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  • Article dans une revue

PdAg alloy nanoparticles encapsulated in N-doped microporous hollow carbon spheres for hydrogenation of CO2 to formate

Guoxiang Yang, Yasutaka Kuwahara, Kohsuke Mori, Catherine Louis, Hiromi Yamashita

Here, we report a general synthesis approach to produce PdAg nanoparticles (NPs) that are dispersed uniformly within N-doped microporous hollow carbon spheres (NMHCS) for hydrogenation of CO2 to formate. The optimized PdAg@NMHCS catalyst, which was obtained by using an optimized amount of…

Applied Catalysis B: Environmental, 2021, 283, pp.119628. ⟨10.1016/j.apcatb.2020.119628⟩. ⟨hal-03995568⟩

  • 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⟩

  • Article dans une revue

Rational design of a CO2-resistant toluene hydrogenation catalyst based on FT-IR spectroscopy studies

Julien Scalbert, Cécile Daniel, Yves Schuurman, Cyril Thomas, Frédéric C. Meunier

Rhodium highly dispersed on alumina becomes partly poisoned by strongly bound CO when used for toluene hydrogenation at 348 K in the presence of CO2. Operando FT-IR analysis enabled to observed CO(ads) build up over the sample, while no CO(gas) could be measured in the reactor effluent. Analyses…

Journal of Catalysis, 2014, 318, pp.61-66. ⟨10.1016/j.jcat.2014.07.013⟩. ⟨hal-01065000⟩

  • Article dans une revue

Recent advances in aptasensors based on graphene and graphene-like nanomaterials

Jianfeng Ping, Yubin Zhou, Yuanyuan Wu, Vladislav Papper, Souhir Boujday, Robert S. Marks, Terry W.J. Steele

Graphene and graphene-like two-dimensional nanomaterials have aroused tremendous research interest in recent years due to their unique electronic, optical, and mechanical properties associated with their planar structure. Aptamers have exhibited many advantages as molecular recognition elements for…

Biosensors and Bioelectronics, 2015, 64, pp.373-385. ⟨10.1016/j.bios.2014.08.090⟩. ⟨hal-01132984⟩

  • Article dans une revue

Coupling morphological evolution and multiphase transport to Decipher degradation in PEM water electrolyzers

Youssef Kharchouf, Loïc Assaud, Mireille Turmine, Vincent Vivier

In this work, we present a multiphase numerical model for the corrosion degradation of proton exchange membrane water electrolyzers. The numerical framework comprises two main components, a geometry tracking component and a performance evaluation component. The geometry tracking is based on the…

Chemical Engineering Science, 2026, 327, pp.123687. ⟨10.1016/j.ces.2026.123687⟩. ⟨hal-05533902⟩

  • Article dans une revue

Copper incorporated mesoporous materials: synthesis, characterization and catalytic activity in benzaldehyde reduction

O. Zekri, A. Saadi, F. Launay, C. Calers, C. Rabia

Copper substituted mesoporous silica materials (Cu–HMS-n), with a variety of Si/Cu atomic ratios (n) ranging from 50 to 100, were synthesized by the one-pot sol–gel method using dodecylamine as template. These materials were characterized by X-ray diffraction, N2 adsorption-desorption, transmission…

Research on Chemical Intermediates, 2018, 44 (7), pp.4397-4413. ⟨10.1007/s11164-018-3394-0⟩. ⟨hal-04015992⟩

  • Article dans une revue

Dealuminated Beta Zeolite Modified by Alkaline Earth Metals

Karolina Chalupka, Renata Sadek, Laetitia Valentin, Yannick Millot, Christophe Calers, Magdalena Nowosielska, Jacek Rynkowski, Stanislaw Dzwigaj

Alkaline Earth metals (Mg, Sr, and Ca) were incorporated into the dealuminated mesoporous beta zeolite (DeAlBeta) by the two-step postsynthesis method. Physicochemical properties of both unmodified and alkaline Earth metal-modified DeAlBeta zeolite were characterized by XRD, DR UV-vis, FTIR, TPD of…

Journal of Chemistry , 2018, 2018, pp.1-11. ⟨10.1155/2018/7071524⟩. ⟨hal-03984227⟩

  • Article dans une revue

Molecular Understanding of the Bulk Composition of Crystalline Nonstoichiometric Hydroxyapatites: Application to the Rationalization of Structure-Reactivity Relationships

Manel Ben Osman, Jean Marc Krafft, Yannick Millot, Frederic Averseng, Tetsuya Yoshioka, Jun Kubo, Guylène Costentin

Crystalline hydroxyapatite samples (HAps) have been prepared by using the co-precipitation method under various pH conditions, leading to nonstoichiometric solids (1.65 < Ca/P < 1.77). The aim of this study was to rationalize the sensitivity of the catalytic activity of HAps to their bulk…

European Journal of Inorganic Chemistry, 2016, 2016 (17), pp.2709 - 2720. ⟨10.1002/ejic.201600244⟩. ⟨hal-01378491⟩

  • Article dans une revue

Impact of Collagen Crosslinking on Dislocated Human Shoulder Capsules—Effect on Structural and Mechanical Properties

Pauline Cornette, Ilhem Jaabar, Vincent Dupres, Jean-David Werthel, Francis Berenbaum, Xavier Houard, Jessem Landoulsi, Geoffroy Nourissat

Classical treatments of shoulder instability are associated with recurrence. To determine whether the modification of the capsule properties may be an alternative procedure, the effect of crosslinking treatment on the structure and mechanical properties of diseased human shoulder capsules was…

International Journal of Molecular Sciences, 2022, 23 (4), pp.2297. ⟨10.3390/ijms23042297⟩. ⟨hal-03617260⟩

  • Article dans une revue

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⟩