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Blog

POST-DOC position available – NOx trap – [ Closed ]

By Pascal ROLAND | Job opportunities at LCS | Comments are Closed | 3 November, 2014 | 0

[warning] This position is now closed. [/warning]   In the frame of a project financed by Toyota, the LCS recruits a post-Doc likely to start as soon as possible. The project aims at gaining further knowledge on a specific deNOx catalytic process: the NOx trap one. The comprehension work will be directed towards crucial questionsRead more

Séminaire 17/11/14 14h30 : Mikhail BAKLANOV

By Nathalie PERRIER | | 0 comment | 3 November, 2014 | 0

Séminaire 17/11/14 14h30 : Mikhail BAKLANOV Porous materials in nano electronicsRead more

Synthesis of Zeolite Nanoparticles for Environmental Applications

By Christian FERNANDEZ | news | Comments are Closed | 23 June, 2014 | 0

phD defense of  Hussein AWALA Friday, June 27th 10:30 (Salle des thèses en Sciences 3) Zeolite nanoparticles with diverse pore architectures, high external surface area, micro/mesoporosity, define particle size and morphology open the door for advanced applications. In addition to catalysis, separation and ion exchange processes, nanosized zeolites assembled in films and three-dimensional constructs are usedRead more

Effect of zeolite nanoparticles on the optical properties of diacetone acrylamide-based photopolymer

By Christian FERNANDEZ | news | Comments are Closed | 19 June, 2014 | 0

by D. Cody, E. Mihaylova, L. O’Neill, T. Babeva, H. Awala, R. Retoux, S. Mintova, I. Naydenova DOI: 10.1016/j.optmat.2014.05.021 Highlights • A new photopolymer nano composite based on a low toxicity monomer and BEA type zeolite nano particles is developed. • Significant improvement of the refractive index modulation in holographic recording. • Nanoparticles’ pores remainRead more

Microwave synthesis of colloidal stable AlPO-5 nanocrystals with high water adsorption capacity and unique morphology

By Christian FERNANDEZ | news | Comments are Closed | 19 June, 2014 | 0

by Eng-Poh Ng,Darren Tat-Lun Ng, Hussein Awala, Ka-Lun Wong, Svetlana Mintova DOI: 10.1016/j.matlet.2014.06.022 Highlights •Microwave synthesis of AlPO-5 nanocrystals is reported. •Nanosized AlPO-5 is synthesized using a new imidazolium template. •Microwave heating shortens the crystallization time. •AlPO-5 nanocrystals possess unique morphology and are sized ca. 300 nm. •The nanocrystals are colloid stable and exhibit hydrophilicRead more

Soutenance de thèse de Hussein AWALA – 27 juin 2014

By Nathalie PERRIER | | 0 comment | 13 June, 2014 | 0

Soutenance de thèse de Hussein AWALA, intitulée : Synthesis of Zeolite Nanoparticles for Environmental Applications Vendredi 27 juin à 10h30 dans la Salle des thèses en Sciences 3Read more

Séminaire Vladimir ZHOLOBENKO – 12/06/14 14:30h

By Nathalie PERRIER | | 0 comment | 12 June, 2014 | 0

12/06/2014 14:30 h Salle de conférence CNRT Vladimir Zholobenko, Lennard-Jones Laboratories, Keele University, UK “Asbestos identification using vibrational spectroscopy”Read more

Seminar V. Zholobenko June 12, 2014 – 2:30 PM

By Nathalie PERRIER | news | Comments are Closed | 12 June, 2014 | 0

12/06/2014 14:30 h Salle de conférence CNRT Vladimir Zholobenko, Lennard-Jones Laboratories, Keele University, UK “Asbestos identification using vibrational spectroscopy”Read more

Crystal growth kinetics as a tool for controlling the catalytic performance of a FAU-type basic catalyst – ACS Catalysis

By Christian FERNANDEZ | news | Comments are Closed | 7 June, 2014 | 0

By Satoshi Inagaki, Karine Thomas, Valerie Ruaux, Guillaume Clet, Toru Wakihara, Shoma Shinoda, Sae Okamura, Yoshihiro Kubota and Valentin Valtchev DOI: 10.1021/cs500153e Abstract This study reports on the catalytic performance of nanosized zeolite X crystals and their precursors in the reaction of benzaldehyde with ethyl cyanoacetate. Crystal growth kinetics of FAU-type zeolite is studied atRead more

Understanding the storage function of a commercial NOx-storage-reduction material using operando IR under realistic conditions

By Christian FERNANDEZ | news | Comments are Closed | 31 May, 2014 | 0

By Juliette Dupré, Philippe Bazin, Olivier Marie, Marco Daturi, Xavier Jeandel and Frédéric Meunier DOI: 10.1016/j.apcatb.2014.05.027 Highlights A commercial NOx-Storage-Reduction (NSR) material was investigated by operando FT-IR Ionic carbonates at the outer layers of Ba particles were replaced with ionic-like nitrates Covalent species (at surface sites of alumina and ceria) were unimportant for the storage.Read more

3rd Workshop on Zeolites

By Pascal ROLAND | news | Comments are Closed | 22 May, 2014 | 0

The LCS team thanks all participants attending the 3rd Workshop on ZeolitesRead more

Dramatic promotion of copper-alumina catalysts by sodium for acetone trimerisation

By Christian FERNANDEZ | news | Comments are Closed | 20 May, 2014 | 0

Emanuelle LIGNER, Frederic Meunier, arnaud travert, Sylvie Maury and Nicolas Cadran Catal. Sci. Technol., 2014, Accepted Manuscript DOI: 10.1039/C4CY00440J Na-promoted Cu-Al materials are efficient multifunctional catalysts for the direct conversion of gas phase acetone to diisobutyl ketone (DIBK) with unprecedented yields (up to 31 %). The Na content is a major parameter determining the stabilityRead more

3rd Workshop on Zeolites

By Pascal ROLAND | | Comments are Closed | 12 May, 2014 | 0

Read more

Photochemical preparation of silver nanoparticles supported on zeolite crystals

By Christian FERNANDEZ | news | Comments are Closed | 11 May, 2014 | 0

By Moussa Zaarour, Mohamad El-Roz, Biao Dong, Richard Retoux, Roy Aad, Julien Cardin, Christian Dufour, Fabrice Gourbilleau, Jean-Pierre Gilson and Svetlana Mintova DOI: 10.1021/la5006743 Abstract A facile and rapid photochemical method to prepare supported silver nanoparticles (Ag-NPs) in a suspension of faujasite-type (FAU) zeolite nanocrystals is described. Silver cations are introduced by ion exchange inRead more

Photoreduction of Ag+ by Diethylaniline in colloidal zeolite nanocrystals

By Christian FERNANDEZ | news | Comments are Closed | 19 April, 2014 | 0

by Florence Luchez, Zakaria Tahri, Vincent De Waele, Ivan Yordanov, Svetlana Mintova, Alain Moissette, Mehran Mostafavi, Olivier Poizat http://dx.doi.org/10.1016/j.micromeso.2014.04.008 Highlights • Extra-framework Ag+ in colloidal zeolite Beta nanocrystals was photoreduced by amine. • Subsequent early nucleation of silver atoms was followed by transient absorption. • Ag0 is formed in less than 100 ns and is stable forRead more

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Publications récentes

  • Removal of chlorinated volatile organic compounds onto natural and Cu-modified zeolite: The role of chemical surface characteristics in the adsorption mechanism
  • Facile and fast determination of Si/Al ratio of zeolites using FTIR spectroscopy technique
  • Highly active Pd containing EMT zeolite catalyst for indirect oxidative carbonylation of methanol to dimethyl carbonate
  • Double Stopband Bilayer Photonic Crystal Based Upconversion Fluorescence PSA Sensor

Collection LCS HAL

Copyright 2020 - Laboratoire Catalyse & Spectrochimie - Directeur de publication : Guillaume CLET | Creative Commons 4.0 International
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