• Article dans une revue

Origins of Life and Molecular Information: Selectivity in Mineral Surface-Induced Prebiotic Amino Acid Polymerization

Lise Bedoin, Sandra Alves, Jean-François Lambert

ACS Earth and Space Chemistry, 2020, acsearthspacechem.0c00183. ⟨10.1021/acsearthspacechem.0c00183⟩. ⟨hal-03133031⟩

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Triple structuration and enhanced corrosion performance of 316L in Laser-Powder Bed Fusion

Alexis Fouchereau, Hicham Maskrot, Fernando Lomello, Sophie Bosonnet, Oumaïma Gharbi, Benoit Gwinner, Pierre Laghoutaris, Frédéric Schuster, Vincent Vivier, Beatriz Puga

This work focuses on the influence of the feedstock powders on the microstructural properties and corrosion behavior of 316L stainless steel (SS) produced by laser powder bed fusion (L-PBF) from two different suppliers. Microstructural investigations conducted after additive manufacturing reveal…

Corrosion Science, 2024, 228, pp.111830. ⟨10.1016/j.corsci.2024.111830⟩. ⟨cea-04602059⟩

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Binding mechanism of oligopeptides on solid surface: assessing the significance of single-molecule approach

Joanne Lê-Chesnais, Marie Steffenhagen, Christophe Méthivier, Dominique Costa, Daniela Rodriguez, Jean-François Lambert, Emmanuel Maisonhaute, Jessem Landoulsi

This paper addresses the complementarity and potential disparities between single-molecule and ensemble-average approaches to probe the binding mechanism of oligopeptides on inorganic solids. Specifically, we explore the peptide/gold interface owing to its significance in various topics and its…

Nanoscale, 2025, 17, pp.3460-3477. ⟨10.1039/d4nr04474f⟩. ⟨hal-04930701⟩

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Skeletal Au prepared from Au-Zr amorphous alloys with controlled atomic compositions and arrangement for active oxidation of benzyl alcohol

Ai Nozaki, Yasutomo Tanihara, Yasutaka Kuwahara, Tetsutaro Ohmichi, Kohsuke Mori, Takeshi Nagase, Hiroyuki Y. Yasuda, Christophe Calers, Catherine Louis, Hiromi Yamashita

Skeletal (nanoporous) gold catalysts were prepared from Au–Zr amorphous alloys by immersion in HF solution to extract Zr moieties. The catalytic performance of the skeletal Au catalyst for the oxidation of benzyl alcohol to benzaldehyde was examined using O2 as an oxidant. The amount of…

Journal of Materials Chemistry A, 2016, 4 (21), pp.8458 - 8465. ⟨10.1039/C6TA01963C⟩. ⟨hal-01548324⟩

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Converting silicon nanoparticles into nickel iron silicide nanocrystals within molten salts for water oxidation electrocatalysis

Yang Song, Sandra Casale, Antoine Miche, David Montero, Christel Laberty-Robert, David Portehault

We synthesize metal silicide electrocatalysts for water oxidation, by using the high reactivity of silicon nanoparticles and the unique stability and low vapor pressure of molten salt solvents. We can then perform liquid-phase synthesis under vacuum at 300-400 C. This strategy yields FeSi, Ni 2 Si…

Journal of Materials Chemistry A, 2022, 10 (3), pp.1350-1358. ⟨10.1039/D1TA08097K⟩. ⟨hal-03537470⟩

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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⟩

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Characterization of Supported Vanadium Oxide Species on Silica: A Periodic DFT Investigation

Mazharul M. Islam, Dominique Costa, Monica Calatayud, Frederik Tielens

The geometry, energetic, and spectroscopic properties of molecular structures of silica-supported vanadium oxide catalysts are studied using periodic density functional calculations. Isolated vanadia units deposed on amorphous silica are modeled at low coverage, 0.44 atoms nm(-2). The models are…

Journal of Physical Chemistry C, 2009, 113 (24), pp.10740-10746. ⟨10.1021/jp902818m⟩. ⟨hal-01361362⟩

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Recent development of heterogeneous catalysis in ring-opening, biocatalysis, and selective partial oxidation reactions on metal oxides

Ioana Fechete, Jacques C. Védrine

In this review article, we analyze the state of the art and future developments in three important domains of heterogeneous catalysis, namely ring opening, biocatalysis, and partial oxidation on metal oxides. After recollecting the scientific bases of each domain, we consider several examples, some…

Comptes Rendus. Chimie, 2018, 21 (3-4), pp.408 - 418. ⟨10.1016/j.crci.2017.12.005⟩. ⟨hal-01761420⟩

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Exploring the reactivity of mixed omega-functionalized undecanethiol self-assembled monolayers - A DFT study

Frederik Tielens, Vincent Humblot, Claire-Marie Pradier

The reactive sites of self-assembled monolayers (SAM) formed by substituted thiolalkyl chains have been predicted in the case of the pure mercaptoundecane acid, for the pure mercaptoundecane alcohol, and the mixed 1:1 SAMs. The differences in reactivity between the different SAM domains (pure and…

International Journal of Quantum Chemistry, 2008, 108 (10), pp.1792-1795. ⟨10.1002/qua.21600⟩. ⟨hal-01361371⟩

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Dynamics of Hydration in Vanadia-Titania Catalysts at Low Loading: A Theoretical and Experimental Study

Anna E. Lewandowska, Monica Catalayud, Frederik Tielens, Miguel A. Banares

The hydration process of dehydrated vanadia-titania catalysts at low loading is investigated using periodic DFT calculations. We focus on the early stages of the hydration process of the vanadia-titania in order to shed light onto the structural and dynamical changes occurring at the molecular…

Journal of Physical Chemistry C, 2011, 115, pp.24133-24142. ⟨10.1021/jp204726b⟩. ⟨hal-00669737⟩