• Article dans une revue

Dimerization of Uracil in a simulated Mars-like UV radiation environment

Laura Rouquette, Fabien Stalport, Hervé Cottin, Cyril Colas, Thomas Georgelin, Naïla Chaouche-Mechidal, Jerome Lasne, Sara Mahfouf, Franćois Raulin, Laura Selliez, Cyril Szopa, Patrice Coll

The search for organic molecules at the surface of Mars is a key objective in astrobiology, given that many organic compounds are possible biosignatures and their presence is of interest with regard to the habitability of Mars. Current environmental conditions at the martian surface are harsh and…

Astrobiology, 2020, 20 (11), pp.1363-1376. ⟨10.1089/ast.2019.2157⟩. ⟨hal-03032302⟩

• Article dans une revue

Brake wear (nano)particle characterization and toxicity on airway epithelial cells in vitro

Chloé Puisney, Evdokia K Oikonomou, Sophie Nowak, Alexandre Chevillot, Sandra Casale, Armelle Baeza-Squiban, Jean-François Berret

Particulate air pollution results from different sources, among which those related to road traffic have a significant impact on human health. Combustion-derived particles emitted by thermal engines have been incriminated and are now better controlled. In contrast, non-exhaust emission sources…

Environmental science‎.Nano, 2018, 5 (4), pp.1036-1044. ⟨10.1039/C7EN00825B⟩. ⟨hal-02342487⟩

• Article dans une revue

Polypyrrole nanostructures modified with mono- and bimetallic nanoparticles for photocatalytic H2 generation

Xiaojiao Yuan, Diana Dragoe, Patricia Beaunier, Daniel Bahena Uribe, Laurence Ramos, Maria Guadalupe Méndez-Medrano, Hynd Remita

Conjugated polymer polypyrrole nanostructures modified with bimetallic (Pt–Ni) nanoparticles are very active for hydrogen generation and a synergetic effect is obtained by alloying Pt with Ni.

Journal of Materials Chemistry A, 2020, 8 (1), pp.268-277. ⟨10.1039/C9TA11088G⟩. ⟨hal-03437340⟩

• Article dans une revue

High-Current-Density CO2-to-CO Electroreduction on Ag-Alloyed Zn Dendrites at Elevated Pressure

Sarah Lamaison, David Wakerley, Juliette Blanchard, David Montero, Gwenaelle Rousse, Dimitri Mercier, Philippe Marcus, Dario Taverna, Domitille Giaume, Victor Mougel, Marc Fontecave

High-surface-area Ag-Zn-alloyed electrodes undertake the rapid conversion of CO 2 to CO. This has the combined benefit of removing CO 2 and producing an industrially relevant chemical synthon. At atmospheric pressure, the electrodes plateau in activity owing to the mass-transport limitation of CO 2…

Joule, 2020, 4 (2), pp.395-406. ⟨10.1016/j.joule.2019.11.014⟩. ⟨hal-02919030⟩

• Article dans une revue

Halide-free CO 2 cycloaddition onto styrene oxide catalysed by first row transition-metal derivatives of polyoxotungstates

Jingjing Ren, Franck Launay, Richard Villanneau, Anna Proust

Quaternary ammonium salts of metal derivatives of polyoxometalates [XW11O39M(H2O)]n- (X = P, Si; M = Cr, Mn, Co, Ni, Zn) were successfully tested instead of quaternary ammonium halides as catalysts in the cycloaddition of CO2 to styrene oxide. Remarkably, they gave very satisfactory yields of…

Chemical Communications, 2024, ⟨10.1039/D4CC00522H⟩. ⟨hal-04545491⟩

• Article dans une revue

Advantages of Covalent Immobilization of Metal‐Salophen on Amino‐Functionalized Mesoporous Silica in Terms of Recycling and Catalytic Activity for CO 2 Cycloaddition onto Epoxides

Matthieu Balas, Sébastien Beaudoin, Anna Proust, Franck Launay, Richard Villanneau

NiII and MnIII Schiff base complexes (Salophen-Ni and Salophen-MnCl) bearing a pending carboxylic group were prepared and characterized. Both complexes were grafted onto a mesoporous amino-functionalized SBA-15 silica, by formation of an amide function between the propylamine groups of the support…

European Journal of Inorganic Chemistry, 2021, 2021 (16), pp.1581-1591. ⟨10.1002/ejic.202100150⟩. ⟨hal-03485785⟩

• Communication dans un congrès

Structural and computational analysis of Y0.88Ni3-xMnx compounds to understand the localization of Mn atoms

J Monnier, J Zhang, G Fedlouk, J Chan, L Lei, S Ling, L. Laversenne, E Kurchavova, M Turmine, V Vivier, M Mateos, F Cuevas

Intermetallic compounds ABn (A=rare earth, Mg; B=early transition metal, 2≤n≤5) can store large amount of hydrogen. They have been investigated as negative electrode materials for Ni-MH batteries due to their outstanding electrochemical properties, including in new protic ionic liquid (PIL)…

Association Française de Cristallographie, Jul 2024, Montpellier, France. ⟨hal-04958759v2⟩

• Article dans une revue

Hydrodechlorination of 1,2-dichloroethane on nickel loaded Beta zeolite modified by copper: Influence of nickel and copper state on product selectivity

Rafal Baran, Anna Srebowata, Sandra Casale, D. Łomot, Stanislaw Dzwigaj

Influence of copper addition to nickel containing zeolite on activity and product selectivity in the hydrodechlorination of 1,2-dichloroethane was investigated. Ni2.0SiBEA and Cu2.0Ni2.0SiBEA zeolites were prepared by a two-steps postsynthesis method which consist of (1) creation of vacant T-atom…

Catalysis Today, 2014, 226, pp.134-140. ⟨10.1016/j.cattod.2013.09.005⟩. ⟨hal-01044872⟩

• Article dans une revue

Influence of thermal treatment on the dispersion of MoS2 into MCM-41 and SBA-15 supports: TEM study and hydrotreating activity.

A. Sampieri-Croda, Joël Blanchard, Michèle Breysse, Katia Fajerwerg, C. Louis, Sylvette Brunet, Guy Perot, Stéphane Pronier

Stud. Surf. Sci. Catal, 2005, 158, pp.885-892. ⟨hal-00288837⟩

• Article dans une revue

Baicalein-modified hydroxyapatite nanoparticles and coatings with antibacterial and antioxidant properties

Estelle Palierse, Christophe Hélary, Jean-Marc Krafft, Isabelle Génois, Sylvie Masse, Guillaume Laurent, Maria I Alvarez Echazu, Mohamed Selmane, Sandra Casale, Laetitia Valentin, Antoine Miche, Ben C.L. Chan, Clara B.S. Lau, Margaret Ip, Martin F Desimone, Thibaud Coradin, Claude Jolivalt

Aseptic loosening and bacterial infections are the two main causes of failure for metallic implants used for joint replacement. A coating that is both bioactive and possesses antimicrobial properties may address such shortcomings and improve the performance of the implant. We have sought to study…

Materials Science and Engineering: C, 2021, 118, pp.111537, 1-13. ⟨10.1016/j.msec.2020.111537⟩. ⟨hal-02946075⟩