• Article dans une revue

Does the S-H Bond Always Break after Adsorption of an Alkylthiol on Au(111)?

Hazar Guesmi, Noelia B. Luque, Elizabeth Santos, Frederik Tielens

The reaction mechanism for the formation of alkyl thiol self-assembled monolayers (SAM) on Au(111) is still not clearly understood. Especially, the role of defects on the chemisorption process is an important goal to be addressed. In this work, different minimum energy reaction paths for R−SH…

Chemistry - A European Journal, 2017, 23 (6), pp.1402-1408. ⟨10.1002/chem.201604574⟩. ⟨hal-01397010⟩

• Article dans une revue

Insight into the mechanism of action of temporin-SHa, a new broad-spectrum antiparasitic and antibacterial agent

Zahid Raja, Sonia André, Feten Abbassi, Vincent Humblot, Olivier Lequin, Tahar Bouceba, Isabelle Correia, Sandra Casale, Thierry Foulon, Denis Sereno, Bruno Oury, Ali Ladram

Antimicrobial peptides (AMPs) are promising drugs to kill resistant pathogens. In contrast to bacteria, protozoan parasites, such as Leishmania, were little studied. Therefore, the antiparasitic mechanism of AMPs is still unclear. In this study, we sought to get further insight into this mechanism…

PLoS ONE, 2017, 12 (3), pp.e0174024. ⟨10.1371/journal.pone.0174024⟩. ⟨hal-01517346⟩

• Article dans une revue

From mesoporous alumina to Pt/Al2O3 catalyst: A comparative study of the aluminas synthesis in aqueous medium, physicochemical properties and stability

Soraya Handjani, Juliette Blanchard, E. Marceau, Patricia Beaunier, Michel Che

Microporous and Mesoporous Materials, 2008, 116 (1-3), pp.14-21. ⟨10.1016/j.micromeso.2008.03.006⟩. ⟨hal-03032177⟩

• Article dans une revue

On the kinetics of CO oxidation by O2 over RhI(CO)2 catalytic species anchored to a zeolitic support

Céline Fontaine-Gautrelet, Cyril Thomas, Jean-Marc Krafft, Gérald Djéga-Mariadassou

The reactivity of RhI(CO)2 towards CO oxidation was studied on a model Rh(0.7 wt%)/HY material. The kinetic results show that RhI(CO)2 exhibit a fairly low activity. It is therefore suggested that the catalytic species responsible for the enhanced activity of Rh/Ce0.68Zr0.32O2 [Manuel et al., J.…

Topics in Catalysis, 2007, 42-43, pp.357-361. ⟨10.1007/s11244-007-0205-z⟩. ⟨hal-00157007⟩

• Article dans une revue

A selective and stable Fe/TiO 2 catalyst for selective hydrogenation of butadiene in alkene-rich stream

Zhao Wang, Laura Santander de Soto, Christophe Méthivier, Sandra Casale, Catherine Louis, Laurent Delannoy

The Fe/TiO 2 catalyst shows high selectivity to alkenes at high butadiene conversion and good stability at 175 °C.

Chemical Communications, 2021, 57 (57), pp.7031-7034. ⟨10.1039/d1cc02366g⟩. ⟨hal-03987090⟩

• Article dans une revue

Effect of ceria promotion on the catalytic performance of Ni/SBA-16 catalysts for CO 2 methanation

Chao Sun, Patricia Beaunier, Patrick da Costa

The presence of Ce inside the SBA-16 structure promoted the ratio of Ce 3+ and medium basic sites and thus favoured CH 4 formation.

Catalysis Science & Technology, 2020, 10 (18), pp.6330-6341. ⟨10.1039/D0CY00922A⟩. ⟨hal-04025210⟩

• Chapitre d'ouvrage

Preparation of Pt°/MCM-41: effect of drying on MCM-41 structure and Pt° dispersion

Baichun Zhu, Franck Letellier, Juliette Blanchard, Katia Fajerwerg, Catherine Louis, Denis Guillaume, Denis Uzio, Miehèle Breysse

Pt°/MCM-41 catalysts were prepared by electrostatic adsorption of Pt(NH3)42+ at pH=8, followed by calcination under O2 and reduction. This procedure allows to prepare highly dispersed Pt° nanoparticles (D>76%), but has the drawback to modify significantly the structure of the ordered mesoporous…

E.M. Gaigneaux; M. Devillers; D.E. De Vos; S. Hermans; P.A. Jacobs; J.A. Martens; P. Ruiz. Scientific Bases for the Preparation of Heterogeneous Catalysts, 162, Elsevier, pp.449-456, 2006, Studies in Surface Science and Catalysis, 978-0-444-52827-8. ⟨10.1016/S0167-2991(06)80939-0⟩. ⟨hal-03663614⟩

• Article dans une revue

Iron topochemistry and surface reactivity of amphibole asbestos: relations with in vitro toxicity

A. Pacella, Giovanni B. Andreozzi, Jeanine Fournier, Lorenzo Stievano, F. Giantomassi, Guendalina Lucarini, Maria Rita Rippo, A. Pugnaloni

Chemical reactivity of asbestos tremolite from Italy and USA localities and Union Internationale Contre le Cancer (UICC) crocidolite was studied in relation to Fe content, oxidation state, and structural coordination. Direct correlation between amount of Fe2+ at the exposed M(1) and M(2) sites of…

Analytical and Bioanalytical Chemistry, 2011, 402, pp.871-881. ⟨10.1007/s00216-011-5525-y⟩. ⟨hal-00687590⟩

• Article dans une revue

New ammonium surfactant-stabilized rhodium(0) colloidal suspensions: influence of novel counter-anions on physico-chemical and catalytic properties.

Elodie Bile Guyonnet, Rita Sassine, Audrey Denicourt-Nowicki, Franck Launay, Alain Roucoux

Novel anionic species, such as hydrogen carbonate (HCO(3)(−)), fluoride (F(−)), triflate (CF(3)SO(3)(−)), tetrafluoroborate (BF(4)(−)) and chloride (Cl(−)) were investigated as new partners of water soluble N,N-dimethyl-N-cetyl-N-(2-hydroxyethyl) ammonium salts, used as a protective agent of…

Dalton Transactions, 2011, 40 (24), pp.6524-31. ⟨10.1039/C0DT01763A⟩. ⟨hal-00668358⟩

• Article dans une revue

How the acido-basic properties of Mg silicates and clays govern the catalytic mechanism of transesterification reactions

Longfei Lin, Elisa Silva Gomes, François Payan, Maguy Jaber, Jean-Marc Krafft, Guillaume Laugel, Hélène Lauron-Pernot

Choosing acido-basic properties of magnesium silicates to tune the transesterification mechanism in the liquid phase.

Catalysis Science & Technology, 2019, 9 (21), pp.6072-6084. ⟨10.1039/C9CY01475F⟩. ⟨hal-03990037⟩