202000062

Yusran, H. Li, X. Guan, L. Tang, M. Xue, Z. Zhuang, Y. Yan, V. Valtchev, S. Qiu, Q. Fang

Exfoliated Mesoporous 2D Covalent Organic Frameworks for High‐Rate Electrochemical Double‐Layer Capacitors

Advanced Materials, 2020, 32 (8), 1907289.

DOI: 10.1002/adma.201907289

Palcic, S. Babić, A. Maršavelski; M. Galić; N.Topić Popović; I. Strunjak Perović; R.Čož-Rakovac; J. Bronić; V. Valtchev

Nanosized zeolite beta – determining the safety of usage by zebrafish Danio rerio embryos

Microporous Mesoporous Materials, 2020, 299, 110103.

DOI: 10.1016/j.micromeso.2020.110103

Yu, C. Li, Y. Ma, D. Li, X. Guana, T. Yan, V. Valtchev, S. Qiu, Q. Fang

Crystalline, porous, covalent polyoxometalate-organic frameworks for lithium-ion batteries

Microporous Mesoporous Materials, 2020, 299, 110105. 

DOI: 10.1016/j.micromeso.2020.110105

Lakiss, J.-P. Glson, V. Valtchev, S. Mintova, A. Vicente, A. Vimont, B. Bedart, S. Abdo, J. Bricker

Zeolites in a Good Shape: Catalyst Forming by Extrusion Modifies their Performances

Microporous Mesoporous Materials, 2020, 299, 110114. 

DOI:  10.1016/j.micromeso.2020.110114

Yujie Wang, Yaozu Liu, Hui Li, Xinyu Guan, Ming Xue, Yushan Yan, Valentin Valtchev, Shilun Qiu, Qianrong Fang

Three-Dimensional Mesoporous Covalent Organic Frameworks through Steric Hindrance Engineering

3741. Am. Chem. Soc. 2020, 142, 3736-3741.

DOI: 10.1021/jacs.0c00560

Akouche, J.-P. Gilson, N. Nesterenko, S. Moldovan, D. Chateigner, H. El Siblani, D. Minoux, J.-P. Dath, V. Valtchev

Synthesis of Embryonic Zeolites with Controlled Physicochemical Properties

Chem. Mater., 2020, 32 (5), 2123–2132

DOI: 10.1021/acs.chemmater.9b05258

Přech, D. R. Strossi Pedrolo, N. R. Marcilio, B. Gu, A. S. Peregudova, M. Mazur, V. V. Ordomsky, V. Valtchev, A.Y. Khodakov

Core-Shell Metal Zeolite Composite Catalysts for In Situ Processing of Fischer-Tropsch Hydrocarbons to Gasoline Type Fuels

ACS Catalysis, 2020, 10, 2544-2555.

DOI: 10.1021/acscatal.9b04421

Qin, L. Hafiz, Y. Shen, S.Van Daele, P. Boullay, V. Ruaux, S. Mintova, J.-P. Gilson, V. Valtchev

Defect-engineered zeolite porosity and accessibility

3631. Mater. Chem. A, 2020, 8, 3621-3631.

DOI: 10.1039/C9TA11465C

Prech, E. Ioannou, V. Roussis, V.E. Kuncser, I. Podolean, S. M. Coman, V. Valtchev, V. I. Parvulescu

Magnetic Fe@Y Composites as Efficient Recoverable Catalysts for the Valorization of the Recalcitrant Marine Sulfated Polysaccharide Ulvan

ACS Sustainable Chemistry & Engineering, 2020, 8, 319-328.

DOI:10.1021/acssuschemeng.9b05406

Catizzone, M. Magliori, S. van Daele, T. Mineva, V. Valtchev, G. Giordano

New synthesis routes and catalytic applications of ferrierite crystals. Part 1: 1,8-Diaminooctane as a new OSDA

Microporous Mesoporous Materials, 2020, 296, 109987.

DOI: 10.1016/j.micromeso.2019.109987

Catizzone, M. Magliori, S. van Daele, T. Mineva, V. Valtchev, G. Giordano

New synthesis routes and catalytic applications of ferrierite crystals. Part 2: The effect of OSDA type on zeolite properties and catalysis

Microporous Mesoporous Materials, 2020, 296, 109988.

DOI: 10.1016/j.micromeso.2019.109988

Khodakov,V.Ordomsky, A. Palcic, M. Cai, V. Subramaniana, Y. Luo, V. Valtchev, S. Moldovan, O. Ersen

Assessment of metal sintering in the copper-zeolite hybrid catalyst for direct dimethyl ether synthesis using synchrotron-based X-ray absorption and diffraction

Catalysis Today, 2020, 343, 199-205.

DOI: 10.1016/j.cattod.2019.01.023

2019

Yun Wang, Teng Ben, Shilun Qiu, Valentin Valtchev

Aligned High Density Semi‐Conductive Ultra‐Small Single‐Walled Carbon Nanotubes. ChemistrySelect, 2019, 4 (43), 12676-12679.

DOI: 10.1002/slct.201904178

Fan, N. Barrier, A. Vicente, J.-P. Gilson, S. Clevers, V. Dupray, G. Coquerel, V. Valtchev

Organic template-free synthesis of an open framework silicoaluminophoshate (SAPO) with high thermal stability and high ion conductivity

Inorg. Chem. Front. 2020, 7 (2) 542-553.

DOI: 10.1039/C9QI01223K

Liu, Y. Wang, H. Li, X. Guan, L. Zhu, M. Xue, Y. Yan, V. Valtchev, S. Qiu, Q. Fang

Ambient Aqueous-Phase Synthesis of Covalent Organic Frameworks for Degradation of Organic Pollutants

Chemical Science 2019, Issue 46, Issue 46, 10657-10824.

DOI: 10.1039/C9SC03725J

Tang, K.-G. Haw, P. He, Q. Fang, S. Qiu, V. Valtchev

Synthesis of zeolite SSZ-24 using a catalytic amount of SSZ-13 seeds

Inorg. Chem. Front. 2019, 6, 3097-3103.

DOI: 10.1039/C9QI00971J

Li, J. Chang, S. Li, X. Guan, D. Li, C. Li, L. Tang, M. Xue, Y. Yan, V. Valtchev, S. Qiu, Q. Fang

Three-Dimensional Tetrathiafulvalene-Based Covalent Organic Frameworks for Tunable Electrical Conductivity

13329. Am. Chem. Soc. 2019, 141 (34), 13324-13329.

DOI: 10.1021/jacs.9b06908

Palcic, B. M. Szyja, M. Micetic, T. Cendak, M. Akouche, K. Juraic, M. Cargonja, D. Mekterovic, V. Vusak, V. Valtchev

Impact of the Zn source on the RSN-type zeolite formation

Inorg. Chem. Front., 2019, 6, 2279-2290.

DOI: 10.1039/c9qi00433e

He, K.-G. Haw, L. Tang, Q. Fang, S. Qiu, V. Valtchev

Carbon beads with well-defined pore structure derived from ion-exchange resin beads

18294. Mater. Chem. A (RSC), 2019, 7, 18285-18294.

DOI: 10.1039/C9TA04069B

Guan, H. Li, Y. Ma, M. Xue, Q. Fang, Y. Yan, V. Valtchev, S. Qiu

Chemically stable polyarylether-based covalent organic frameworks

Nature Chemistry, 2019, 11, 587-594.

DOI: 10.1038/s41557-019-0238-5

Rodrigues, T. Georgelin, G.Gabant, B. Rigaud, F. Gaslain, G. Zhuang, M.G. da Fonseca, V. Valtchev, D. Touboul, M. Jaber

Confinement and Time Immemorial: Prebiotic Synthesis of Nucleotides on a Porous Mineral Nanoreactor

The Journal of Physical Chemistry Letters, 2019, 10, 4192-4196.

DOI: 10.1021/acs.jpclett.9b01448

Flores, V.L. Zholobenko, B. Gu, N. Batalha,V. Valtchev, W. Baaziz, O. Ersen, N. R.Marcilio, V. V. Ordomsky, A. Y. Khodakov

Versatile Roles of Metal Species in Carbon Nanotube Templates for the Synthesis of Metal Zeolite Nanocomposite Catalysts

ACS Applied Nano Materials, 2019, 2, 4507-4517.

DOI: 10.1021/acsanm.9b00888

I. Hamoud, M. Lafjah, F. Douma, O. I. Lebedev, F. Djafri, V. Valtchev, M. Daturi, M. El-Roz

Photo-assisted SCR over highly dispersed silver sub-nanoparticles in zeolite under visible light: an Operando FTIR study

Solar Energy, 2019, 189, 244-253.

DOI: 10.1016/j.solener.2019.07.020

Qin, L. Pinard, M. A. Benghalem, T. Jean Daou, G. Melinte, O. Ersen, S. Asahina, J.-P. Gilson, V. Valtchev

Preparation of Single Crystals “House-of-Cards”-like ZSM-5 and Their Performance in Ethanol-to-Hydrocarbons Conversion

Chem. Mater., 2019, 31, 4639-4648.

DOI: 10.1021/acs.chemmater.8b04970

Z.-T. Wang, Q. Fang, V. Valtchev, X.-M. Li, Y.-R. Pan

Hydrothermal synthesis and crystal structure of three-dimensional supramolecular zinc, manganese coordination polymers

Inorganic Nano-Metal Chemistry, 2019, 49, 44-50.

DOI: 10.1080/24701556.2019.1586724

Ma, X. Liu, X. Guan, H. Li, Y. Yusran, M. Xue, Q. Fang, Y. Yan, S. Qiu, V. Valtchev

One-pot cascade syntheses of microporous and mesoporous pyrazine-linked covalent organic frameworks as Lewis-acid catalysts

Dalton Transactions, 2019, 48, 7352-7357.

DOI: 10.1039/c8dt05056b

Issa Hamoud, V. Valtchev, M. Daturi

Selective Catalytic Reduction of NOx over Cu- and Fe-exchanged zeolites and their mechanical mixture

Applied Catalysis B: Environmental, 2019, 250, 419-428.

DOI: 10.1016/j.apcatb.2019.02.022

Prech, K. N. Bozhilov, J. El Fallah, N. Barrier, V. Valtchev

Fluoride etching opens the structure and strengthens the active sites of the layered ZSM-5 zeolite

Microporous Mesoporous Materials, 2019, 280, 297-305.

DOI: 10.1016/j.micromeso.2019.02.023

Tang, K.-G. Haw, Y. Zhang, Q. Fang, S. Qiu, V. Valtchev

Fast and Efficient Synthesis of SSZ-13 by Interzeolite Conversion of Zeolite Beta and Zeolite L

Microporous Mesoporous Materials, 2019, 280, 306-314.

DOI: 10.1016/j.micromeso.2019.02.021

Goldyn, C. Anfray, V. Ruaux, H. Charly, R. Retoux, S. Komaty-Zaarour, S. Valable, V. Valtchev, S. Mintova

Copper exchanged FAU nanozeolite as non-toxic nitric oxide and carbon dioxide gas carrier

Microporous Mesoporous Materials, 2019, 280, 271-276.

DOI: 10.1016/j.micromeso.2019.02.022

Yan, X. Guan, H. Li, D. Li, M. Xue, Y. Yan, V. Valtchev, S. Qiu, Q. Fang

Three-Dimensional Salphen-Based Covalent Organic Frameworks as Catalytic Antioxidants

2924. Am. Chem. Soc., 2019, 141, 2920–2924.

DOI: 10.1021/jacs.9b00485

Catizzone, S. Van Daele, M. Bianco, A. Di Michelec, A. Aloise, M. Migliori, V. Valtchev, G. Giordano

Catalytic application of ferrierite nanocrystals in vapour-phase dehydration methanol to dimethyl ether

Applied Catalysis B: Environmental, 2019, 243, 273-282.

DOI: 10.1016/j.apcatb.2018.10.060

2024: Anton Paar Absolutely Award for the most influential paper in the field of gas adsorption for 2024 (Nature 2024, 636, 368-373). The award includes a physisorption instrument (Autosorb 6100, 130 000 €).

2023: Editor-in-Chief of Green Carbon (Elsevier) – the mission of the journal is “minimizing CO₂ emissions for a sustainable future and a greener society« .

2022: Valentin Valtchev (CNRS, France) is the recipient of the 2022 International Zeolite Association (IZA) award for his important contributions to the fundamental understanding of zeolite synthesis and post-synthesis modification of industrially-important zeolites.

Prof. Valtchev will act as the IZA Ambassador from now until the next International Zeolite Conference in 2025.

2016: Donald W. Breck Award – the highest recognition of the International Zeolite Association

2016: La Recherche 2016: Chimie Award, France

2014: Baron fon Cronstedt Award – the highest recognition of the Federation of European Zeolite Associations

2011: Breakthrough of 2011 according to the Editors of Science (9 place) for the work on the synthesis of ultra-small EMT type zeolite (Science 335 (2012) 70 – 73).

1991: Eureka Award – Bulgaria Young Inventor Award

Honorary Member of the French Zeolite Association (2025)

Editor-in-Chief of Green Carbon (Elsevier) – the mission of the journal is “minimizing CO2 emissions for a sustainable future and a greener society” (2023)

Chair “Breck award committee” of the International Zeolite Association (2022)

Honorary Professor of China University of Petroleum (2017)

President of the International Zeolite Association (2016 – 2019)

Manager of the International Zeolite Association website (http://www.iza-online.org/) (2015 – now)

International

France

Co-Chair 2^nd Green Carbon Conference, 442 participants, Qingdao, China, 2025

Co-Chair 1^st Green Carbon Conference, 327 participants, Qingdao, China, 2023

Chair of the international summer school “Zeolite and related materials in the energy transition period”, 2250 virtual participants, 2021

Co-Chair of the 7th Federation of European Zeolite Associations (FEZA) 2017, Sofia, Bulgaria, 2017

Co-Chair of the 6th Symp. “Advanced Micro- and Mesoporous Materials”, Pomorie, Bulgaria, 2015

Chair of the 2nd “Euro-Asia Zeolite Conference”, Nice, France 2015

Chair of the 5th Symp. “Advanced Micro- and Mesoporous Materials”, Riviera beach, Bulgaria, 2013

Co-Chair of the 6th Symp. “Advanced Micro- and Mesoporous Materials”, Pomorie, Bulgaria, 2015

Co-Chair of the 1st “Euro-Asia Conference on Porous solids”, Macau, China, 2013

Chair of the 5th Symp. “Advanced Micro- and Mesoporous Materials”, Riviera beach, Bulgaria, 2013

Secretary of the 4th Symposium “Advanced Micro- and Mesoporous Materials”, Varna, Bulgaria, 2011

Co-Chair of the symposium “Engineering of structures micro- and mesoporous catalysts” in the series ABC-6 (6th World congress on catalysis by acids and bases), Genova, Italy, 2009

Co-Chair of the 3rd Symposium “Advanced Micro- and Mesoporous Materials”, Albena, Bulgaria, 2009

Secretary of the 2nd Symposium “Advanced Micro- and Mesoporous Materials”, Varna, Bulgaria, 2007

Vice-Chair of the 1st Symposium “Advanced Micro- and Mesoporous Materials”, Nessebar, Bulgaria, 2005

LCS-Workshop “Zeolites: Prospects and Challenges” – yearly organized event gathering people from industry and academia.

Alumni PhD

• Lubomira Tosheva
• Olivier Larlus
• Younes Bouizi
• Yannick Mathieu
• Floran Guillou
• Alexandra Jacob
• Ali Darwiche
• Lama Itani
• Xiaoqin Zou
• Ana Palcic
• Kok-Giap Haw
• Vesselina Georgieva
• Leila Hafiz
• Camila Goldyn
• Viktoria Babic
• Ping He
• Weijiong Dai
• Lingxue Tang
• Yiying Zhang
• Zhi-Tao Wang

Alumni Post Doctoral students

• Lubomira Tosheva
• Fabrice Gaslain
• Roy Chowdhury
• Feifei Gao
• Lowanda Lakiss
• Zhengxing Qin
• Ana Placic
• Jan Prêch
• Kok-Giap Haw
• Mariame Akouche
• Chuanqi Zhang
• Jifa Miao
• Guangying Fu
• Sajjad Ghojavand
• Mariame Akouche
• Lahrar El-Hassane
• Igor Telegieev
• Jin Zhang
• Jifa Miao
• Vera Bikbaeva
• Ahmed Omran
• Diandian Shi

Alumni Research associates

• Prof. Satoshi Inagaki
• Dr. Feifei Gao
• Dr. Natalie Maie
• Dr. Yonnes Bouizi