• Article dans une revue

Adsorption of functionalised thiols on gold surfaces: how to build a sensitive and selective sensor for a nitroaromatic compound?

F. Thery-Merland, Christophe Méthivier, Eric Pasquinet, Lionel Hairault, Claire-Marie Pradier

Adsorption of thiols of varying structures bearing amine, acid or aromatic functionalities was characterised by Polarisation Modulation Infrared Absorption Spectroscopy (PM-IRRAS). The so functionalised surfaces were then submitted to atmospheres containing traces of 2,4…

Sensors and Actuators B: Chemical, 2006, 114, pp.223-228. ⟨10.1016/j.snb.2005.04.040⟩. ⟨hal-00111676⟩

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Comparison between tungsten carbide and molybdenum carbide for the hydrodenitrogenation of carbazole

Agnieszka Szymanska-Kolasa, Marek Lewandowski, Celine Sayag, Dominique Brodzki, G. Djéga-Mariadassou

The activity of molybdenum and tungsten carbides in hydrodenitrogenation (HDN) of carbazole was studied. Transition metal carbides (Mo2C and W2C) were synthesized using the temperature-programmed reaction of the appropriate oxide precursor (MoO3 and WO3) with the following gas mixture: 10 vol.% CH4…

Catalysis Today, 2006, 119, pp.35-38. ⟨10.1016/j.cattod.2006.08.039⟩. ⟨hal-00128071⟩

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Self-Assembling of Redox-Active Atrazine Poly(ethylenimine) Conjugates – Interfacial Electrochemical and Spectroscopic Characterization

Zhaohui Chen, Michèle Salmain, Claire-Marie Pradier, Nathalie Fischer-Durand, Alain Pailleret, Féthi Bedioui, Sandrine Zanna

Thin films of polymers tethered with both atrazine haptens and ferrocenyl (Fc) probes were formed on polycrystalline gold electrodes by taking advantage of the facile formation of self-assembled monolayers (SAMs) of thiolates. These films were characterized by polarization modulation Fourier…

Electroanalysis, 2006, 18 (7), pp.684-694. ⟨10.1002/elan.200503451⟩. ⟨inserm-00194708⟩

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Revisiting Acido-basicity of the MgO Surface by Periodic Density Functional Theory Calculations: Role of Surface Topology and Ion Coordination on Water Dissociation

Céline Chizallet, Guylène Costentin, Michel Che, Françoise Delbecq, Philippe Sautet

Low-coordinated (LC) ions at the MgO surface (noted Mg2+ LC and O2- LC with L ) 1-5), located on monatomic and diatomic steps, corners, step divacancies, and kinks, have been modeled thanks to periodic density functional theory (DFT) calculations (VASP). Ions of lowest coordination induce the…

Journal of Physical Chemistry B, 2006, 110, pp.15878-15886. ⟨10.1021/jp060840l⟩. ⟨hal-00112168⟩

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N-Methylephedrium Salts as Chiral Surfactants for Asymmetric Hydrogenation in Neat Water with Rhodium(0) Nanocatalysts

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

Synthesis of a water-sol. family of optically active N-methylephedrium salts NMeEph12X I [X = Br, HCO3, (S)-lactate] that can be used as efficient protective agents of metallic nanoparticles in neat water was described. The resulting materials were evaluated in the asym. hydrogenation of…

ChemSusChem, 2010, 3 (11), pp.1276-1279. ⟨10.1002/cssc.201000206⟩. ⟨hal-00604720⟩

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Total oxidation of propene over Au/xCeO(2)-Al2O3 catalysts: Influence of the CeO2 loading and the activation treatment

Pandian Lakshmanan, Laurent Delannoy, Vincent Richard, Christophe Methivier, Claude Potvin, Catherine Louis

This study explores the reaction of oxidation of propene (1200 ppm) under excess oxygen (9%) over Au/xCeO(2)/Al2O3 catalysts (x = 1.5, 3, 5, and 10 wt% CeO2) to mimic the conditions of VOC decomposition. The present study reveals the influence of several factors that affect the oxidative…

Applied Catalysis B: Environmental, 2010, 96 (1-2), pp.117-125. ⟨10.1016/j.apcatb.2010.02.009⟩. ⟨hal-00604727⟩

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Optimized immobilization of gold nanoparticles on planar surfaces through alkyldithiols and their use to build 3D biosensors

Anne-Laure Morel, Rose-Marie Volmant, Christophe Methivier, Jean-Marc Krafft, Souhir Boujday, Claire-Marie Pradier

This paper describes a controlled way to immobilize gold nanoparticles on planar gold surfaces and the use of the resulting 3D platform to build up a 3D biosensor. The surface was first functionalized by grafting hexanedithiol, this molecule has 2 thiol end groups, which enables its chemical…

Colloids and Surfaces B: Biointerfaces, 2010, 81 (1), pp.304-312. ⟨10.1016/j.colsurfb.2010.07.021⟩. ⟨hal-00604782⟩

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Well-Defined Amphiphilic Block Copolymers and Nano-objects Formed in Situ via RAFT-Mediated Aqueous Emulsion Polymerization

Xuewei Zhang, Stephanie Boisse, Wenjing Zhang, Patricia Beaunier, Franck d'Agosto, Jutta Rieger, Bernadette Charleux

Macromolecules, 2011, 44 (11), pp.4149-4158. ⟨10.1021/ma2005926⟩. ⟨hal-01877415⟩

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Multi‐Scale Investigation of Supramolecular Organogels Assembled From Pt(II)‐Salphen Complexes

Pablo Msellem, Davide Condotta, Lise‐marie Chamoreau, Mickaël Pomes‐hadda, Nathan J van Zee, Cédric Lorthioir, Clément Guibert, Guillaume Vives

<div><p>Supramolecular metallogels based on platinum(II) complexes have attracted growing interest due to their tunable photophysical properties. However, the potential of Pt(II)-salphen complexes as low-molecular-weight gelators remains largely unexplored. Here, we report a series of…

Chemistry - A European Journal, In press, ⟨10.1002/chem.71506⟩. ⟨hal-05837648⟩

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Ni-Silica-based Catalysts for CH4 Reforming by CO2 with Enhanced Stability: Recent Designs and the Impacts of Ni Confinement, Promoters, and Core-Shell Structures

Oscar Daoura, Maya Boutros, Franck Launay

CO2 reforming of CH4, also referred to as the Dry Reforming of Methane (DRM), is considered an excellent method to produce H2 and CO (syngas), which are known to be used for the production of higher alkanes and oxygenates. Despite nickel’s moderate toxicity, Ni-based heterogeneous catalysts are…

Journal of Energy and Power Technology, 2021, 3 (1), ⟨10.21926/jept.2101007⟩. ⟨hal-04025299⟩