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  • 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

Modelling of a Lean NOx-Trap system with NO/NO2 differentiation and sulfur poisoning

Alexis Manigrasso, Pierre Darcy, Patrick da Costa

One of the challenges in the automotive industry is to develop new vehicles and new technologies with minimal costs. In this context, modeling becomes an important tool for the design of future technologies by reducing the number of tests needed to develop a new exhaust system. With the emergence…

SAE International Journal of Fuels and Lubricants, 2010, 3 (2), pp.414-424. ⟨hal-00604776⟩

  • Article dans une revue

Plasmonic photothermal destruction of uropathogenic E. coli with reduced graphene oxide and core/shell nanocomposites of gold nanorods/reduced graphene oxide

Kostiantyn Turcheniuk, Charles-Henri Hage, Jolanda Spadavecchia, Aritz Yanguas Serrano, Iban Larroulet, Amaia Pesquera, Amaia Zurutuza, Mariano Gonzalez Pisfil, Laurent Heliot, Julie Bouckaert, Rabah Boukherroub, Sabine Szunerits

The development of non-antibiotic based treatments against bacterial infections by Gram-negative uropathogenic E. coli is a complex task. New strategies to treat such infections are thus urgently needed. This report illustrates the development of pegylated reduced graphene oxide nanoparticles (rGO-…

Journal of materials chemistry‎ B, 2015, Journal of Materials Chemistry B, 3 (3), pp.375-386. ⟨10.1039/C4TB01760A⟩. ⟨hal-03205552⟩

  • Article dans une revue

Synthesis of small Ni-core–Au-shell catalytic nanoparticles on TiO2 by galvanic replacement reaction

Julien Reboul, Z. y Li, Jun Yuan, Kazuki Nakatsuka, Masakazu Saito, Kohsuke Mori, Hiromi Yamashita, Yu Xia, Catherine Louis

We report the first preparation of small gold–nickel (AuNi) bimetallic nanoparticles (<5 nm) supported on titania by the method of galvanic replacement reaction (GRR), evidenced by the replacement of Ni atoms by Au atoms according to the stoichiometry of the reaction. We showed that this…

Nanoscale Advances, 2021, ⟨10.1039/d0na00617c⟩. ⟨hal-03113238⟩

  • Article dans une revue

Chemical Differentiation of Planets: A Core Issue

Hervé Toulhoat, Viacheslav Zgonnik

By plotting empirical chemical element abundances on Earth relative to the Sun and normalized to silicon versus their first ionization potentials, we confirm the existence of a correlation reported earlier. To explain this, we develop a model based on principles of statistical physics that predicts…

The Astrophysical Journal, 2022, 924 (2), pp.83. ⟨10.3847/1538-4357/ac300b⟩. ⟨hal-03536637⟩

  • Article dans une revue

Cellulose fibers modification through metal-free click chemistry for the elaboration of versatile functional surfaces

Alex Meye Biyogo, Louise Hespel, Vincent Humblot, Laurent Lebrun, François Estour

In the present work, a novel and versatile way was developed to functionalize cellulose fibers from wipes under heterogeneous conditions. The technic was based on metal-free click chemistry to avoid the persistence of any metal traces on cellulose. First, cellulose fibers were covalently pre-…

European Polymer Journal, 2020, 135, pp.109866. ⟨10.1016/j.eurpolymj.2020.109866⟩. ⟨hal-02907151⟩

  • Article dans une revue

Urea electro-oxidation byproducts impact on NiO/NiOOH anode performance studied by operando electrochemical impedance spectroscopy

Sophia Akkari, Vincent Vivier, Carlos M Sánchez-Sánchez

With significant quantities of urea (CO(NH2)2) being worldwide produced and its presence at high concentration in urine, simultaneous treatment of urea effluents and hydrogen production by paired electrolysis represents a very attractive approach in circular economy. Urea electro-oxidation on Ni-…

Electrochimica Acta, 2024, 474, pp.143526. ⟨10.1016/j.electacta.2023.143526⟩. ⟨hal-04298004⟩

  • Thèse

TOOTHMIMIC : enzyme-assisted mineralization for the design of biomimetic enamel, TOOTHMIMIC : minéralisation assistée par enzyme pour la conception d'émail biomimétique

Brittany Foley

Biomineralization is the intricately-regulated process by which living organisms form hierarchically ordered mineralized materials. In the human body, the hard tissues are formed of calcium phosphate mineral composites with unique architectures that provide unparalleledmaterial properties. While…, La biominéralisation est le processus complexe par lequel les organismes vivants forment des matériaux minéralisés hiérarchiquement organisés. Dans le corps humain, les tissus durs sont formés de composites minéraux de phosphate de calcium avec des architectures uniques qui fournissent des…

Biomaterials. Université de Technologie de Compiègne, 2024. English. ⟨NNT : 2024COMP2816⟩. ⟨tel-04993906⟩

  • Article dans une revue

Au-Ru/TiO2 prepared by deposition-precipitation with urea: Relevant synthesis parameters to obtain bimetallic particles

Lina Calzada, Catherine Louis, Chang Wan Han, Volkan Ortalan, Rodolfo Zanella

Although Au and Ru are not miscible in the bulk, the paper focusses on the attempts to prepare bimetallic Au-Ru/TiO2 catalysts by deposition-precipitation with urea (co-DPU and sequential DPU, Au then Ru and vice versa). Gold was found already reduced after the preparations of co-DPU and Ru then Au…

Applied Catalysis B: Environmental, 2020, 264, pp.118503. ⟨10.1016/j.apcatb.2019.118503⟩. ⟨hal-04025207⟩

  • 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⟩