Project granted in the framework of HORIZON-CL4-2021-RESILIENCE-01-14 

Title: Fast-Response electrically heated catalytic reactor technology for CO2 reduction

Acronym: e-CODUCT

Abstract: The e-CODUCT project aims at electrifying the simultaneous chemical conversion acid gas components (CO2 and H2S) into the platform molecule CO and marketable sulphur using an electrothermal fluidised bed reactor (ETFB) technology. The corresponding process will comprise two steps: a first one for CO2 and H2S reduction into COS and a second step for COS decomposition into the platform molecule CO and Claus grade sulphur. To demonstrate its valorisation potential, CO will be converted into green methanol as final product using a third reaction. The e-CODUCT consortium is composed of nine entities including industrial and academic partners spanning a complete value chain from material suppliers and engineers to modelling experts and technology providers. e-CODUCT will optimise and scale-up the reactor materials and catalysts to TRL6 to 16t/y of CO production while reducing reactor size by 50%, among others via the removal of heating units. ….

LCS funding: 1 200 000 €

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.

• 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

2013 – now: Research Director (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

• 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 > 300, Patents 26, Book chapters 8, Book edition 6

More than 50 plenary and keynote lectures including at the most important events in the field of nanoporous materials

h-index 61 (42 average citation) Web of Science

h-index 71 (Citations: > 16100) Google knowledge

Honors

1)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)

2) 2022- Chair of the “Breck committee” of the International Zeolite Association

3) 2017- Honorary Professor of China University of Petroleum

4) 2016- Elected President of the International Zeolite Association

5) 2016- “Donald Breck” award, the highest recognition of the International Zeolite Association

6) 2016- “La Recherche 2016: Chimie” award, France

7) 2015- Manager of the International Zeolite Association web site

8) 2014- “Baron fon Cronstedt” award, the highest recognition of the Federation of European Zeolite Associations

9) 2014- “Thousand Talents” Professor, Jilin University, China

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

11) 1991 – Bulgaria “Young inventor”

PhD(s)

Post Doctoral Researcher(s)

Engineer(s)

Current Projects

EIG Concert:

“Upgrading of Novel Multi-dimensional Microporous Catalysts for Green Chemical Reactions” – three-party project involving LCS-Caen (France) – University of Yokohama (Japan) – University of Sofia (Bulgaria).

CARNOT project 3DNanoZET:

“Development of transmission electron microscopy techniques for analysis of ultra-small nanoporous materials and their 3D imaging” – two-party project involving LCS (Caen) and GPM (Rouan).

LaBex ZeoMah:

“Preparation of new type embryonic zeolites” – three-party project involving LCS (Caen) – LCMT (Caen) – GPM (Rouen).

Chair of Excellence:

“Advanced Porous and Textural Engineering of Zeolitic Materials for a Cleaner Energy: Going beyond the Horizon” with Principal Investigator Dr. Rémy Guillet-Nicolas.

Projects in the framework of Industrial Chair program NanoCleanEnergy:

– Development of metal sulfides grafted embryonic zeolites for methane activation.

– Gas hydrates synthesis for storage of methane, hydrogen and carbon dioxide.

Recent publications

2022

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
Angew. Chem., 2022
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
DOI: https://doi.org/10.1002/chem.20210433

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

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
Angew. Chem., 2022
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
DOI: https://doi.org/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. 2021
DOI: https://doi.org/10.1016/j.micromeso.2021.111592

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
DOI: https://doi.org/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
Angew. Chem., 2021, 60 (51) 26702-26709
DOI: https://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/anie.200

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
Angew. Chem. 2021, 60 (41), 22230-22235.
DOI: https://doi.org/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
J. Phys. Chem. C 2021, 125, 36, 20028–20034
DOI: https://doi.org/10.1021/acs.jpcc.1c05501

Viktoria Babić, Siddardha Koneti, Simona Moldovan, Maxime Debost, Jean-Pierre Gilson,ValentinValtchev
Chromic acid dealumination of zeolites
Micropor. Mesopor Mater. 2021
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. 2021
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: https://doi.org/10.1002/advs.202104414

2021

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
J. Mater. Chem. A 2021, 9, 24922 – 24931.
DOI: https://doi.org/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,
DOI: https://doi.org/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
J. Mater. Chem. A 2021, accepted.
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: https://doi.org/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: https://doi.org/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, accepted.
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: https://doi.org/10.1126/sciadv.abg0454

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
J. Clust. Sci. 2021, accepted.
DOI: https://doi.org/10.1007/s10876-021-02042-3

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
J. Am. Chem. Soc. 2021, 143, 2654–2659.
DOI: https://doi.org/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: https://doi.org/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: https://doi.org/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: https://doi.org/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
J. Am. Chem. Soc. 2021, 143, 1993–2004.
DOI: https://doi.org/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 NOx: insights from operando XAS
Catalysis Science & Technology 2021, 11, 846-860.
DOI: https://doi.org/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: https://doi.org/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 Appl. Mater. Interfaces 2020, 12, 47, 52899–52907.
DOI: https://doi.org/doi.org/10.1021/acsami.0c17794

J. 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: https://doi.org/doi.org/10.1016/j.micromeso.2020.110088

X. Chen, G. Yang, V. Valtchev
Environmentally benign synthesis of crystalline nanosized molecular sieves
Green Energy and Environment 2020, accepted.
DOI: https://doi.org/doi.org/10.1016/j.gee.2020.10.014

Y. Yusran, Q. Fang, V. Valtchev
Electroactive Covalent Organic Frameworks: Design, Synthesis, and Applications
Advanced Materials, 2020, 32, 2002038. (Review paper)
DOI: https://doi.org/10.1002/adma.202002038

A. Palcic & V. Valtchev
Analysis and control of acid sites in zeolites
Applied Catalysis A, General 2020, 606, 117795. (Review paper)
DOI: https://doi.org/10.1016/j.apcata.2020.117795

C. 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: https://doi.org/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: https://doi.org/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
J. Am. Chem. Soc. 2020, 142, 31, 13334–13338.
DOI: https://doi.org/10.1021/jacs.0c06485

S. 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: https://doi.org/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: https://doi.org/doi.org/10.1016/j.cjche.2020.05.028

H. 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: https://doi.org/10.1039/D0QI00259C

V. 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: https://doi.org/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: https://doi.org/doi.org/10.1002/cphc.202000062

Y. 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: https://doi.org/10.1002/adma.201907289

A. 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: https://doi.org/10.1016/j.micromeso.2020.110103

X. 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: https://doi.org/10.1016/j.micromeso.2020.110105

L. 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: https://doi.org/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
J. Am. Chem. Soc. 2020, 142, 3736-3741.
DOI: https://doi.org/10.1021/jacs.0c00560

M. 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: https://doi.org/10.1021/acs.chemmater.9b05258

J. 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: https://doi.org/10.1021/acscatal.9b04421

Z. 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
Journal of Materials Chemistry A, 2020, 8, 3621-3631.
DOI: https://doi.org/10.1039/C9TA11465C

J. 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: https://doi.org/10.1021/acssuschemeng.9b05406

E. 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: https://doi.org/10.1016/j.micromeso.2019.109987

E. 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: https://doi.org/10.1016/j.micromeso.2019.109988

A. 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: https://doi.org/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.
Chemistry Select, 2019, 4 (43), 12676-12679.
DOI : https://doi.org/10.1002/slct.201904178

D. 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: https://doi.org/10.1039/C9QI01223K

Y. 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: https://doi.org/10.1039/C9SC03725J

L. 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: https://doi.org/10.1039/C9QI00971J

H. 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
J. Am. Chem. Soc. 2019, 141 (34), 13324-13329.
DOI: https://doi.org/10.1021/jacs.9b06908

A. 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: https://doi.org/10.1039/c9qi00433e

P. 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
J. Mater. Chem. A (RSC), 2019, 7, 18285-18294.
DOI: https://doi.org/10.1039/C9TA04069B

X. 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: https://doi.org/10.1038/s41557-019-0238-5

F. 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: https://doi.org/10.1021/acs.jpclett.9b01448

C. 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: https://doi.org/10.1021/acsanm.9b00888

H. 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: https://doi.org/10.1016/j.solener.2019.07.020

Z. 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: https://doi.org/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: https://doi.org/10.1080/24701556.2019.1586724

Y. 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: https://doi.org/10.1039/c8dt05056b

H. 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: https://doi.org/10.1016/j.apcatb.2019.02.022

J. 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: https://doi.org/10.1016/j.micromeso.2019.02.023

L. 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: https://doi.org/10.1016/j.micromeso.2019.02.021

K. 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: https://doi.org/10.1016/j.micromeso.2019.02.022

S. 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
J. Am. Chem. Soc., 2019, 141, 2920–2924.
DOI: https://doi.org/10.1021/jacs.9b00485

E. 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: https://doi.org/10.1016/j.apcatb.2018.10.060

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

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

Honorary Professor of China University of Petroleum (2017)

President-elect of the International Zeolite Association (2016 – 2019)

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

International

Prof. Shilun Qiu & Prof. Qianrong Fang
Jilin University
Changchun, China

Prof. Georgi Vayssilov
University of Sofia
Sofia, Bulgaria

Prof. Krassimir N. Bozhilov
University of California
Riverside, USA

Prof. Girolamo Giordano,
University of Calabria
Cosenza, Italy

France

Prof. Maguy Jaber
Sorbonne University
Paris, France

Chair of the 7th FEZA post-conference school, Plovdiv, Bulgaria, 2017

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

Alumni Research associates

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