• Article dans une revue

Surface Chirality of Gly-Pro Dipeptide Adsorbed on a Cu(110) Surface

Hervé Cruguel, Christophe Méthivier, Claire-Marie Pradier, Vincent Humblot

The adsorption of chiral Gly-Pro dipeptide on Cu(110) has been characterized by combining in situ polarization modulation infrared reflection absorption spectroscopy (PM-RAIRS) and X-ray photoelectron spectroscopy (XPS). The chemical state of the dipeptide, and its anchoring points and adsorption…

Chirality, 2015, 27 (7), pp.411-416. ⟨10.1002/chir.22445⟩. ⟨hal-01238940⟩

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Experimental and theoretical evidences of the influence of hydrogen bonding on the catalytic activity of a series of 2-hydroxy substituted quaternary ammonium salts in the styrene oxide/CO2 coupling reaction

Catarina Carvalho Rocha, Thomas Onfroy, Julien Pilmé, Audrey Denicourt-Nowicki, Alain Roucoux, Franck Launay

Among industrial applications of CO2, the formation of cyclic carbonates from epoxides offers relevant chemical potentialities. Here, various N,N-dimethyl-N-cetyl-N-(2-hydroxyethyl)ammonium salts (HEA16X) associated with different counter-anions (X−) have been investigated as catalysts of the…

Journal of Catalysis, 2016, 333, pp.29--39. ⟨10.1016/j.jcat.2015.10.014⟩. ⟨hal-01231145⟩

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Comparing Al-SBA-15 Support and Pt/Al-SBA-15 Catalyst: Changes in Al Speciation and Acidic Properties Induced by the Introduction of Pt via Aqueous Medium

Soraya Handjani, Stanislaw Dzwigaj, Juliette Blanchard, E. Marceau, Jean-Marc Krafft, Michel Che

Topics in Catalysis, 2009, 52 (4), pp.334-343. ⟨10.1007/s11244-008-9177-x⟩. ⟨hal-03032175⟩

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Investigation of the role of stabilizingagentmolecules in the heterogeneousnucleation of rhodium(0) nanoparticles onto Al-SBA-15 supports

Rita Sassine, E. Bilé-Guyonnet, Thomas Onfroy, Audrey Denicourt-Nowicki, Alain Roucoux, Franck Launay

Interactions of stabilizingagentmolecules (HEA16Cl) with Rh(0) particles and mesoporous aluminosilic supports were studied in rhodium(0) catalysts obtained by heterogeneousnucleation. HEA16Cl/Rh(0) proximity was indirectly demonstrated by monitoring the CO coverage of metal surface using FTIR…

Studies in Surface Science and Catalysis, 2010, 175, pp.145-152. ⟨10.1016/S0167-2991(10)75018-7⟩. ⟨hal-00759090⟩

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Intensity-energy response function of Al/Cr-K α x-ray photoemission instruments: An inter-laboratory study

David Alamarguy, Damien Aureau, Thierry Conard, Nicolas Gauthier, Frédéric Georgi, Stéphane Guilet, Samar Hajjar-Garreau, Olivier Heintz, Guillaume Monier, Christophe Méthivier, Hervé Montigaud, Samantha Soulé, Olivier Renault, Rémi Lazzari

The question of the intensity-energy response of photoemission spectrometers has been approached through a round-robin involving 13 instruments working with low (Al/Mg-K) and high (Cr-K) energy photon sources. An algorithm based on the analysis of inelastic background previously proposed [S. Guilet…

Journal of Electron Spectroscopy and Related Phenomena, 2024, 276, pp.147486. ⟨10.1016/j.elspec.2024.147486⟩. ⟨hal-04722306⟩

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Going through the wine fining: Intimate dialogue between organics and clays

Pollyana Trigueiro, Silvia Pedetti, Baptiste Rigaud, Sebastien Balme, Jean-Marc Janot, Ieda M G Dos Santos, Régis Gougeon, Maria G Fonseca, Thomas Georgelin, Maguy Jaber

Wine chemistry inspires and challenges with its complexity and intriguing composition. In this context, the composites based on the use of a model protein, a polyphenol of interest and montmorillonite in a model hydroalcoholic solution have been studied. A set of experimental characterization…

Colloids and Surfaces B: Biointerfaces, 2018, 166, pp.79 - 88. ⟨10.1016/j.colsurfb.2018.02.060⟩. ⟨hal-01744266⟩

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Single-site and nano-confined photocatalysts designed in porous materials for environmental uses and solar fuels

Hiromi Yamashita, Kohsuke Mori, Yasutaka Kuwahara, Takashi Kamegawa, Meicheng Wen, Priyanka Verma, Michel Che

Silica-based micro-, meso-, macro-porous materials offer attractive routes for designing single-site photocatalysts, supporting semiconducting nanoparticles, anchoring light-responsive metal complexes, and encapsulating metal nanoparticles to drive photochemical reactions by taking advantage of…

Chemical Society Reviews, 2018, 47 (22), pp.8072-8096. ⟨10.1039/C8CS00341F⟩. ⟨hal-01959036⟩

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Elucidation of the low coverage chiral adsorption assembly of L-lysine on Cu(110) surface: A theoretical study

Frederik Tielens, Vincent Humblot, Claire-Marie Pradier

The adsorption of L-lysine on Cu(110) surface was studied using periodic DFT. The geometry is discussed in terms of the molecular electrostatic interactions, and electronic properties such as DOS. An STM image was simulated and compared with our recently obtained experimental results. Compelling…

Surface Science : A Journal Devoted to the Physics and Chemistry of Interfaces, 2008, 602 (5), pp.1032-1039. ⟨10.1016/j.susc.2007.12.033⟩. ⟨hal-01361368⟩

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On the detrimental effect of tungstates on the n-C10-SCR of NOx on Ag/g-Al2O3

Juliette Blanchard, Rachel P. Doherty, Hiu Ying Law, Christophe Méthivier, Cyril Thomas

The influence of the addition of W to Al2O3, promoted or not by Ag, on the n-C10 SCR of NOx was investigated. It was shown that the addition of W was detrimental to the n-C10 SCR reaction. Based on the NOx- TPD, the XPS and the n-C10 SCR measurements, it was concluded that the loss of activity…

Top. Catal., 2013, Springer Science+Business Media New York 2013, pp.134-139. ⟨10.1007/s11244-013-9942-3⟩. ⟨hal-01121204⟩

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Gold Grafted to Mesoporous Silica Surfaces, a Molecular Picture

A. Wojtaszek, I. Sobczak, M. Ziolek, Frederik Tielens

The adsorption of HAuCl(4), the typical precursor for gold grafting on metal oxide surfaces, is investigated on amorphous silica support. The adsorption of the precursor is investigated as a function of its chlorinated form, depending on the pH, using periodic DFT. The results are supported with…

Journal of Physical Chemistry C, 2009, 113 (31), pp.13855-13859. ⟨10.1021/jp9036815⟩. ⟨hal-01361364⟩