• 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⟩

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Characterization of mesoporous alumina prepared by surface alumination of SBA-15

Manuel Baca, Emmanuel de La Rochefoucauld, Emmanuelle Ambroise, Jean-Marc Krafft, Redouane Hajjar, Pascal P. Man, Xavier Carrier, Juliette Blanchard

Mesoporous aluminas of controlled pore sizes were synthesized by multiple grafting of Al isopropoxide in organic solvents on mesoporous silica SBA-15. These materials were characterized by N2 physisorption, TEM, XRD, 27Al NMR and their surface chemical properties were probed by DRIFT, cumene…

Microporous and Mesoporous Materials, 2008, 110, pp.232-241. ⟨hal-00260914⟩

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Hybrid organic-inorganic materials based on hydroxyapatite structure

Sana Ben Moussa, Hassen Bachouâ, Michel Gruselle, Patricia Beaunier, Alexandrine Flambard, Béchir Badraoui

Journal of Solid State Chemistry, 2017, 248, pp.171 - 177. ⟨10.1016/j.jssc.2017.02.004⟩. ⟨hal-01547272⟩

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Cation Migration and Structural Deformations upon Dehydration of Nickel-Exchanged NaY Zeolite: A Combined Neutron Diffraction and Monte Carlo Study

Wilfried Louisfrema, Jean-Louis Paillaud, Florence Porcher, Elsa Perrin, Thomas Onfroy, Pascale Massiani, Anne Boutin, Benjamin Rotenberg

Combining neutron diffraction and classical molecular simulations, we describe the cation migration and associated structural changes taking place in a Ni-exchanged NaY faujasite zeolite upon stepwise dehydration from room temperature up to 400 °C. The cation redistribution between sites and the…

Journal of Physical Chemistry C, 2016, 120 (32), pp.18115-18125. ⟨10.1021/acs.jpcc.6b05657⟩. ⟨hal-01485629⟩

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Real-time colorimetric hydration sensor for sport activities

Yubin Zhou, Htet Han, Hnin Pwint Phyuson Naw, Alice Venecia Lammy, Chee Hong Goh, Souhir Boujday, Terry W.J. Steele

Dehydration and over-hydration are a serious health concern in endurance sport activities, especially in tropical climates. Current methods for detection are inconvenient and not widely applied. Point-of-care hydration monitoring during a sport event is an ideal preventative therapy, as it allows…

Materials & Design, 2016, 90, pp.1181 - 1185. ⟨10.1016/j.matdes.2015.06.078⟩. ⟨hal-01548066⟩

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Charge transport through redox active [H₇P₈W₄₈O₁₈₄]^33- polyoxometalates self-assembled onto gold surfaces and gold nanodots

K. Dalla Francesca, Stéphane Lenfant, M. Laurans, F. Volatron, G. Izzet, Vincent Humblot, C. Methivier, David Guérin, A. Proust, Dominique Vuillaume

Polyoxometalates (POMs) are redox-active molecular oxides, which attract growing interest for their integration into nano-devices, such as high-density data storage non-volatile memories. In this work, we investigated the electrostatic deposition of the negatively charged [H7P8W48O184]33− POM onto…

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A new glance at ruthenium sorption mechanism on hydroxy, carbonate, and fluor apatites: Analytical and structural studies

K. Tõnsuaadu, M. Gruselle, F. Villain, R. Thouvenot, M. Peld, V. Mikli, R. Traksmaa, Patrick Gredin, Xavier Carrier, L. Salles

The sorption mechanism of Ru3+ ions on hydroxy (HAp), carbonate (CO3HAp), and fluor apatites (FAp) has been studied in detail. Ru apatites were obtained by reaction of the apatites with RuCl3 in aqueous solution. The structure and composition of the ruthenium-modified apatites were studied by…

Journal of Colloid and Interface Science, 2006, 304, pp.283-291. ⟨hal-00160825⟩

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Insight into the mechanism of action of temporin-SHa, a new broad-spectrum antiparasitic and antibacterial agent

Zahid Raja, Sonia André, Feten Abbassi, Vincent Humblot, Olivier Lequin, Tahar Bouceba, Isabelle Correia, Sandra Casale, Thierry Foulon, Denis Sereno, Bruno Oury, Ali Ladram

Antimicrobial peptides (AMPs) are promising drugs to kill resistant pathogens. In contrast to bacteria, protozoan parasites, such as Leishmania, were little studied. Therefore, the antiparasitic mechanism of AMPs is still unclear. In this study, we sought to get further insight into this mechanism…

PLoS ONE, 2017, 12 (3), pp.e0174024. ⟨10.1371/journal.pone.0174024⟩. ⟨hal-01517346⟩

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Carbonates thermal decomposition kinetics and their implications in using Rock-Eval ® analysis for carbonates identification and quantification

François Baudin, Nicolas Bouton, Adrien Wattripont, Xavier Carrier

In 2014, Pillot et al. [Identification and quantification of carbonate species using Rock-Eval pyrolysis, Oil Gas Sci. Technol. – Rev. IFP 69, 341–349. https://doi.org/10.2516/ogst/2012036] proposed to use the Rock- Eval® method as a reliable tool to identify and quantify carbonates in solid…

Science and Technology for Energy Transition, 2023, ⟨10.2516/ogst/2012036]⟩. ⟨hal-04390156⟩

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Experimental clues for detecting biosignatures on Mars

J.-C. Viennet, S. Bernard, Corentin Le Guillou, P. Jacquemot, E. Balan, L. Delbes, B. Rigaud, T. Georgelin, M. Jaber

Forthcoming exploration of Mars aims at identifying fossil biosignatures within ancient clay-rich formations. The subsurface of Mars has mostly acted as a giant freezer for the last 4 Gyr, thereby preserving potential remains of martian life. Yet, volcanism and impactors have periodically triggered…

Geochemical Perspectives Letters, 2019, Geochemical Perspectives Letters, 12, pp.28-33. ⟨10.7185/geochemlet.1931⟩. ⟨hal-02415460⟩