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  • Article dans une revue

Characterizations and performances of Ni/diatomite catalysts for dry reforming of methane

Karam Jabbour, Nissrine El Hassan, Anne Davidson, Pascale Massiani, Sandra Casale

Monometallic 5 wt% Ni containing catalysts were prepared by a two-solvent (cyclohexane/water) deposition method using cheap and widely available natural diatomites (Ni/AW2 and Ni/MN3) as supports. The fresh samples were characterized by SEM, EDX microanalysis, N2 adsorption–desorption isotherms,…

Journal Chemical Engineering, 2015, 264, pp.351-358. ⟨10.1016/j.cej.2014.11.109⟩. ⟨hal-01118933⟩

  • Article dans une revue

Superior Stability of Au/SiO 2 Compared to Au/TiO 2 Catalysts for the Selective Hydrogenation of Butadiene

Nazila Masoud, Laurent Delannoy, Herrick Schaink, Ad van Der Eerden, Jan Willem de Rijk, Tiago A. G. Silva, Dipanjan Banerjee, Johannes D. Meeldijk, Krijn P. de Jong, Catherine Louis, Petra E. de Jongh

Supported gold nanoparticles are highly selective catalysts for a range of both liquid-phase and gas-phase hydrogenation reactions. However, little is known about their stability during gas-phase catalysis and the influence of the support thereon. We report on the activity, selectivity, and…

ACS Catalysis, 2017, 7 (9), pp.5594 - 5603. ⟨10.1021/acscatal.7b01424⟩. ⟨hal-01651990⟩

  • Article dans une revue

What Do Tantalum Framework Sites Look Like in Zeolites? A Combined Theoretical and Experimental Investigation

Frederik Tielens, Tetsuya Shishido, Stanislaw Dzwigaj

Ab initio periodic DFT calculations on the structural and energy properties of different model tantalum framework sites in tantalum-substituted socialite cavities are presented and related to experimental FTIR measurements on Ta-containing SiBEA zeolites. The tantalum framework sites are…

Journal of Physical Chemistry C, 2010, 114 (21), pp.9923-9930. ⟨10.1021/jp102181m⟩. ⟨hal-00604808⟩

  • Article dans une revue

EPR Characterization and Reactivity of Surface-Localized Inorganic Radicals and Radical Ions

Mario Chiesa, Elio Giamello, Michel Che

A review. The role of surface inorg. radicals and radical ions formed at the interface between a solid and a gas phase was discussed. The formation of such species is relevant to field such as electrochem., heterogeneous catalysts, photocatalysis and corrosion. The characterization of these…

Chemical Reviews, 2010, 110 (3), pp.1320-1347. ⟨10.1021/cr800366v⟩. ⟨hal-00604710⟩

  • Article dans une revue

Sustainable production of acrolein: effects of reaction variables, modifiers doping and ZrO2 origin on the performance of WO3/ZrO2 catalyst for the gas-phase dehydration of glycerol

Song-Hai Chai, Li-Zhi Tao, Bo Yan, Jacques C. Vedrine, Bo-Qing Xu

Zirconia-supported tungsten oxide (WO3/ZrO2 or WZ) is known as an efficient catalyst for selective acrolein (AC) production from gas-phase dehydration of glycerol (GL). Two catalysts (WZ-CP and WZ-AN) were prepared herein using, respectively, a ZrO(OH)2 hydrogel (ZrO(OH)2-CP) and its derived…

RSC Advances, 2014, 4 (9), pp.4619-4630. ⟨10.1039/C3RA46511J⟩. ⟨hal-01079293⟩

  • Article dans une revue

Prebiotic chemistry

J.F. Lambert, M. Sodupe, P. Ugliengo

Without doubt, one of the most fascinating questions ever asked is ''What is life?'', immediately followed by ''How and where did life arise?''. Both questions are by no means exclusively related to chemistry and biology. Indeed, it was soon realized that…

Chemical Society Reviews, 2012, 41, pp.5373-5374. ⟨10.1039/c2cs90061k⟩. ⟨hal-00809265⟩

  • Article dans une revue

Discrimination of infrared fingerprints of bulk and surface POH and OH of hydroxyapatites

Sarah Diallo-Garcia, Manel Ben Osman, Jean-Marc Krafft, Souhir Boujday, Guylene Costentin

The identification of the nature of the surface acid base pairs present on hydroxyapatites surface is a key point to rationalize their catalytic properties. To investigate the possible involvement of acidic protonated phosphate (POH) and/or of basic OH emerging from the channels, the spectroscopic…

Catalysis Today, 2014, 226, pp.81-88. ⟨10.1016/j.cattod.2013.11.041⟩. ⟨hal-00982290⟩

  • Article dans une revue

Gold Nanoparticles Assembly on Silicon and Gold Surfaces: Mechanism, Stability and Efficiency in Diclofenac Biosensing

Maroua Ben Haddada, Maria Hübner, Sandra Casale, Dietmar Knopp, Reinhard Niessner, Michele Salmain, Souhir Boujday

We investigated the assembly of Gold nanoparticles (AuNPs) on Gold and Silicon sensors with two final objectives: (i) understanding the factors governing the interaction and (ii) building up a nanostructured piezoelectric immunosensor for diclofenac, a small-sized pharmaceutical pollutant.…

Journal of Physical Chemistry C, 2016, 120 (51), pp.29302-29311. ⟨10.1021/acs.jpcc.6b10322⟩. ⟨hal-01411566⟩

  • Article dans une revue

Nanostructured and spiky gold in biomolecule detection: improving binding efficiencies and enhancing optical signals

E. E. Bedford, S. Boujday, C.-M. Pradier, F. X. Gu

Nanostructured gold can improve the ability to detect biomolecules. Whether planar nanostructured surfaces or nanostructured particles are used, similar principles governing the enhancement apply. The two main benefits of nanostructured gold are improved geometry and enhancement of optical…

RSC Advances, 2015, 5 (21), pp.16461-16475. ⟨10.1039/c4ra13544j⟩. ⟨hal-01133167⟩

  • Article dans une revue

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⟩