• Article dans une revue

Catalytic hydrogen-assisted dehydrochlorination of 1,2-dichloroethane over cobalt-containing beta zeolite

Anna Śrębowata, Rafal Baran, Izabela I. Kamińska, Thomas Onfroy, Jean-Marc Krafft, Stanislaw Dzwigaj

HAlBEA zeolite obtained by calcination of parent TEABEA zeolite at 823 K for 3 h in air following ion exchange with NH4NO3 solution and calcination at 773 K for 3 h was used for synthesis of cobalt containing zeolite by conventional wet impregnation with an aqueous solution of Co(NO3)2. The…

Catalysis Today, 2015, 251, pp.73-80. ⟨10.1016/j.cattod.2014.10.019⟩. ⟨hal-01226839⟩

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Nanoporous Materials as New Engineered Catalysts for the Synthesis of Green Fuels

Ioana Fechete, Jacques Vedrine

This review summarizes the importance of nanoporous materials and their fascinating structural properties with respect to the catalytic and photocatalytic reduction of CO2 to methane, toward achieving a sustainable energy supply. The importance of catalysis as a bridge step for advanced energy…

Molecules, 2015, 20 (4), pp.5638-5666. ⟨10.3390/molecules20045638⟩. ⟨hal-01226491⟩

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Palladium Nanowires Synthesized in Hexagonal Mesophases: Application in Ethanol Electrooxidation

Faygal Ksar, Geetarani Surendran, Laurence Ramos, Bineta Keita, Louis Nadjo, Eric Prouzet, Patricia Beaunier, Agnes Hagege, Fabrice Audonnet, Hynd Remita

Palladium nanowires (of length a few tens of nanometers) are synthesized in a hexagonal mesophase formed by a quaternary system (Pd-doped water, surfactant, cosurfactant, and oil) by electron beam irradiation. The mesophases can be doped by high concentrations of palladium (0.1 M) without any…

Chemistry of Materials, 2009, 21, pp.1612-1617. ⟨10.1021/cm803492j⟩. ⟨hal-00514226⟩

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Emergence of Order in Origin-of-Life Scenarios on Mineral Surfaces: Polyglycine Chains on Silica

Ola El Samrout, Marco Fabbiani, Gloria Berlier, Jean-François Lambert, Gianmario Martra

The polymerization of amino acids (AAs) to peptides on oxide surfaces has attracted interest owing to its high importance in biotechnology, prebiotic chemistry, and origin of life theories. However, its mechanism is still poorly understood. We tried to elucidate the reactivity of glycine (Gly) from…

Langmuir, 2022, 38 (50), pp.15516-15525. ⟨10.1021/acs.langmuir.2c02106⟩. ⟨hal-04025462⟩

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Transforming a Diamagnetic Ordered Mesoporous Silica Monolith into a Room Temperature Permanent Magnet through Multiscale Control of the Magnetic Properties

Virgile Trannoy, Laura Altenschmidt, Giulia Fornasieri, Amélie Bordage, Eric Rivière, Patricia Beaunier, Anne Bleuzen

ChemNanoMat, 2018, 4 (12), pp.1254-1261. ⟨10.1002/cnma.201800333⟩. ⟨hal-02353510⟩

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Simple procedure for vacant POM-stabilized palladium (0) nanoparticles in water: structural and dispersive effects of lacunary polyoxometalates

R. Villanneau, A. Roucoux, P. Beaunier, D. Brouri, A. Proust

Metallic palladium nanoparticles have been generated by hydrogenation with H2 of solutions of several non organometallic PdII-derivatives of heteropolytungstates, at ambient temperature and atmospheric pressure. These nanoparticles have been characterized by various techniques: 31P NMR and Raman…

RSC Advances, 2014, 4 (50), pp.26491-26498. ⟨10.1039/C4RA03104K⟩. ⟨hal-01121577⟩

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Sulfur Deactivation of NOx Storage Catalysts: A Multiscale Modeling Approach.

Nikola Rankovic, Céline Chizallet, Andre Nicolle, David Berthout, Patrick da Costa

Lean NOx Trap (LNT) catalysts, a promising solution for reducing the noxious nitrogen oxide emissions from the lean burn and Diesel engines, are technologically limited by the presence of sulfur in the exhaust gas stream. Sulfur stemming from both fuels and lubricating oils is oxidized during the…

Oil & Gas Science and Technology - Revue d'IFP Energies nouvelles, 2013, 68 (6), pp.995-1005. ⟨10.2516/ogst/2013123⟩. ⟨hal-00934035⟩

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High activity of mononuclear copper present in the framework of CuSiBEA zeolites in the selective catalytic reduction of NO with NH3

Rafal Baran, Teresa Grzybek, Thomas Onfroy, Stanislaw Dzwigaj

CuxSiBEA zeolites (with x = 1–7.5 Cu wt %) prepared by a two-step postsynthesis method which consists in the first step of dealumination of parent BEA zeolite to obtain aluminum-free SiBEA support and then in the second step, of contacting the obtained material with an aqueous solution of copper…

Microporous and Mesoporous Materials, 2016, 226, pp.104-109. ⟨10.1016/j.micromeso.2015.11.065⟩. ⟨hal-01263831⟩

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Non-thermal plasma assisted catalytic NOx remediation from a lean model exhaust

Olivier Gorce, Hervé Jurado, Cyril Thomas, Gérald Dega-Mariadassou, Ahmed Khacef, Jean Marie Cormier, Jean Michel Pouvesle, Gérard Blanchard, Sabine Calvo, Yvanne Lendresse

No efficient catalyst presently exists for deNOx in lean burn conditions. Furthermore, actual catalysts generally deactivate during reaction. A cylindrical DBD non-thermal plasma reactor was coupled with a stable three-function catalyst in order to verify the nature of the effect of the plasma on…

The Journal of the Society of Automotive Engineers, 2001, 01, pp.3508. ⟨hal-00198661⟩

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Influence of natural adsorbates of magnesium oxide on its reactivity in basic catalysis

Damien Cornu, Hugo Petitjean, Guylène Costentin, Hazar Guesmi, Jean-Marc Krafft, Hélène Lauron-Pernot

Solid materials possessing basic properties are naturally covered by carbonates and hydroxyl groups. Those natural adsorbates modify their chemical reactivity. This article aims to specifically evidence the role of surface carbonates and hydroxyls in basic heterogeneous catalysis on MgO. It…

Physical Chemistry Chemical Physics, 2013, 15 (45), pp.19870-19878. ⟨10.1039/C3CP53624F⟩. ⟨hal-00911519⟩