A5049157956- Catalytic Processes in Materials Science
- Catalysis and Oxidation Reactions
- Catalysis and Hydrodesulfurization Studies
- Nanomaterials for catalytic reactions
- Electrocatalysts for Energy Conversion
- Mesoporous Materials and Catalysis
- Catalysts for Methane Reforming
- Advanced Photocatalysis Techniques
- nanoparticles nucleation surface interactions
- Gold and Silver Nanoparticles Synthesis and Applications
- Archaeology and Historical Studies
- Catalysis for Biomass Conversion
- Historical, Religious, and Philosophical Studies
- Copper-based nanomaterials and applications
- Advanced Nanomaterials in Catalysis
- Zeolite Catalysis and Synthesis
- Gas Sensing Nanomaterials and Sensors
- Metal-Organic Frameworks: Synthesis and Applications
- Polyoxometalates: Synthesis and Applications
- Ancient Egypt and Archaeology
- Historical and Linguistic Studies
- Luminescence Properties of Advanced Materials
- Metal Extraction and Bioleaching
- Asymmetric Hydrogenation and Catalysis
- Carbon dioxide utilization in catalysis
Sorbonne Université
2014-2023
Laboratoire de Réactivité de Surface
2014-2023
Centre National de la Recherche Scientifique
2014-2023
Sorbonne University Abu Dhabi
2023
Délégation Paris 6
2014-2021
London Rebuilding Society
2021
Délégation Ile-de-France Villejuif
2013-2020
UPMC Health System
2013-2020
Université Paris Cité
2003-2020
Campus Condorcet
2020
The best current way to prepare Au/TiO2 catalysts is the method of deposition−precipitation with NaOH (DP NaOH) developed by Haruta and co-workers. With this method, it possible obtain small gold metal particles (2−3 nm), but corresponding loading remains rather low (∼3 wt %). main goal work investigate other methods preparation nm) a higher Au loading. It shown that anion adsorption AuCl4- (AA) does not produce than 1.5 % average particle size very (∼4 nm). Cation Au(en)23+ (CA) leads (2...
ADVERTISEMENT RETURN TO ISSUEPREVArticleNEXTPhotoluminescence and photocatalytic activity of highly dispersed titanium oxide anchored onto porous Vycor glassMasakazu Anpo, Norikazu Aikawa, Yutaka Kubokawa, Michel Che, Catherine Louis, Elio GiamelloCite this: J. Phys. Chem. 1985, 89, 23, 5017–5021Publication Date (Print):November 1, 1985Publication History Published online1 May 2002Published inissue 1 November...
Titanium oxide species anchored in the Y-zeolite cavities by an ion-exchange method exhibits a high and unique photocatalytic reactivity for direct decomposition of NO into N2, O2, N2O at 275 K with selectivity formation N2. The situ photoluminescence XAFS (XANES FT-EXAFS) investigations indicate that titanium are highly dispersed zeolite exist tetrahedral coordination. charge-transfer excited state plays significant role while catalysts involving aggregated octahedrally coordinated show to...
The nature of the Ni(II) phase formed on silica during preparation by deposition−precipitation (DP) Ni/SiO2 samples is shown to depend surface area and time deposition−precipitation. have been characterized XRD, IR, EXAFS, TPR, TEM, STEM-EDX, BET. With low for short DP (≤4 h), mainly a turbostratic nickel hydroxide with small amount 1:1 phyllosilicate. high (≤100 min), For longer (>4 h) both types silica, an ill-crystallized However, latter better crystallized area. Almost same phases were...
Gold is not so inert after all! X-ray absorption spectroscopy was used to probe the activation of O2 and its reaction with CO over an Au/Al2O3 catalyst. The catalytic activity small gold particles in oxidation arises from their ability transfer charge oxygen (see picture).
Supported Au catalysts modified by the addition of low amount Pd (Au/Pd atomic ratio ≥10), prepared either codeposition−precipitation (DP) or coimpregnation in excess solution (IES), result formation bimetallic Au−Pd particles that promote selective hydrogenation butadiene presence propene. The DP method appears more appropriate to obtain reproducible and homogeneous with smaller nanoparticles than IES method, although it does not allow one perfectly control Au/Pd ratio. Playing ratio, is...
A hydrophobic Ti doped Zr-based MOF was synthesized and used for photocatalytic H<sub>2</sub>O<sub>2</sub> production in a two-phase system (water/benzyl alcohol).
MoS2 has been investigated as a low-cost alternative to Pt in the electrochemical hydrogen evolution reaction. One of promising methods further activate is phase engineering. generally exhibits two kinds crystalline phases: hexagonal 2H and octahedral 1T phase. 1T-MoS2 much better chemical/physical properties than natural semiconductor 2H-MoS2. However, metastable its synthesis still challenge. Hybrid 1T/2H-MoS2 synthesized under relatively mild conditions, but controlling 1T/2H ratio an...
A heterostructure constructed by modification of perylenetetracarboxylic diimide (PDI) upon MOFs for visible-light-driven H 2 O production from and .
A molecular mechanism explaining the chemical phenomena that occur during preparation of silica-supported nickel catalysts by method deposition−precipitation is proposed. This takes into account fact either 1:1 phyllosilicate or hydroxide may be formed on silica deposition−precipitation, depending surface area and time, as shown in our previous paper (Burattin, P.; Che, M.; Louis, C. J. Phys. Chem. B 1997, 101, 7060). The mainly based kinetic competition between two types reactions: (i)...