Laboratoire de réactivité de surface

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  • Article dans une revue

Insights into the influence of the Ag loading on Al2O3 in the H2-assisted C3H6-SCR of NOx

Tesnim Chaieb, Laurent Delannoy, Guylène Costentin, Catherine Louis, Sandra Casale, Ruth L. Chantry, Z.Y. Li, Cyril Thomas

The addition of H2 has been reported to promote drastically the selective catalytic reduction of NOx by hydrocarbons (HC-SCR). Yet, the influence of the Ag loading on the H2-promoted HC-SCR has been the subject of a very limited number of investigations. The H2-HC-SCR earlier studies reported…

Applied Catalysis B: Environmental, 2014, 156-157, pp.192-201. ⟨10.1016/j.apcatb.2014.03.025⟩. ⟨hal-00979536⟩

  • Article dans une revue

Cation redistribution upon dehydration of Na 58 Y faujasite zeolite: a joint neutron diffraction and molecular simulation study

Wilfried Louisfrema, Benjamin Rotenberg, Florence Porcher, Jean-Louis Paillaud, Pascale Massiani, Anne Boutin

Using neutron scattering and Monte Carlo simulation, we investigate the distribution of cations in Na58Y faujasite upon (de)hydration. We introduce a new method for the assignment of cations to specific sites in molecular simulations from their local environment. This allows us to bypass the need…

Molecular Simulation, 2015, 41 (16-17), pp.1371-1378. ⟨10.1080/08927022.2015.1027889⟩. ⟨hal-01284815⟩

  • Communication dans un congrès

Plasmonic catalysis for the Suzuki–Miyaura cross-coupling reaction using palladium nanoflowers

Iyad Sarhid, Ibrahim Abdellah, Cyril Martini, Vincent Huc, Diana Dragoe, Patricia Beaunier, Isabelle Lampre, Hynd Remita

Plasmonic catalysis enables the realization of reactions using solar light with less energy and time consumption.

4th International Workshop on Metallic Nano-Objects, MNO 2018, Nov 2018, Lyon, France. ⟨hal-04294343⟩

  • Article dans une revue

Co-grafting of amino-poly(ethylene glycol) and Magainin I on a TiO2 surface: tests of antifouling and antibacterial activities.

Jessie Peyre, V. Humblot, C. Méthivier, J.M. Berjeaud, C.-M. Pradier

An antimicrobial peptide, Magainin I (Mag), was grafted to a titanium oxide surface, via an antiadhesive poly(ethylene glycol) (PEG) cross-linker. The latter plays a 2-fold part, being antiadhesive, and enabling the covalent immobilization of the peptide. The functionalization was characterized at…

Journal of Physical Chemistry B, 2012, 116, pp.13839-47. ⟨10.1021/jp305597y⟩. ⟨hal-00808576⟩

  • Article dans une revue

On an additional promoting role of hydrogen in the H2-assistedC3H6-SCR of NOxon Ag/Al2O3: A lowering of the temperature offormation-decomposition of the organo-NOxintermediates?

Cyril Thomas

tThe addition of minute amounts of H2to the selective catalytic reduction of nitrogen oxides (NOx)by hydrocarbons (HC-SCR) has been shown to promote the reduction of NOxat remarkably lowerreaction temperatures on Ag/Al2O3catalysts. Despite extensive investigations, the origin of this remark-able…

Applied Catalysis B: Environmental, 2014, 162, pp.454-462. ⟨10.1016/j.apcatb.2014.07.021⟩. ⟨hal-01064983⟩

  • Article dans une revue

Optimization and Antibacterial Response of N-Halamine Coatings Based on Polydopamine

Nadia Nazi, Adeline Marguier, Catherine Debiemme-Chouvy, Vincent Humblot

RessouDue to the ability of microorganisms to first adhere to a material surface and then to lead to the formation of a biofilm, it is essential to develop surfaces that have antimicrobial properties. It is well known that N-halamine coatings allow us to prevent or minimize such phenomena. In the…

Colloids and Interfaces, 2022, 6 (1), pp.9 (20). ⟨10.3390/colloids6010009⟩. ⟨hal-03693047⟩

  • Article dans une revue

Heterogeneous partial oxidation catalysis on metal oxides

Jacques C. Védrine, Ioana Fechete

This review paper presents an overview of heterogeneous selective ammoxidation and oxidative dehydrogenation (ODH) of light alkanes, particularly of ethane. The conversion of ethane to ethene is in great demand in the domestic and worldwide chemical industry. The review has been voluntarily…

Comptes Rendus. Chimie, 2016, 19 (10), pp.1203-1225. ⟨10.1016/j.crci.2015.09.021⟩. ⟨hal-01289317⟩

  • Article dans une revue

General and Prospective Views on Oxidation Reactions in Heterogeneous Catalysis

Sabine Valange, Jacques C. Védrine

In this review paper, we have assembled the main characteristics of partial oxidation reactions (oxidative dehydrogenation and selective oxidation to olefins or oxygenates, as aldehydes and carboxylic acids and nitriles), as well as total oxidation, particularly for depollution, environmental…

Catalysts, 2018, 8 (10), pp.483. ⟨10.3390/catal8100483⟩. ⟨hal-01926781⟩

  • Article dans une revue

Building the uracil skeleton in primitive ponds at the origins of life: carbamoylation of aspartic acid

Louis Ter-Ovanessian, Jean-François Lambert, Marie-Christine Maurel

Abstract A large set of nucleobases and amino acids is found in meteorites, implying that several chemical reservoirs are present in the solar system. The “geochemical continuity” hypothesis explores how protometabolic paths developed from so-called “bricks” in an enzyme-free prebiotic world and…

Scientific Reports, 2022, 12 (1), pp.19178. ⟨10.1038/s41598-022-21272-7⟩. ⟨hal-03848150⟩

  • Article dans une revue

Self-Organization and/or Nanocrystallinity of Co Nanocrystals Effects on the Oxidation Process Using High-Energy Electron Beam

Ana Cazacu, Claudio Larosa, Patricia Beaunier, Guillaume Laurent, Paolo Nanni, Liliana Mitoseriu, Isabelle Lisiecki

We report the enhanced stability of Co nanocrystals (NCs) when they are highly ordered at both nanometer and micrometer scales. We show for the first time that both the crystalline structure of Co nanoparticles (NPs) and their 2D hexagonal organization have a significant impact on the oxidation…

Advanced Functional Materials, 2014, 24 (1), pp.164-170. ⟨10.1002/adfm.201301465⟩. ⟨hal-03744254⟩