• Article dans une revue

Synthesis of texturally biphasic mesoporous carbon-silica composites and carbons

Cristiam F. Santa, Maguy Jaber, Jean L. Guth, Ligia Sierra

We report a new synthesis of texturally biphasic carbon-silica composites and carbons that exhibit high surface areas (up to 1500 m2 g 1), pore volumes (up to 1.9 cm3 g 1) and mesopores (4.6-6.9 nm). The composite materials have ordered mesoporous carbon domains embedded in a disordered mesoporous…

Microporous and Mesoporous Materials, 2013, 173, pp.53-63. ⟨10.1016/j.micromeso.2013.01.033⟩. ⟨hal-00836323⟩

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Role of active components of an Ag/Al2O3/cordierite catalyst in selective reduction of NO by ethanol

N. A. Popovich, P. I. Kiriienko, S. Solov’ev, S. Orlik, S. Dzwigaj

We show that the activity of silver/aluminum oxide catalysts in selective reduction of nitrogen oxides by ethanol increases as the Al2O3 content increases, and is determined by the optimal silver content for which Ag + cations and Ag n nanoclusters form on the Al2O3 surface. The role of silver in…

Theoretical and Experimental Chemistry, 2012, 48 (4), pp.258 - 264. ⟨10.1007/s11237-012-9270-x⟩. ⟨hal-00805714⟩

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Reshaping Dynamics of Gold Nanoparticles under H2 and O2 at Atmospheric Pressure

Adrian Chmielewski, Jun Meng, Beien Zhu, Yi Gao, Hazar Guesmi, Hélène Prunier, Damien Alloyeau, Guillaume Wang, Catherine Louis, Laurent Delannoy, Pavel Afanasiev, Christian Ricolleau, Jaysen Nelayah

Despite intensive research efforts, the nature of the active sites for O2 and H2 adsorption/dissociation by supported gold nanoparticles (NPs) is still an unresolved issue in heterogeneous catalysis. This stems from the absence of a clear picture of the structural evolution of Au NPs at near…

ACS Nano, 2019, 13 (2), pp.2024-2033. ⟨10.1021/acsnano.8b08530⟩. ⟨hal-02019080⟩

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Palladium loaded BEA zeolites as efficient catalysts for aqueous-phase diclofenac hydrodechlorination

Bartosz Zawadzki, Emil Kowalewski, Monika Asztemborska, Krzysztof Matus, Sandra Casale, Stanislaw Dzwigaj, Anna Śrębowata

Herein the catalytic performance of two 1 wt% Pd loaded BEA zeolites with Si/Al ratio of 19 and 1300 were investigated for the aqueous phase hydrodechlorination (HDC) of diclofenac, the latter compound a prevalent nonsteroidal anti-inflammatory drug. 1 wt%Pd/SiO2 and 1 wt%Pd/Al2O3 being commonly…

Catalysis Communications, 2020, 145, pp.106113. ⟨10.1016/j.catcom.2020.106113⟩. ⟨hal-03014314⟩

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A High-Pressure, High-Temperature Flow Reactor Simulating the Hadean Earth Environment, with Application to the Pressure Dependence of the Cleavage of Avocado Viroid Hammerhead Ribozyme

Kunio Kawamura, Mari Ogawa, Noriko Konagaya, Yoshimi Maruoka, Jean-François Lambert, Louis M. P. Ter-Ovanessian, Jacques Vergne, Guy Hervé, Marie-Christine Maurel

The RNA world hypothesis suggests that chemical networks consisting of functional RNA molecules could have constructed a primitive life-like system leading a first living system. The chemical evolution scenario of RNA molecules should be consistent with the Hadean Earth environment. We have…

Life, 2022, 12 (8), ⟨10.3390/life12081224⟩. ⟨hal-03896279⟩

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Nanostructured and Spiky Gold Shell Growth on Magnetic Particles for SERS Applications

Erin Bedford, Christophe Méthivier, Claire-Marie Pradier, Frank Gu, Souhir Boujday

Nanomaterials, 2020, 10 (11), pp.2136. ⟨10.3390/nano10112136⟩. ⟨hal-03044569⟩

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Influence of the support composition and acidity on the catalytic properties of mesoporous SBA-15, Al-SBA-15, and Al2O3-supported Pt catalysts for cinnamaldehyde hydrogenation

Soraya Handjani, E. Marceau, Juliette Blanchard, Jean-Marc Krafft, Michel Che, Päivi Mäki-Arvela, Narendra Kumar, Johan Wärnå, Dmitry Yu. Murzin

Journal of Catalysis, 2011, 282 (1), pp.228-236. ⟨10.1016/j.jcat.2011.06.017⟩. ⟨hal-03032153⟩

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Influence of the morphology and impurities of Ni(OH)2 on the synthesis of neutral Ni(II)–amino acid complexes

Vicente Rodriguez-Gonzalez, E. Marceau, Michel Che, Claude Pepe

Journal of Solid State Chemistry, 2007, 180 (12), pp.3469-3478. ⟨10.1016/j.jssc.2007.10.015⟩. ⟨hal-03032187⟩

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Role of ethylenediamine in the preparation of alumina-supported Ni catalysts from [Ni(en)2(H2O)2](NO3)2: from solution properties to nickel particles

Fabien Négrier, E. Marceau, Michel Che, Dominique de Caro

Comptes Rendus. Chimie, 2003, 6 (2), pp.231-240. ⟨10.1016/S1631-0748(03)00026-2⟩. ⟨hal-03032203⟩

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Unsupported shaped cobalt nanoparticles as efficient and recyclable catalysts for the solvent-free acceptorless dehydrogenation of alcohols

Arnaud Viola, Jennifer Péron, Kamila Kazmierczak, Marion Giraud, Carine Michel, Lorette Sicard, Noémie Perret, Patricia Beaunier, Mickaël Sicard, Michele Besson, Jean-Yves Piquemal

Oxidation of alcohols is a key-reaction for the valorization of biomass compounds, and green processes are preferred to avoid the use or production of toxic compounds. In this context, unsupported nanometer-sized catalysts have emerged as very promising materials for heterogeneous catalysis. In…

Catalysis Science & Technology, 2018, 8 (2), pp.562 - 572. ⟨10.1039/C7CY02089A⟩. ⟨hal-01744284⟩