A5052729202- Catalytic Processes in Materials Science
- Catalysis and Oxidation Reactions
- Catalysis and Hydrodesulfurization Studies
- Industrial Gas Emission Control
- Magnetic and transport properties of perovskites and related materials
- Ammonia Synthesis and Nitrogen Reduction
- Gas Sensing Nanomaterials and Sensors
- Nanomaterials for catalytic reactions
- Electrocatalysts for Energy Conversion
- Luminescence Properties of Advanced Materials
- Catalysts for Methane Reforming
- Mesoporous Materials and Catalysis
- Zeolite Catalysis and Synthesis
- Water Quality Monitoring and Analysis
- Oxidative Organic Chemistry Reactions
- Vehicle emissions and performance
- Chemical Synthesis and Reactions
- Asymmetric Hydrogenation and Catalysis
- Layered Double Hydroxides Synthesis and Applications
- Thermal and Kinetic Analysis
- Laser-induced spectroscopy and plasma
- Carbon dioxide utilization in catalysis
- Injection Molding Process and Properties
- Metal Extraction and Bioleaching
- Energetic Materials and Combustion
Unité de catalyse et de chimie du solide de Lille
2015-2024
Université de Lille
2013-2024
Centre National de la Recherche Scientifique
2013-2024
École Centrale de Lille
2016-2024
Université d'Artois
2016-2024
Catalyse
2013-2023
Institut Lumière Matière
2023
Université Claude Bernard Lyon 1
2023
École Nationale Supérieure de Chimie de Lille
2010-2020
Université Lille Nord de France
2010-2013
The effect of acid treatment in mixed MnOx–CeO2 samples has been investigated the catalytic total oxidation formaldehyde. no on textural and redox properties materials when Mn is stabilized a solid solution (Mn content below 50%). However, these were found to be highly altered by solubility limit ceria was exceeded above This enabled access primary porosity oxidized manganese species higher state via dismutation reaction. As result, activity pure oxide, after chemical activation,...
Pt single atoms, stable on alumina under O<sub>2</sub>, form mobile clusters H<sub>2</sub>, due to adsorbate- and nuclearity-dependent metal-support interaction.
Experimental IR spectra of carbon monoxide adsorbed on a series Mo/Al2O3, CoMo/Al2O3, and NiMo/Al2O3 sulfided catalysts have been compared to ab initio DFT calculations CO adsorption CoMo NiMo model surfaces. This approach allows the main features sulfide phase be assigned with an uncertainty 15 cm(-1). On system, band at 2070 cm(-1) is specific promotion by Co interacting either atom or Mo adjacent atom. Ni centers promoted leads high-wavenumber approximately 2120 that strongly overlaps...
Grafting of [Ln(BH4)3(THF)3] (Ln = La, Nd) onto silica affords materials containing well-identified bis(borohydride) surface species. The neodymium-decorated converts the β-butyrolactone monomer into highly isotactic poly(β-hydroxybutyrate). Under similar conditions, molecular precursor gives rise to an atactic polymer.
Colloidal suspensions of rhodium nanoparticles have been easily prepared in aqueous solution by chemical reduction the precursor RhCl3·3H2O presence surfactant N,N-dimethyl-N-cetyl-N-(2-hydroxyethyl)ammonium chloride (HEA16Cl) and further used to immobilize on silica simple impregnation. The obtained silica-supported investigated adapted characterization methods such as transmission electron microscopy X-ray photoelectron spectroscopy. A particle size increase from 2.4 5 nm after...
Stability and deactivation phenomena are of utmost importance for metal nanocatalysts from both fundamental industrial points view. The presence small amounts sulfur at ppm ppb levels in the synthesis gas produced fossil renewable sources (e.g., biomass, coal) is a major reason nickel catalysts carbon monoxide hydrogenation. This paper addresses reaction pathways mechanisms alumina-supported methane pure syngas containing sulfur. A combination SSITKA operando FTIR indicative reversible...
The understanding and quantification of the CO adsorption modes strength on ultradispersed platinum catalysts supported γ-Al2O3 is prominent importance for analytic catalytic purposes. We report a multiscale experimental (AEIR, CO-TPD) theoretical approach to provide vibrational properties, enthalpies, desorption behaviors. First principles calculations Pt13(CO)m/γ-Al2O3 Pt(111) surface models (using various exchange-correlation functionals) complementary view approches. Adsorption...
Among different types of Fe-exchanged zeolites, Fe-BEA exhibits very promising surface properties for developing efficient urea or NH3-SCR systems. In this work, dedicated experimental and kinetic modeling studies were performed in order to elucidate mechanistic aspects related NH3 storage release on these catalysts. A series adsorption desorption experiments over both H- BEA taking into account a broad range operating conditions. Coupling FTIR spectroscopy, adspecies characterized. gaseous...
We report for the first time use of an amorphous oxide catalyst selective oxidation methanol in gas phase, leading at 553 K to production dimethoxymethane with a selectivity as high 90% conversion (68%).