• 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⟩

• Article dans une revue

Phase selective synthesis of nickel silicide nanocrystals in molten salts for electrocatalysis of the oxygen evolution reaction

Ram Kumar, Mounib Bahri, Yang Song, Francisco Gonell, Cyril Thomas, Ovidiu Ersen, Clément Sanchez, Christel Laberty-Robert, David Portehault

We report phase selective synthesis of intermetallic nickel silicide nanocrystals in inorganic molten salts. NiSi and Ni2Si nanocrystals are obtained by reacting a nickel (II) salt and sodium silicide Na4Si4 in the molten LiI-KI inorganic eutectic salt mixture. We report that nickel silicide…

Nanoscale, 2020, 12 (28), pp.15209-15213. ⟨10.1039/D0NR04284F⟩. ⟨hal-02923099⟩

• Article dans une revue

Catalytic behavior of copper–amine complex supported on mesoporous silica SBA-15 toward mono-Aza-Michael addition: role of amine groups

Aboubakr Hakiki, Riad Mustpha Kerbadou, Bouhadjar Boukoussa, Hadjira Habib Zahmani, Franck Launay, Alain Pailleret, Françoise Pillier, Salih Hacini, Abdelkader Bengueddach, Rachida Hamacha

This work concerns the preparation and modification of mesoporous silica SBA-15 with different amine-copper complexes in order to study their impact on the catalytic behavior via Aza Michael addition. Firstly, SBA-15 was prepared hydrothermally, then functionalized by mono-, di- and tri-amine, and…

Journal of Inorganic and Organometallic Polymers and Materials, 2019, 29 (5), pp.1773-1784. ⟨10.1007/s10904-019-01139-7⟩. ⟨hal-02280716⟩

• Article dans une revue

Speciation of Ruthenium as a Reduction Promoter of Silica-Supported Co Catalysts: A Time-Resolved in Situ XAS Investigation

Jingping Hong, Eric Marceau, Andrei Y. Khodakov, Lucia Gaberová, Anne Griboval-Constant, Jean-Sébastien Girardon, Camille La Fontaine, Valérie Briois

Complete reduction of the metal phase in cobalt-containing catalysts is often difficult to reach and can be promoted by a small amount of noble metals. Because these costly promoters are introduced in a very low quantity, their speciation and their chemical interaction with cobalt have seldom been…

ACS Catalysis, 2015, 5 (2), pp.1273-1282. ⟨10.1021/cs501799p⟩. ⟨hal-01120477⟩

• Communication dans un congrès

Nouvelles biocathodes graphite/nitrure de carbone amorphe/laccase pour la réduction de l'oxygène par transfert électronique direct

Achraft Blout, Alain Pailleret, Hubert Perrot, Claude Jolivalt

Les enzymes constituent une alternative intéressante aux catalyseurs métalliques car elles possèdent une meilleure sélectivité et des performances catalytiques souvent plus élevées. Elles peuvent être utilisées dans différents types de dispositifs électrochimiques comme les piles à combustible1.…

Journées d'Electrochimie 2017 (JE 2017), Société Chimique de France (SCF), Jun 2017, Bordeaux, France. ⟨hal-03946920⟩

• Article dans une revue

Influence of Metal Salts Addition on Physical and Electrochemical Properties of Ethyl and Propylammonium Nitrate

David Ausín, José Trenzado, Mireille Turmine, Luis Varela, Oscar Cabeza, Elisa González Romero, Luisa Segade

In this work, we deepen in the characterization of two protic ionic liquids (PILs), ethylammonium nitrate (EAN) and propylammonium nitrate (PAN). With this aim, we determined the influence of inorganic nitrate salts addition on their physical properties and their electrochemical potential window (…

International Journal of Molecular Sciences, 2022, 23 (24), pp.16040. ⟨10.3390/ijms232416040⟩. ⟨hal-03919970⟩

• Communication dans un congrès

Mechanochemical preparation of nanostructured mixed oxide catalysts for selective oxidation reactions

Sabine Valange, Ronan Behling, Gregory Chatel, Franck Launay

4th International Conference on Advanced Complex Inorganic Nanomaterials, Jul 2018, Namur, Belgium. ⟨hal-02002188⟩

• Communication dans un congrès

Mechanochemical top-down preparation of active nanomaterials for the selective oxidation of lignin model compounds

Ronan Behling, Sabine Valange, Gregory Chatel, Franck Launay

3rd EuCheMS on Green and Sustainable Chemistry, Sep 2017, York, United Kingdom. ⟨hal-01940082⟩

• Communication dans un congrès

Photochemistry of organic molecules in the Solar System: experimental studies outside the International Space Station. The cases of glycine, and nucleobases

Hervé Cottin, Giovanni Strazzulla, M. Dobrijevic, Frances Westall, Gaelle Coussot, A. Le Postollec, Nicolas Fray, Didier Chaput, Richard C. Quinn, . Andrew Mattioda, Giuseppe Baratta, Mario Accolla, Thomas Georgelin, Fabien Stalport, Laura Rouquette, Cyril Szopa, Kafila Saiagh, Jodie Bellila, Katia Grira, Andreas Elsaesser, Nathalie Carrasco, Avinash-Vicholous Dass, M. E. Palumbo

Solar UV radiation is a major source of energy for initiating chemical evolution towards complex organic structures, but it can also photo-dissociate even the most complex molecules. Thus, solar UV can erase the organic traces of past life at the surface of planets, such as Mars, destroy organic…

42nd COSPAR Scientific Assembly, Jul 2018, Pasadena, Californie, United States. ⟨hal-01901917⟩

• 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⟩