• Thèse

Bulk TiO2 vs alternative Ti-based photocatalysts for the mild aerobic oxidation of alcohols, Masse de TiO2 versus photocatalyseurs alternatifs à base de titane de l’oxydation ménagée et aérobie d’alcools

Diaa Obaid

A series of metal oxides semiconductors, including commercially available TiO2 or synthesized mesoporous samples, were tested as photocatalysts for the aerobic mild oxidation of alcohols in acetonitrile under UV. Benzyl alcohol, used as a reference, was oxidized mainly into benzaldehyde. Best yield…, Des oxydes semi-conducteurs, en particulier TiO2 commercialement disponible ou des échantillons mésoporeux synthétisés, ont été testés comme photocatalyseurs de l'oxydation ménagée et aérobie d'alcools dans l'acétonitrile sous UV. L'alcool benzylique a été oxydé principalement…

Theoretical and/or physical chemistry. Université Pierre et Marie Curie - Paris VI, 2017. English. ⟨NNT : 2017PA066578⟩. ⟨tel-01913747⟩

• Article dans une revue

Isopropanol Dehydration on Amorphous Silica–Alumina: Synergy of Brønsted and Lewis Acidities at Pseudo-Bridging Silanols

Kim Larmier, Céline Chizallet, Sylvie Maury, Nicolas Cadran, Johnny Abboud, Anne-Félicie Lamic-Humblot, Eric Marceau, Hélène Lauron-Pernot

The mechanism of isopropanol dehydration on amorphous silica–alumina (ASA) was unraveled by a combination of experimental kinetic measurements and periodic density functional theory (DFT) calculations. We show that pseudo-bridging silanols (PBS-Al) are the most likely active sites owing to the…

• Article dans une revue

Non-biological selectivity in amino acids polymerization on TiO2 nanoparticles

Maguy Jaber, Jolanda Spadavecchia, Houssein Bazzi, Thomas Georgelin, France Costa-Torro, Jean-François Lambert

For the first, time a strong selectivity is evidenced in inorganic peptide synthesis. When an equimolar mixture of Ala and Arg monomers is added to the synthesis medium of TiO2 nanoparticles from Ti(IV) isopropoxide in benzyl alcohol, the Ala-Arg dipeptide is observed by 13C NMR in the resulting…

Amino Acids, 2013, 45, pp.403-406. ⟨10.1007/s00726-013-1516-y⟩. ⟨hal-00957907⟩

• Article dans une revue

Chiral Recognition of l-Gramicidine on Chiraly Methionine-Modified Au(111)

Vincent Humblot, Claire-Marie Pradier

A chiral pentadecapeptide, l-gramicidine, has been shown to undergo specific adsorption onto gold surfaces modified by chiral amino acids, d- and l-methionine, upon adsorption in the liquid phase. There is a chiral recognition only between the slightly anionic l-peptide and the l-modified surface…

Journal of Physical Chemistry Letters, 2013, 4, pp.1816-1820. ⟨10.1021/jz400608n⟩. ⟨hal-00957896⟩

• Article dans une revue

Role of Phosphorus and Triethylene Glycol Incorporation on the Activity of Model Alumina‐Supported CoMoS Hydrotreating Catalysts

Ricardo Garcia de Castro, Elodie Devers, Mathieu Digne, Anne‐félicie Lamic‐humblot, Gerhard Pirngruber, Xavier Carrier

Environmental regulations concerning fuel-related sulfur emissions are currently experiencing worldwide expansion. This is motivating the research and development of improved hydrotreating (HDT) catalysts with carefully engineered synthesis methods that maximize activity as ultimate goal. In this…

ChemCatChem, 2022, 14 (6), pp.e202101493. ⟨10.1002/cctc.202101493⟩. ⟨hal-03599082⟩

• Article dans une revue

A hydrophobic titanium doped zirconium-based metal organic framework for photocatalytic hydrogen peroxide production in a two-phase system

Xiaolang Chen, Yasutaka Kuwahara, Kohsuke Mori, Catherine Louis, Hiromi Yamashita

A hydrophobic Ti doped Zr-based MOF was synthesized and used for photocatalytic H 2 O 2 production in a two-phase system (water/benzyl alcohol).

Journal of Materials Chemistry A, 2020, 8 (4), pp.1904-1910. ⟨10.1039/C9TA11120D⟩. ⟨hal-03995333⟩

• Article dans une revue

Insights into the accessibility of Zr in Zr/SBA-15 mesoporous silica supports with increasing Zr loadings

Masaru Ogura, Remy Guillet-Nicolas, Dalil Brouri, Sandra Casale, Juliette Blanchard, Katie A. Cychosz, Matthias Thommes, Cyril Thomas

Oxide-promoted SBA-15 materials have been shown to be profitable in a wide variety of catalytic reactions of environmental interest. Zr-SBA-15 materials have been found to be of particular interest in hydrotreating, biomass conversion and Fisher–Tropsch synthesis. In these studies, the…

Microporous and Mesoporous Materials, 2016, 225, pp.440-449. ⟨10.1016/j.micromeso.2016.01.026⟩. ⟨hal-01274363⟩

• Chapitre d'ouvrage

NOx Abatement by Plasma Catalysis

Gérald Djéga-Mariadassou, Francois Baudin, Ahmed Khacef, Patrick da Costa

Vasile I. Parvulescu, Monica Magureanu, Petr Lukes. Plasma Chemistry and Catalysis in Gases and Liquids, Wiley-VCH, pp.89-129, 2012, 978-3-527-33006-5. ⟨hal-00711016⟩

• Article dans une revue

Heterogeneous Catalysis on Metal Oxides

Jacques Vedrine

This review article contains a reminder of the fundamentals of heterogeneous catalysis and a description of the main domains of heterogeneous catalysis and main families of metal oxide catalysts, which cover acid-base reactions, selective partial oxidation reactions, total oxidation reactions,…

Catalysts, 2017, 7 (11), ⟨10.3390/catal7110341⟩. ⟨hal-01739866⟩

• Article dans une revue

Synergistic Effect Between Ca 4 V 4 O 14 and Vanadium‐Substituted Hydroxyapatite in the Oxidative Dehydrogenation of Propane

Sarah Petit, Cyril Thomas, Yannick Millot, Frederic Averseng, Dalil Brouri, Jean‐marc Krafft, Stanislaw Dzwigaj, Gwenaelle Rousse, Christel Laberty‐robert, Guylène Costentin

The present work reports on a new type of V-based catalysts, namely V-substituted hydroxyapatites, and the influence of the synthesis conditions on their catalytic performance in the oxidative dehydrogenation of propane (ODHP) reaction. Vx-substituted hydroxyapatite materials prepared with the…

ChemCatChem, 2021, 13 (18), pp.3995-4009. ⟨10.1002/cctc.202100807⟩. ⟨hal-03349135⟩