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  • Article dans une revue

Controlling the reproducibility of Coulomb blockade phenomena for gold nanoparticles on an organic monolayer/silicon system

L Caillard, S Sattayaporn, A-F Lamic-Humblot, S Casale, P Campbell, y J Chabal, Olivier Pluchery

Two types of highly ordered organic layers were prepared on silicon modified with an amine termination for binding gold nanoparticles (AuNPs). These two grafted organic monolayers (GOMs), consisting of alkyl chains with seven or 11 carbon atoms, were grafted on oxide-free Si(111) surfaces as tunnel…

Nanotechnology, 2015, 26 (6), pp.065301. ⟨10.1088/0957-4484/26/6/065301⟩. ⟨hal-01114456⟩

  • Article dans une revue

Two- and Four-Electrode Configurations for Contactless Reinforced Concrete Corrosion Monitoring

B. Díaz, X.R. Nóvoa, C. Pérez, A. Pintos, Vincent Vivier

The paper addresses the need for a fast and reliable method for field monitoring reinforced concrete structures. A proof of concept is presented where a noncontact procedure provides quantitative information on the concrete resistivity and reinforcement corrosion rate. A Wenner-type probe is…

Corrosion, 2022, 79 (4), pp.419-425. ⟨10.5006/4200⟩. ⟨hal-04294196⟩

  • Article dans une revue

A Material Perspective on HgTe Nanocrystal-based Short Wave Infrared Focal Plane Arrays

Huichen Zhang, Rodolphe Alchaar, Yoann Prado, Adrien Khalili, Charlie Gréboval, Mariarosa Cavallo, Erwan Bossavit, Corentin Dabard, Tung Huu Dang, Claire Abadie, Christophe Methivier, David Darson, Victor Parahyba, Pierre Potet, Julien Ramade, Mathieu Silly, James Utterback, Debora Pierucci, Sandrine Ithurria, Emmanuel Lhuillier

After the use of nanocrystals as light down-converters, infrared sensing appears to be one of the first market applications where they can be used while being both electrically and optically active. Over recent years, tremendous progress has been achieved, leading to an apparent rise in the…

Chemistry of Materials, 2022, 34 (24), pp.10964-10972. ⟨10.1021/acs.chemmater.2c02955⟩. ⟨hal-03894085⟩

  • Article dans une revue

Revisiting the Mukaiyama-type epoxidation for the conversion of styrene into styrene carbonate in the presence of O 2 and CO 2

Matthieu Balas, Asma Mayoufi, Richard Villanneau, Franck Launay

Since its first report in the early 1990s, Mukaiyama-type aerobic epoxidation involving the presence of an aldehyde as an electron donor is considered as an interesting oxidation reaction. Among the various metal catalysts efficient for this process, salen-type complexes have many advantages: i)…

Reaction Chemistry & Engineering, 2023, 8 (2), pp.345-354. ⟨10.1039/d2re00330a⟩. ⟨hal-03990834⟩

  • Article dans une revue

Design of simple salophen chromium complexes for a two-steps oxidative carboxylation of styrene with CO2 and O2

Matthieu Balas, Richard Villanneau, Franck Launay

In this work, chromium(III) Salophen complexes bearing tertiary dimethyl or diethyl amino substituents were synthesized and tested as homogeneous co-catalysts associated with n-Bu 4 NBr for the cycloaddition of CO 2 on styrene epoxide under 11 bar of CO 2. Full conversion of styrene oxide into…

Journal of CO2 Utilization, 2023, 72, pp.102497. ⟨10.1016/j.jcou.2023.102497⟩. ⟨hal-04200038⟩

  • Article dans une revue

Identification and Location of Iron Species in Fe/SBA-15 Catalysts: Interest for Catalytic Fenton Reactions

Cécile Cornu, Jean-Luc Bonardet, Sandra Casale, Anne Davidson, Sebastien Abramson, Gilles André, Florence Porchet, Ivana Grcic, Vesna Tomasic, Dinko Vujevic

We have used a single SBA-15 silica batch (mesopore diameter of 7.1 nm) and the two-solvent impregnation technique with either pentane or cyclohexane to prepare model samples in which an initial aqueous solution of salt precursor (iron nitrate or iron chloride) is deposited mainly inside silica…

Journal of Physical Chemistry C, 2011, 116, pp.3437-3448. ⟨10.1021/jp2038625⟩. ⟨hal-00688081⟩

  • Article dans une revue

Adsorption and self-assembly of bio-organic molecules at model surfaces: A route towards increased complexity

Dominique Costa, Claire-Marie Pradier, Frederik Tielens, Letizia Savio

Understanding the bio-physical chemical interactions at nanostructured biointerfaces and the assembly mechanisms of so-called hybrid nano-composites is nowadays a key issue for nanoscience in view of the many possible applications foreseen. The contribution of surface science in this field is…

Surface Science Reports, 2015, 70 (4), pp.449-553. ⟨10.1016/j.surfrep.2015.10.002⟩. ⟨hal-01275043⟩

  • Article dans une revue

The Synthesis of Different Series of Cobalt BEA Zeolite Catalysts by Post-Synthesis Methods and Their Characterization

Renata Sadek, Karolina Chalupka-Spiewak, Jean-Marc Krafft, Yannick Millot, Laetitia Valentin, Sandra Casale, Jacek Gurgul, Stanislaw Dzwigaj

Three series of zeolite catalysts Co all-silica and Co Al-containing zeolites beta were prepared for use in the selective oxidative dehydrogenation of propane to propylene. Two series of zeolite catalysts Co all-silica were prepared by a two-step postsynthesis method at pH = 2.5 and pH = 3.0-9.0,…

Catalysts, 2022, 12 (12), pp.1644. ⟨10.3390/catal12121644⟩. ⟨hal-04030832⟩

  • Article dans une revue

Catalytic performance of platinum doped tungsten carbide in simultaneous hydrodenitrogenation and hydrodesulphurization

M. H. Lewandowski, Patrick da Costa, D. Benichou, Celine Sayag

The simultaneous hydrodesulphurization (HDS) and hydrodenitrogenation (HDN) reactions of refractory model compds. were performed for the first time over tungsten carbide doped with platinum before and after prepn. (0.3%). It was then compared to that of a pure non-modified W2C. The model compds.…

Applied Catalysis B: Environmental, 2010, 93 (3-4), pp.241-249. ⟨10.1016/j.apcatb.2009.09.035⟩. ⟨hal-00604775⟩

  • Article dans une revue

Partial oxidation of methane over bifunctional catalyst I. In situ formation of Ni0/La2O3 during temperature programmed POM reaction over LaNiO3 perovskite

Tri Huu Nguyen, Agata Łamacz, Patricia Beaunier, Sylwia Czajkowska, Marian Domański, Andrzej Krztoń, Tiep van Le, Gérald Djéga-Mariadassou

The transformation of perovskite to an oxide-supported metal during reaction of partial oxidation of methane (POM) has been very often cited in literature as the “reduction” of the perovskite, without any detailed mechanism. In this work, the in situ transformation of initial LaNiO3 perovskite to…

Applied Catalysis B: Environmental, 2014, 152-153, pp.360-369. ⟨10.1016/j.apcatb.2014.01.053⟩. ⟨hal-01078349⟩