• Article dans une revue

Bi2O3, BiVO4, and Bi2WO6: Impact of Surface Properties on Photocatalytic Activity under Visible Light

Tamar Saison, Nicolas Chemin, Corinne Chaneac, Olivier Durupthy, Valerie Ruaux, Laurence Mariey, Françoise Mauge, Patricia Beaunier, Jean-Pierre Jolivet

Bismuth-based oxides have attractive photocatalytic properties under visible light. A better understanding of the origin of that good photocatalytic activity should allow its control and its optimization. In this Article, we have studied the impact of surface properties on photocatalytic activity…

Journal of Physical Chemistry C, 2011, 115 (13), pp.5657-5666. ⟨10.1021/jp109134z⟩. ⟨hal-01840373⟩

• Article dans une revue

High pressures pathway toward boron-based nanostructured solids

Remi Grosjean, Yann Le Godec, Simon Delacroix, Guillaume Gouget, Patricia Beaunier, Ovidiu Ersen, Dris Ihiawakrim, Oleksandr O Kurakevych, Corinne Chanéac, David Portehault

Inorganic nanocomposites made of an inorganic matrix containing nanoparticle inclusions provide materials of advanced mechanical, magnetic, electrical properties and multifunctionality. The range of compounds that can be implemented in nanocomposites is still narrow and new preparation methods are…

Dalton Transactions, 2018, 47 (23), pp.7634-7639. ⟨10.1039/C8DT00932E⟩. ⟨hal-01883827⟩

• Article dans une revue

Mesocellular silica foam-based Ni catalysts for dry reforming of CH4 (by CO2)

Oscar Daoura, Marie-Nour Kaydouh, Nissrine El-Hassan, Pascale Massiani, Franck Launay, Maya Boutros

Journal of CO2 Utilization, 2018, 24, pp.112-119. ⟨10.1016/j.jcou.2017.12.010⟩. ⟨hal-02414803⟩

• Article dans une revue

Decoding anionic organization of hydroxide-fluorides in a diaspore-type network

Helies Hyrondelle, Matthew Suchomel, Vincent Rodriguez, Étienne Durand, Yannick Millot, Mathieu Duttine, Alain Demourgues

The diaspore-type crystalline structure is historically well-known in mineralogy, but it has also been widely studied for various applications in the field of catalysis, electrocatalysis, and batteries. However, once two anions of similar ionic size but different electronegativity, such as F– and…

Inorganic Chemistry, 2025, 64 (4), pp.1677-1689. ⟨10.1021/acs.inorgchem.4c03794⟩. ⟨hal-04939898⟩

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Effect of Coverage and Defects on the Adsorption of Propanethiol on Au(111) Surface: A Theoretical Study

Noelia B. Luque, Elizabeth Santos, Juan Andres, Frederik Tielens

Periodic density functional calculations have been carried out to investigate both the thiol adsorption on Au(111) surface and the reaction mechanism for the formation of the self-assembled monolayers, taking propanethiol as a representative example. The effect of coverage and surface defects (…

Langmuir, 2011, 27, pp.14514-14521. ⟨10.1021/la202861s⟩. ⟨hal-00670100⟩

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Efficiency of Polyoxometalate-Based Mesoporous Hybrids as Covalently Anchored Catalysts

Faiza Bentaleb, Ourania Makrygenni, Dalil Brouri, Cristina Coelho Diogo, Ahmad Mehdi, Anna Proust, Franck Launay, Richard Villanneau

Polyoxometalate (POM) hybrids have been covalently immobilized through the formation of amide bonds on several types of mesoporous silica. This work allows the comparison of three POM-based mesoporous systems, obtained with three different silica supports in which either the organic functions of…

Inorganic Chemistry, 2015, 54 (15), pp.7607-7616. ⟨10.1021/acs.inorgchem.5b01216⟩. ⟨hal-02143856⟩

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Calcium phosphate mineralization through homogenous enzymatic catalysis: Investigation of the early stages

E. Colaço, D. Brouri, C. Méthivier, L. Valentin, F. Oudet, K. El Kirat, C. Guibert, J. Landoulsi

Hypothesis : The crystallization of calcium phosphate (CaP) is a ubiquitous process that occurs in several mineralized tissues and involves a variety of biochemical and chemical reactions. This issue has been hitherto continuously studied from supersaturated solutions (chemical procedure), i.e. by…

Journal of Colloid and Interface Science, 2020, 565, pp.43 - 54. ⟨10.1016/j.jcis.2019.12.097⟩. ⟨hal-03489538⟩

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Observations of fast-moving features in the debris disk of AU Mic on a three-year timescale: Confirmation and new discoveries

A. Boccaletti, E. Sezestre, A.-M. Lagrange, P. Thebault, R. Gratton, M. Langlois, C. Thalmann, M. Janson, P. Delorme, J.-C. Augereau, G. Schneider, J. Milli, C. Grady, J. H Debes, Q. Kral, J. Olofsson, J. Carson, A. Maire, T. Henning, J. Wisniewski, J. Schlieder, C. Dominik, S. Desidera, C. Ginski, D. Hines, F. Menard, D. Mouillet, N. Pawellek, A. Vigan, Erwan M Lagadec, H. Avenhaus, J.-L. Beuzit, B. Biller, M. Bonavita, M. Bonnefoy, W. Brandner, F. Cantalloube, G. Chauvin, A. Cheetham, M. Cudel, C. Gry, S. Daemgen, M. Feldt, R. Galicher, J. Girard, J. Hagelberg, P. Janin-Potiron, M. Kasper, H. Le Coroller, D. Mesa, S. Peretti, C. Perrot, M. Samland, E. Sissa, F. Wildi, A. Zurlo, S. Rochat, E. Stadler, L. Gluck, A. Origné, M. Llored, P. Baudoz, G. Rousset, P. Martinez, F Rigal

Context. The nearby and young M star AU Mic is surrounded by a debris disk in which we previously identified a series of large-scale arch-like structures that have never been seen before in any other debris disk and that move outward at high velocities.Aims. We initiated a monitoring program with…

Astronomy & Astrophysics - A&A, 2018, 614, pp.A52. ⟨10.1051/0004-6361/201732462⟩. ⟨hal-02301370⟩

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Zn-Cu Alloy Nanofoams as Efficient Catalysts for the Reduction of CO 2 to Syngas Mixtures with a Potential-Independent H 2 /CO Ratio

Sarah Lamaison, David Wakerley, David Montero, Gwenaëlle Rousse, Dario Taverna, Domitille Giaume, Dimitri Mercier, Juliette Blanchard, Huan Ngoc Tran, Marc Fontecave, Marc Mougel

Alloying strategies are commonly used to design electrocatalysts that take on properties of their constituent elements. Herein, we explore the use of such a strategy to develop Zn-Cu alloyed electrodes with unique hierarchical porosity and tunable selectivity for CO2 vs. H + reduction. By varying…

ChemSusChem, 2019, 12 (2), pp.511-517. ⟨10.1002/cssc.201802287⟩. ⟨hal-02182388⟩

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Defect-related multicolour emissions in ZnO tetrapods: from violet, over green to yellow

Miao Zhang, Frédéric Averseng, Francia Haque, Patrizia Borghetti, Jean-Marc Krafft, Benoît Baptiste, Guylène Costentin, Slavica Stankic

The nature of defects in ZnO smoke was studied at different stages of the materials' history by combining photoluminescence (PL) and electron paramagnetic resonance (EPR) spectroscopies. In contrast to studies previously reported on ZnO nanopowders, high vacuum conditions (P < 10-5 mbar)…

Nanoscale, 2019, 11 (11), pp.5102-5115. ⟨10.1039/C8NR09998G⟩. ⟨hal-02169364⟩