• Article dans une revue

Activity of molybdenum and tungsten oxycarbides in hydrodenitrogenation of carbazole leading to isomerization secondary reaction of bicyclohexyl. Results using bicyclohexyl as feedstock

Marek Lewandowski, Agnieszka Szymańska-Kolasa, Céline Sayag, Gérald Djéga-Mariadassou

The catalytic activities of bulk tungsten and molybdenum oxycarbides, (W2C and Mo2C) have been specifically studied in the isomerization occurring during the hydrodenitrogenation (HDN) of carbazole. The two catalysts have been characterized by several physico-chemical techniques such as X-Ray…

Applied Catalysis B: Environmental, 2020, 261, pp.118239. ⟨10.1016/j.apcatb.2019.118239⟩. ⟨hal-04024756⟩

• Article dans une revue

Heterogeneous Partial (amm) Oxidation and Oxidative Dehydrogenation Catalysis on Mixed Metal Oxides

Jacques C. Védrine

This paper presents an overview of heterogeneous partial (amm)oxidation and oxidative dehydrogenation (ODH) of hydrocarbons. The review has been voluntarily restricted to metal oxide-type catalysts, as the partial oxidation field is very broad and the number of catalysts is quite high. The main…

Catalysts, 2016, 6 (2), pp.22. ⟨10.3390/catal6020022⟩. ⟨hal-01300672⟩

• Thèse

Synthèse prébiotique de Ribonucléotides sur des surfaces minérales, Prebiotic synthesis of Ribonucleotides on mineral surfaces

Mariame Akouche

Dans le contexte prébiotique du " monde ARN ", les ribonucléotides sont considérés comme étant les premières espèces à avoir émergé sur Terre. En milieu aqueux, leur formation est défavorable thermodynamiquement. Les voies de synthèse de nucléotides décrites en phase homogène impliquent l…, In the « RNA world» prebiotic scenario, ribonucleotide polymers are considered as the first biochemical species to have emerged. However, in aqueous solution, their formation through conventional mechanisms of condensation is thermodynamically forbidden. Several synthesis pathways of nucleotides…

Chimie-Physique [physics.chem-ph]. Université Pierre et Marie Curie - Paris VI, 2016. Français. ⟨NNT : 2016PA066609⟩. ⟨tel-01547822⟩

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Conversion of syngas-derived C 2 + mixed oxygenates to C 3 –C 5 olefins over Zn x Zr y O z mixed oxide catalysts

Colin Smith, Vanessa Lebarbier Dagle, Matthew Flake, Karthikeyan K. Ramasamy, Libor Kovarik, Mark Bowden, Thomas Onfroy, Robert A. Dagle

In this study we report on a ZnxZryOz mixed oxide type catalyst capable of converting a syngas-derived C2+ mixed oxygenate feedstock to isobutene-rich olefins. Aqueous model feed comprising of ethanol, acetaldehyde, acetic acid, ethyl acetate, methanol, and propanol was used as representative…

Catalysis Science & Technology, 2015, 6 (7), pp.2325 - 2336. ⟨10.1039/C5CY01261A⟩. ⟨hal-01547866⟩

• Article dans une revue

Homogeneous Supported Monolayer from Microbial Glycolipid Biosurfactant

Niki Baccile, Anyssa Derj, Cedric Boissiere, Vincent Humblot, Ariane Deniset-Besseau

The development of supported glycosylated lipid layers is an important trend in the field of glyconanomaterials for their interest in understanding sugar-sugar and protein-sugar interactions, these being at the core of cellular, bacterial or viral adhesion. The conventional self-assembled monolayer…

Journal of Molecular Liquids, 2022, 345 (117827), ⟨10.1016/j.molliq.2021.117827⟩. ⟨hal-03149331⟩

• Article dans une revue

Segmentation d’images de lésions cérébrales primitives en TEP FET : influence du volume de travail

C. Lemarignier, J. Kraft, R. Modzelewski, T. Fechter, I. Gardin, I. Götz, A. Grosu, P. Vera, U. Nestle

Médecine Nucléaire - Imagerie Fonctionnelle et Métabolique, 2014, 38 (6), pp.429-38. ⟨10.1016/j.mednuc.2014.09.001⟩. ⟨hal-01142737⟩

• Article dans une revue

Plasma Assisted Catalyst for NOx Remediation from Lean Gas Exhaust

Ahmed Khacef, Patrick da Costa, Gérald Djéga-Mariadassou

A non-thermal plasma (NTP) reactor was coupled with a three-function catalyst in order to verify the nature of the effect of the plasma on the catalytic process. A mixture of NO/O2/hydrocarbons in N2 was used as a lean model exhaust gas composition. The plasma was found to perform two of the three…

Journal of Engineering and Technology Research, 2013, 1 (1), pp.112-122. ⟨hal-00918937⟩

• Article dans une revue

The optimal heterogeneous catalyst for an acid-base reaction

Hervé Toulhoat

Different iron species exhibit distinct activity and selectivity in CO2 hydrogenation reaction. Herein, by controlling calcination temperature, Fe-Al interaction in Na promoted Fe-Al catalysts has been regulated, which further leads to various compositions of iron oxide (FeOx) and iron carbides (…

Journal of Catalysis, 2022, 413, pp.353-364. ⟨10.1016/j.jcat.2022.06.040⟩. ⟨hal-04025490⟩

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Particle Size Effects in the Selective Hydrogenation of Alkadienes over Supported Cu Nanoparticles

Giorgio Totarella, Jan Willem de Rijk, Laurent Delannoy, Petra de Jongh

Copper is considered an excellent alternative to noble-metal selective hydrogenation catalysts. Herein, we systematically studied the effect of Cu nanoparticle size (2-10 nm) in the selective hydrogenation of 1,3-butadiene in excess of propene. The catalysts exhibited particle size-dependent…

ChemCatChem, 2022, 14 (19), pp.e202200348. ⟨10.1002/cctc.202200348⟩. ⟨hal-04025498⟩

• Article dans une revue

Improvement of the Catalytic Performances of SBA‐15 in the Formylation of Aniline upon the Introduction of Template‐Free Nano‐Faujasite in Its Synthesis Gel

Karima Baghdad, Mohammed Abdelkrim Hasnaoui, Franck Launay

Faujasite nanoparticles with average size of 10–40 nm were obtained without any organic structure directing agents (Green synthesis), then used as precursors for the synthesis of NaY/SBA-15 composites. Two types of composites were obtained with meso/micro porosity (C1 and C2).The inorganic salt,…

ChemistrySelect, 2021, 6 (30), pp.7636-7643. ⟨10.1002/slct.202101782⟩. ⟨hal-04025231⟩