• Article dans une revue

1H MAS NMR study of the coordination of hydroxyl groups generated upon adsorption of H2O and CD3OH on clean MgO surfaces

Céline Chizallet, Guylène Costentin, Hélène Lauron-Pernot, Jocelyne Maquet, Michel Che

The coordination of OH groups on MgO has been characterized by 1H MAS NMR after appropriate pre-treatment conditions to obtain surfaces free from carbonates and with a controlled degree of hydroxylation. On MgO-sol–gel sample treated at 1023 K under flowing nitrogen, hydroxylated with water and…

Applied Catalysis A : General, 2006, 307, pp.239-244. ⟨10.1016/j.apcata.2006.03.056⟩. ⟨hal-00112138⟩

• Article dans une revue

Thermodynamic brønsted basicity of clean MgO surfaces determined by their deprotonation ability: Role of Mg2+–O2 pairs

Céline Chizallet, Marie Laurence Bailly, Guylène Costentin, Hélène Lauron-Pernot, Jean Marc Krafft, Philippe Bazin, Jacques Saussey, Michel Che

The deprotonation ability of clean (i.e., carbonate- and hydroxyl-free) MgO surfaces of various morphologies towards protic molecules, such as propyne and methanol, is evaluated by following the adsorption modes and amount of dissociated species by FTIR. Photoluminescence is used to identify the…

Catalysis Today, 2006, 116, pp.196-205. ⟨10.1016/j.cattod.2006.01.030⟩. ⟨hal-00112162⟩

• Article dans une revue

Structural studies of adsorbed protein (betalactoglobulin) on natural clay (montmorillonite)

Ali Assifaoui, Lucie Huault, Cyrielle Maissiat, Chloé Roullier-Gall, Philippe Jeandet, Jerôme Hirschinger, Jesus Raya, Maguy Jaber, Jean-François Lambert, Philippe Cayot, Régis Gougeon, Camille Loupiac

In this work, the adsorption of a small globular protein (betalactoglobulin, BLG), on a natural montmorillonite clay (Mt) was investigated in acidic buffer (pH = 3). The combination of different characterization techniques such as zetametry, X-ray diffraction, transmission electronic microscopy,…

RSC Advances, 2014, 4 (105), pp.61096-61103. ⟨10.1039/C4RA11607K⟩. ⟨hal-02358967⟩

• Article dans une revue

Mechanistic Study of Cast and 3D-Printed Stainless Steel Electropolishing in Acid Media and Deep Eutectic Solvents

Chloé Rotty, Marie-Laure Doche, Audrey Mandroyan, Vincent Vivier, Jean-Yves Hihn

The mechanistic analysis of the electropolishing procedure of stainless steel (SS) was revisited using electrochemical impedance spectroscopy. Firstly, the control of the dissolution reaction by diffusion was confirmed with the linear dependence of the limiting current density as a function of the…

Journal of The Electrochemical Society, 2022, 169 (7), pp.071504. ⟨10.1149/1945-7111/ac7bb3⟩. ⟨hal-04294211⟩

• Article dans une revue

Potential Role of Inorganic Confined Environments in Prebiotic Phosphorylation

Avinash Vicholous Dass, Maguy Jaber, André Brack, Frédéric Foucher, Terence P Kee, Thomas Georgelin, Frances Westall

A concise outlook on the potential role of confinement in phosphorylation and phosphate condensation pertaining to prebiotic chemistry is presented. Inorganic confinement is a relatively uncharted domain in studies concerning prebiotic chemistry, and even more so in terms of experimentation.…

Life, 2018, 8 (1), pp.7. ⟨10.3390/life8010007⟩. ⟨hal-01733453⟩

• Article dans une revue

A Hydrothermal-Sedimentary Context for the Origin of Life

Frances Westall, Keyron Hickman-Lewis, Nancy Hinman, Pascale Gautret, Kathleen A Campbell, Jean-Gabriel Bréhéret, Frédéric Foucher, Axelle Hubert, Stephanie Sorieul, Avinash Vicholous Dass, Terence P. Kee, Thomas Georgelin, André Brack

Critical to the origin of life are the ingredients of life, of course, but also the physical and chemical conditions in which prebiotic chemical reactions can take place. These factors place constraints on the types of Hadean environment in which life could have emerged. Many locations, ranging…

Astrobiology, 2018, 18 (3), pp.259-293. ⟨10.1089/ast.2017.1680⟩. ⟨hal-01740060⟩

• Communication dans un congrès

Direct insight into the activation mechanism of Fe and Sb catalysts by operando TEM and XAS techniques

Aliou Sadia Traore, Walid Baaziz, Zhou Yong, Andrei Khodakov, Mirella Virginie, E. Marceau, Vitaly Ordomsky, Sharmin Sharna, Valérie Briois, Ovidiu Ersen

20th International Microscopy Congress, Sep 2023, Busan (Corée), South Korea. ⟨hal-04523342⟩

• Thèse

Transformations de l'isopropanol sur solides aluminiques : une approche mixte expérimentale / modélisation multi-échelle, Conversion of isopropanol on aluminic materials : a mixed experimental and multi-scale modeling approach

Kim Larmier

La valorisation de la biomasse lignocellulosique en molécules plateforme pour l'industrie chimique rend nécessaire l'adaptation des méthodes de raffinage à la transformation de composés organiques oxygénés. La déshydratation des alcools connaît dans ce contexte un fort regain d'…, The upgrading of lignocellulosic biomass into strategic molecules for the chemical industry requires the adaptation of refining procedures to the transformation of oxygenated species. In this context, the dehydration of alcohols has seen renewed interest over the last decade. The work presented…

Chimie-Physique [physics.chem-ph]. Université Pierre et Marie Curie - Paris VI, 2015. Français. ⟨NNT : 2015PA066396⟩. ⟨tel-01282594⟩

• Article dans une revue

Interplay of anions and ligands on the nature and reducibility of NiOx/Al2O3 catalysts prepared by impregnation

F. Negrier, E. Marceau, M. Che

Chemical Communications, 2002, 11, pp.1194-1195. ⟨10.1039/b202203f⟩. ⟨hal-03032214⟩

• Article dans une revue

Electronic structure investigation of biphenylene films

R. Totani, C. Grazioli, Tiantian Zhang, I. Bidermane, J. Lüder, M. de Simone, M. Coreno, B. Brena, L. Lozzi, C. Puglia

Photoelectron Spectroscopy (PS) and Near-Edge X-ray Absorption Fine Structure (NEXAFS) spectroscopy have been used to investigate the occupied and empty density of states of biphenylene films of different thicknesses, deposited onto a Cu(111) crystal. The obtained results have been compared to…

The Journal of Chemical Physics, 2017, 146 (5), pp.054705. ⟨10.1063/1.4975104⟩. ⟨hal-01512755⟩