• 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

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⟩

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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⟩

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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⟩

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Chemisorbed atomic oxygen inducing Pd segregation in PdAu(111) alloy: Energetic and electronic DFT analysis

Hazar Guesmi, Catherine Louis, Laurent Delannoy

Segregation energies of isolated Pd in PdAu(1 1 1) alloy are investigated by DFT calculations as a function of the oxygen coverage. Segregation of Pd is found to be oxygen-coverage dependent. While for 'clean' PdAu(1 1 1), Pd prefers to be in the bulk, in the presence of more than 1/3 ML…

Chemical Physics Letters, 2011, 503 (1-3), pp.97-100. ⟨10.1016/j.cplett.2010.12.064⟩. ⟨hal-00602939⟩

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Phase cycling in MQMAS sequences for half-integer quadrupole spins

Redouane Hajjar, Yannick Millot, Pascal P. Man

A review presents the anal. expressions of the first- and second-order quadrupole interactions for a static crystal, and for a crystal rotating at variable or magic angle. It also provides mathematica notebooks for calcg. the anal. expressions of existing interactions. Nested phase cycling in MQMAS…

Progress in Nuclear Magnetic Resonance Spectroscopy, 2010, 57 (3), pp.306-342. ⟨10.1016/j.pnmrs.2010.05.003⟩. ⟨hal-00604722⟩

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Nickel(II) Nitrate vs. Acetate: influence of the Precursor on the Structure and Reducibility of Ni/MCM-41 and Ni/Al-MCM-41 Catalysts

Eric Marceau, Michel Che, Jiri Cejka, Arnost Zukal

Nickel(II) nitrate is the nickel precursor generally selected to prep. oxide-supported catalysts, due to its low cost, high soly. in water and decompn. at moderate temps. However, its decompn. produces NOx, and it is known to melt and redistribute over the support upon heating, leading to poorly…

ChemCatChem, 2010, 2 (4), pp.413-422. ⟨10.1002/cctc.200900289⟩. ⟨hal-00604777⟩

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Effects of Pd on Catalysis by Au: CO Adsorption, CO Oxidation, and Cyclohexene Hydrogenation by Supported Au and Pd-Au Catalysts

Anthony Ward, Laurent Delannoy, Ruth Hahn, Shane Kendell, Christopher J. Pursell, Catherine Louis, Bert D. Chandler

catalysts has been shown to have beneficial effects on selective hydrogenation reactions, particularly 1,3- butadiene hydrogenation and the hydrogenation of nitroaromatics, especially p-chloronitrobenzene. Appropriate Pd incorporation enhances hydrogenation activity while maintaining the desirable…

ACS Catalysis, 2013, 3, pp.2644-2653. ⟨10.1021/cs400569v⟩. ⟨hal-00913284⟩

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Chemical Weathering of Alumina in Aqueous Suspension at Ambient Pressure: A Mechanistic Study

Jane Abi aad, Sandra Casale, Mathieu Michau, Philippe Courty, Fabrice Diehl, Eric Marceau, Xavier Carrier

ChemCatChem, 2017, 9 (12), pp.2186 - 2194. ⟨10.1002/cctc.201700145⟩. ⟨hal-01791168⟩

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In situ surface imaging: High temperature environmental SEM study of the surface changes during heat treatment of an Al Si coated boron steel

M. Barreau, C. Méthivier, T. Sturel, C. Allely, P. Drillet, S. Cremel, R. Grigorieva, B. Nabi, Renaud Podor, J. Lautru, V. Humblot, J. Landoulsi, X. Carrier

Al-Si coated boron steels have been of interest for many years because of their superior mechanical properties and their excellent oxidation resistance. These high strength steels are particularly used in hot stamping processes during which the Al-Si coating undergoes multiple microstructural…

Materials Characterization, 2020, 163, pp.110266. ⟨10.1016/j.matchar.2020.110266⟩. ⟨hal-03012691⟩