Laboratoire de réactivité de surface

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  • Article dans une revue

An OEGylated thiol monolayer for the tethering of liposomes and the study of liposome interactions

Elisabeth Briand, Vincent Humblot, Claire-Marie Pradier, Bengt Kasemo, Sofia Svedhem

The aim of the present work is to develop a protocol for the specific immobilization of liposomes, via tethers, onto functionalized gold surfaces, and in addition to give one example for such a surface architecture All surface functionalization steps are charcerized and controlled First, mixed…

Talanta, 2010, 81 (4-5), pp.1153-1161. ⟨10.1016/j.talanta.2010.01.027⟩. ⟨hal-00604708⟩

  • Article dans une revue

Ta(V)-Single Site BEA Zeolite by Two-Step Postsynthesis Method: Preparation and Characterization

Stanislaw Dzwigaj, Yannick Millot, Michel Che

Ta(1.0)SiBEA and Ta(2.0)SiBEA zeolites are prepared by a two-step postsynthesis method involving first the creation of vacant T-atom sites associated with silanol groups by dealumination of TEABEA zeolite with nitric acid and then the impregnation of the resulting SiBEA zeolite with tantalum…

Catalysis Letters, 2010, 135 (3-4), pp.169-174. ⟨10.1007/s10562-010-0284-5⟩. ⟨hal-00604713⟩

  • Article dans une revue

Toward redox framework single site zeolite catalysts

Stanislaw Dziwag, Michel Che

This paper concerns heterogeneous single site catalysts which are difficult to prepare because of speciation problems related to the two starting components, the solid and the metal precursor solution. A two-step post-synthesis method is used to prepare the V-SiBEA reference system, with vanadium…

Catalysis Today, 2011, 169, pp.232-241. ⟨10.1016/j.cattod.2011.01.035⟩. ⟨hal-00664504⟩

  • Article dans une revue

Catalytic performances of platinum doped molybdenum carbide for simultaneous hydrodenitrogenation and hydrodesulfurization

Marek Lewandowski, Agnieszka Szymanska-Kolasa, Patrick da Costa, Celine Sayag

The hydrotreating activity of molybdenum carbide doped with platinum (0.3 wt.%) was studied and compared to that of a pure, non-modified Mo2C. 4,6-Dimethyldibenzothiophene (4,6-DMDBT, 300 ppm of S) and carbazole (100 ppm of N) were designated as model compounds and subjected to hydrodesufurization…

Catalysis Today, 2006, 119, pp.31-34. ⟨10.1016/j.cattod.2006.08.062⟩. ⟨hal-00128076⟩

  • Article dans une revue

Using planktonic microorganisms to supply the unpurified multi-copper oxidases laccase and copper efflux oxidases at a biofuel cell cathode (vol 158, pg 231, 2014)

Sabine Sane, Katrin Richter, Stefanie Rubenwolf, Nina Joan Matschke, Claude Jolivalt, Catherine Madzak, Roland Zengerle, Johannes Gescher, Sven Kerzenmacher

absent

Bioresource Technology, 2015, 180, pp.386-387. ⟨10.1016/j.biortech.2014.12.061⟩. ⟨hal-01204454⟩

  • Article dans une revue

Role of active components of an Ag/Al2O3/cordierite catalyst in selective reduction of NO by ethanol

N. A. Popovich, P. I. Kiriienko, S. Solov’ev, S. Orlik, S. Dzwigaj

We show that the activity of silver/aluminum oxide catalysts in selective reduction of nitrogen oxides by ethanol increases as the Al2O3 content increases, and is determined by the optimal silver content for which Ag + cations and Ag n nanoclusters form on the Al2O3 surface. The role of silver in…

Theoretical and Experimental Chemistry, 2012, 48 (4), pp.258 - 264. ⟨10.1007/s11237-012-9270-x⟩. ⟨hal-00805714⟩

  • Article dans une revue

Influence of the preparation procedure on the nature and environment of vanadium in VSiBEA zeolite: XRD, DR UV-vis, NMR, EPR and TPR studies

Rafal Baran, Yannick Millot, Thomas Onfroy, Frédéric Averseng, Jean-Marc Krafft, Stanislaw Dzwigaj

Two series of VxSiBEA(I) and VxSiBEA(II) zeolites have been prepared by a two-steps postsynthesis method which consists, in the first step, in the dealumination of TEABEA zeolite by two different procedures to obtain SiBEA(I) and SiBEA(II) zeolites and then, in the second step, in contacting the…

Microporous and Mesoporous Materials, 2012, 161, pp.179-186. ⟨10.1016/j.micromeso.2012.05.023⟩. ⟨hal-00744705⟩

  • Article dans une revue

Specificinteractions of functionalisedgoldsurfaces with ammonium perchlorate or starch; towards a chemical cartography of their mixture

D. Mercier, C. Mercader, S. Quere, Lionel Hairault, Christophe Methivier, Claire-Marie Pradier

By functionalising gold samples, planar wafers or AFM tips, with an acid- or an amino acid-terminated thiols, mercaptoundecanoic acid (MUA) and homocystein (H-Cyst) respectively, we were able to differentiate the interactions with ammonium perchlorate (AP) and starch (S), two components of a…

Applied Surface Science, 2012, 258, pp.9518-9525. ⟨10.1016/j.apsusc.2012.04.159⟩. ⟨hal-00748889⟩

  • Article dans une revue

Silver species reduction upon exposure of Ag/Al2O3 catalyst to gaseous ethanol: An in situ Quick-XANES study

Elie Sayah, Camille La Fontaine, Valérie Briois, Dalil Brouri, Pascale Massiani

The evolution of supported silver species of a pre-calcined Ag/Al2O3 catalyst was monitored upon thermal treatment under an air flow enriched with 3000 ppm of ethanol (EtOH) using transmission electron microscopy and UV-visible and X-ray absorption spectroscopies. A special focus is put on the…

Catalysis Today, 2012, 189, pp.55-59. ⟨10.1016/j.cattod.2012.03.055⟩. ⟨hal-00745963⟩

  • Article dans une revue

How Surface Hydroxyls Enhance MgO Reactivity in Basic Catalysis: The Case of Methylbutynol Conversion

Petitjean Hugo, Hazar Guesmi, Lauron-Pernot Hélène, Costentin Guylène, David Loffreda, Philippe Sautet, Françoise Delbecq

This combined experimental and theoretical study aims at understanding why surface hydroxyl groups may enhance catalytic reactivity of MgO surfaces in basic catalysis, whereas hydroxyls are weakly deprotonating groups. We investigated that reactivity enhancement in the catalytic conversion of 2-…

ACS Catalysis, 2014, 4 (11), pp.4004-4014. ⟨10.1021/cs5010807⟩. ⟨hal-01121971⟩