Laboratoire de réactivité de surface

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  • Article dans une revue

Biosensors elaborated on gold nanoparticles, a PM-IRRAS characterisation of the IgG binding efficiency.

Anne-Laure Morel, Souhir Boujday, Christophe Méthivier, Jean-Marc Krafft, Claire-Marie Pradier

This work is focused on studying the grafting of gold nanoparticles (Np) on a cystamine self-assembled monolayer on gold, in order to build sensitive immunosensors. The synthesis and deposition of gold nanoparticles, 13 and 55 nm sizes, were characterised by combining Polarisation Modulation…

Talanta, 2011, 85, pp.35-42. ⟨10.1016/j.talanta.2011.02.028⟩. ⟨hal-00668945⟩

  • Article dans une revue

A combined EXAFS and DFT study of the Ni2+ environment in dehydrated Ni/NaX

Hazar Guesmi, Pascale Massiani

The location of the divalent nickel cation exchanged in low amount in dehydrated NaX is identified by a combination of experimental (XAS) and theoretical (DFT) approaches. The Ni-O and Ni-T distances as well as the coordination numbers evaluated from experiments are in good agreement with the…

Catalysis Today, 2011, 177, pp.25-30. ⟨10.1016/j.cattod.2011.04.047⟩. ⟨hal-00667400⟩

  • Article dans une revue

Enhanced selective nitroarene hydrogenation over Au supported on b-Mo2C and b-Mo2C/Al2O3

Noemie Perret, Xiaodong Wang, Laurent Delannoy, Claude Potvin, Catherine Louis, Mark A. Keane

b-Mo2C and b-Mo2C/Al2O3 have been synthesised via temperature programmed carburisation and employed, for the first time, as supports for gold catalysts. 1%w/w Au/Mo2C and Au/Mo2C/Al2O3 were prepared by deposition-precipitation with urea and used to promote the gas phase hydrogenation of para-…

Journal of Catalysis, 2011, 286, pp.172-183. ⟨10.1016/j.jcat.2011.10.026⟩. ⟨hal-00687605⟩

  • Article dans une revue

The synergistic power of theory and experiment in the field of catalysis

Frederik Tielens, Monica Calatayud

Potential energy curves, equilibrium interatomic distances, term energies and harmonic vibration frequencies for the 16 lowest states of neutral carbon monoxide and the six lowest states of singly ionized carbon monoxide are calculated by density functional theory (DFT) and linear-response time-…

Catalysis Today, 2011, 177, pp.1-2. ⟨10.1016/j.cattod.2011.08.026⟩. ⟨hal-00669713⟩

  • Article dans une revue

Transition-Metal-Free Catalysts for the Sustainable Epoxidation of Alkenes: From Discovery to Optimisation by Means of High Throughput Experimentation

Warunee Lueangchaichaweng, Inge Geukens, Annelies Peeters, Benjamin Jarry, Franck Launay, Jean-Luc Bonardet, Pierre A. Jacobs, Paolo P. Pescarmona

Abstract: Transition-metal-free oxides were studied as heterogeneous catalysts for the sustainable epoxidation of alkenes with aqueous H2O2 by means of high throughput experimentation (HTE) techniques. A full-factorial HTE approach was applied in the various stages of the development of the…

Combinatorial Chemistry and High Throughput Screening, 2012, 15, pp.140-151. ⟨10.2174/138620712798868338⟩. ⟨hal-00757239⟩

  • Article dans une revue

The past, present and future of heterogeneous catalysis

Ioana Fechete, Ye Wang, Jacques Vedrine

This review highlights key catalytic discoveries and the main industrial catalytic processes over the last 300 years that involved commodities, fine chemicals, petrochemicals, petroleum transformation for fuels and energy supply, emission control, and so forth. In the past, discoveries have often…

Catalysis Today, 2012, 189, pp.2-27. ⟨10.1016/j.cattod.2012.04.003⟩. ⟨hal-00744317⟩

  • Article dans une revue

Intracellular biosynthesis of superparamagnetic 2-lines ferri-hydrite nanoparticles using Euglena gracilis microalgae

Roberta Brayner, Thibaud Coradin, Patricia Beaunier, Jean-Marc Greneche, Chakib Djediat, Claude Yéprémian, Alain Couté, Fernand Fievet

The intracellular biosynthesis of superparamagnetic (blocking temperature 5.6 K) 2-lines ferrihydrite (Fh2L) nanoparticles was observed within living Euglena gracilis microalgae.

Colloids and Surfaces B: Biointerfaces, 2012, 93, pp.20-23. ⟨10.1016/j.colsurfb.2011.10.014⟩. ⟨hal-00750391⟩

  • Article dans une revue

Effects of organic and inorganic treatment agents on the formation of conversion layer on hot-dip galvanized steel: An X-ray photoelectron spectroscopy study

S. Le Manchet, D. Verchere, Jessem Landoulsi

The formation of a Cr-free conversion layer on hot-dip galvanized (HDG) steel involves various interfacial processes which radically influence the composition of the coating and thus its performance. Here, we investigate the role of the main constituents contained in the treatment bath, the…

Thin Solid Films, 2012, 520, pp.2009-2016. ⟨10.1016/j.tsf.2011.09.064⟩. ⟨hal-00748848⟩

  • Article dans une revue

Probing Peptide-inorganic surface interaction at the single molecule level using force spectroscopy.

Jessem Landoulsi, Vincent Dupres

We investigate the interaction between D-Ala-D-Ala peptide and a stainless steel (SS) surface by AFM force spectroscopy with view to understand the role and nature of interfacial processes at the single molecule level. For this purpose, force-distance curves were recorded between the D-Ala-D-Ala…

ChemPhysChem, 2011, 12 (7), pp.1310-6. ⟨10.1002/cphc.201100007⟩. ⟨hal-00596388⟩

  • Article dans une revue

Surface chemistry and surface reactivity of fibrous amphiboles that are not regulated as asbestos

M. Fantauzzi, M. Pacella, J. Fournier, A. Gianfagna, G. B. Andreozzi, A. Rossi

Three fibrous amphiboles that are not regulated as asbestos--two from Biancavilla (Sicily, Italy) and one from Libby (MT, USA)--were studied in order to establish relationships between surface chemistry and surface reactivity. The three fibrous samples, plus one prismatic fluoro-edenite from…

Analytical and Bioanalytical Chemistry, 2012, 404, pp.821-833. ⟨10.1007/s00216-012-6190-5⟩. ⟨hal-00805738⟩