• Article dans une revue

Cu segregation in Au–Cu nanoparticles exposed to hydrogen atmospheric pressure: how is fcc symmetry maintained?

Q. Wang, A. Nassereddine, D. Loffreda, C. Ricolleau, D. Alloyeau, C. Louis, L. Delannoy, J. Nelayah, H. Guesmi

In a recent work [A. Nassereddine et al., Small 2021, 17, 2104571] we reported the atomic-scale structure and dynamics of sub-4 nm sized Au nanoparticles (NPs) supported on titania in H2 at atmospheric pressure obtained by using aberration-corrected environmental transmission electron microscopy (…

Faraday Discussions, 2022, 242, pp.375-388. ⟨10.1039/D2FD00130F⟩. ⟨hal-03863753v2⟩

• Article dans une revue

Unlocking synergy in bimetallic catalysts by core–shell design

Jessi van der Hoeven, Jelena Jelic, Liselotte Olthof, Giorgio Totarella, Relinde van Dijk-Moes, Jean-Marc Krafft, Catherine Louis, Felix Studt, Alfons van Blaaderen, Petra de Jongh

Extending the toolbox from mono- to bimetallic catalysts is key in realizing efficient chemical processes1. Traditionally, the performance of bimetallic catalysts featuring one active and one selective metal is optimized by varying the metal composition1,2,3, often resulting in a compromise between…

Nature Materials, 2021, 20 (9), pp.1216-1220. ⟨10.1038/s41563-021-00996-3⟩. ⟨hal-03995585⟩

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Laccase production from sucrose by recombinant Yarrowia lipolytica and its application to decolorization of environmental pollutant dyes

Farshad Darvishi, Marzieh Moradi, Claude Jolivalt, Catherine Madzak

Laccases are used in decolorization and biodegradation of synthetic dyes, bioremediation of industrial waste-waters and delignification of lignocellulosic compounds. The aims of the present study were the optimization of a recombinant laccase production in Yarrowia lipolytica yeast using sucrose as…

Ecotoxicology and Environmental Safety, 2018, 165, pp.278-283. ⟨10.1016/j.ecoenv.2018.09.026⟩. ⟨hal-02621256⟩

• Article dans une revue

The Mosaic Structure of Zeolite Crystals

Zhengxing Qin, Georgian Melinte, Jean-Pierre Gilson, Maguy Jaber, Krassimir Bozhilov, Philippe Boullay, Svetlana Mintova, Ovidiu Ersen, Valentin Valtchev

Zeolites are widely used in many commercial processes, mostly as catalysts or adsorbents. Understanding their intimate structure at the nanoscale is the key to control their properties and design the best materials for their ever increasing uses. Herein, we report a new and controllable fluoride…

Angewandte Chemie International Edition, 2016, 55 (48), pp.15049-15052. ⟨10.1002/anie.201608417⟩. ⟨hal-02410439⟩

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Spiky gold shells on magnetic particles for DNA biosensors

Erin Bedford, Souhir Boujday, Claire-Marie Pradier, Frank Gu

Combined separation and detection of biomolecules has the potential to speed up and improve the sensitivity of disease detection, environmental testing, and biomolecular analysis. In this work, we synthesized magnetic particles coated with spiky nanostructured gold shells and used them to…

Talanta, 2018, 182, pp.259 - 266. ⟨10.1016/j.talanta.2018.01.094⟩. ⟨hal-01777933⟩

• Article dans une revue

Determination of Integrated Molar Absorption Coefficients for Gaseous Phenol Infrared Bands and Influence of Water Vapor on Their Values

Thomas Onfroy, Olivier Marie

American Journal of Analytical Chemistry, 2019, 10 (01), pp.9-22. ⟨10.4236/ajac.2019.101002⟩. ⟨hal-02019083⟩

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Permanently hydrophilic, piezoelectric PVDF nanofibrous scaffolds promoting unaided electromechanical stimulation on osteoblasts

Maria Kitsara, Andreu Blanquer, Gonzalo Murillo, Vincent Humblot, Sara de Bragança Vieira, Carme Nogués, Elena Ibáñez, Jaume Esteve, Leonardo Barrios

Biomimetic functional scaffolds for tissue engineering should fulfil specific requirements concerning structural, biochemical and electro-mechanical characteristics, depending on the tissue that they are designed to resemble. In bone tissue engineering, piezoelectric materials based on poly(…

Nanoscale, 2019, 11 (18), pp.8906-8917. ⟨10.1039/C8NR10384D⟩. ⟨hal-02351810⟩

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Particle Size Effects in the Selective Hydrogenation of Alkadienes over Supported Cu Nanoparticles

Giorgio Totarella, Jan Willem de Rijk, Laurent Delannoy, Petra de Jongh

Copper is considered an excellent alternative to noble-metal selective hydrogenation catalysts. Herein, we systematically studied the effect of Cu nanoparticle size (2-10 nm) in the selective hydrogenation of 1,3-butadiene in excess of propene. The catalysts exhibited particle size-dependent…

ChemCatChem, 2022, 14 (19), pp.e202200348. ⟨10.1002/cctc.202200348⟩. ⟨hal-04025498⟩

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2D Monolayer of 1T' Phase of Alloyed WSSe from Colloidal Synthesis

Ashkan Shahmanesh, Davide Romanin, Corentin Dabard, Sang-Soo Chee, Charlie Gréboval, Christophe Methivier, Mathieu G Silly, Julien Chaste, Matthieu Bugnet, Debora Pierucci, Abdelkarim Ouerghi, Matteo Calandra, Emmanuel Lhuillier, Benoit Mahler

We explore the colloidal growth of monolayers of WSSe alloy in their 1T' phase with various Se content. We develop a synthetic procedure leading to reduced aggregation of the flakes. The presence of a narrow band-gap close to the top of the valence band has been evidenced combining…

Journal of Physical Chemistry C, 2021, 125 (20), pp.11058-11065. ⟨10.1021/acs.jpcc.1c02275⟩. ⟨hal-03227064⟩

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On the origin of the changes in color of Ag/Al2O3 catalysts during storage

Tesnim Chaieb, Dalil Brouri, Sandra Casale, Jean-Marc Krafft, Tiago da Silva, Cyril Thomas, Laurent Delannoy, Catherine Louis

Despite the large number of catalytic studies involving Ag/Al2O3 catalysts, especially in deNOx reactions, the phenomenon of ageing observed during catalysts storage after preparation by impregnation followed by a calcination treatment, has not been reported earlier and rises questions. The present…

Research on Chemical Intermediates, 2019, 45 (12), pp.5877 - 5905. ⟨10.1007/s11164-019-04007-8⟩. ⟨hal-02407541⟩