Laboratoire de réactivité de surface

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  • Article dans une revue

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⟩

  • Article dans une revue

Production of Laccase by Recombinant Yarrowia lipolytica from Molasses: Bioprocess Development Using Statistical Modeling and Increase Productivity in Shake-Flask and Bioreactor Cultures

Farshad Darvishi, Marzieh Moradi, Catherine Madzak, Claude Jolivalt

Laccases are used in numerous applications, from green degradation of various xenobiotic compounds, waste detoxification, textile dye bleaching, and delignification of lignocellulose materials to biofuel production. In this study, the recombinant Yarrowia lipolytica YL4 strain carrying the white-…

Applied Biochemistry and Biotechnology, 2017, 181 (3), ⟨10.1007/s12010-016-2280-8⟩. ⟨hal-01531721⟩

  • Article dans une revue

Surface segregation in AuPd alloys: Ab initio analysis of the driving forces

Jérôme Creuze, Hazar Guesmi, Christine Mottet, Beien Zhu, Bernard Legrand

In order to determine the energetic driving forces for surface segregation in AuPd alloys, we use a combined approach coupling ab initio calculations and an analysis via an effective Ising model. Previously, this approach has been used successfully in the framework of N-body interatomic potentials…

Surface Science : A Journal Devoted to the Physics and Chemistry of Interfaces, 2015, 639, pp.48 - 53. ⟨10.1016/j.susc.2015.04.017⟩. ⟨hal-01378430⟩

  • Communication dans un congrès

Unveiling the M−F/OH bonding and anionic ordering in Mg, Zn, Cu−based hydroxyfluorides for the design of basic catalysts

Helies Boumali, Matthew R. Suchomel, Étienne Durand, Thomas Onfroy, Guillaume Laugel, Hélène Pernot

Functional inorganic materials, mostly oxides but also fluorides, sulfides, or nitrides has led to the development of many modern technologies. The usual way to improve the chemical and physical properties of these materials was the cationic substitution in order to tune the chemical bonding. These…

15ème Journées Thématiques de l'Association Bordelaise de Cristallographie - JABC 2023, Association Bordelaise de Cristallographie, Jun 2023, Bordeaux, France. ⟨hal-04628119⟩

  • Communication dans un congrès

Deciphering interfacial capacitance of passive electrode : contribution of the double layer

Oumaïma Gharbi, Mai T.T. Tran, Mark E Orazem, Bernard Tribollet, Mireille Turmine, Vincent Vivier

The analysis of the EIS response of passive film remains a difficult challenge since it usually results in a non-ideal behavior of the dielectric properties of the film and mainly relies on the assumption that the contribution of the double layer can be neglected. The later an approximation can be…

12th International Symposium on Electrochemical Impedance Analysis (EIA), ISE, Nov 2021, Online conference, Germany. ⟨hal-04013493⟩

  • Communication dans un congrès

On the graphical analysis of the impedance response of passive electrodes

Mai T.T. Tran, Oumaïma Gharbi, Mark E Orazem, Bernard Tribollet, Mireille Turmine, Vincent Vivier

The analysis of the capacitive behavior of a passive electrode is often a difficult subject because the response obtained by electrochemical impedance spectroscopy (EIS) is characterized by a non-ideal behavior that we try to model by using a constant phase element (CPE) [1, 2]. In doing so, both…

241st ECS Meeting of The Electrochemical Society, ECS, May 2022, Vancouver (CA), Canada. ⟨hal-03994070⟩

  • Article dans une revue

Synthesis of Well-Defined Dawson-Type Poly(N,N-diethylacrylamide) Organopolyoxometalates

Jennifer Lesage de la haye, Patricia Beaunier, Laurent Ruhlmann, Bernold Hasenknopf, Emmanuel Lacôte, Jutta Rieger

An organotin-substituted Dawson-type phosphotungstate was covalently linked to a trithiocarbonate group by postfunctionalization methods. This organopolyoxometalate led to a series of polyoxometalate (POM)–poly(N,N-diethylacrylamide) hybrids in a controlled way through reversible addition–…

ChemPlusChem, 2014, 79 (2), pp.250-256. ⟨10.1002/cplu.201300346⟩. ⟨hal-01121569⟩

  • Article dans une revue

Structure, Orientation and Stability of Lysozyme Confined in layered Materials

Sébastien Balme, Régis Guégan, Jean-Marc Janot, Maguy Jaber, Mathilde Lepoitevin, Philippe Dejardin, Xavier Bourrat, Mikael Motelica-Heino

The confinement of lysozyme in 3 layered materials based on montmorillonite and lamellar double hydroxide exhibiting different surface charges was studied. The protein structure and orientation in these materials were determined by X-Ray diffraction, time resolved fluorescence and fluorescence…

The Royal Society of Chemistry, 2013, 9 (11), pp.3188-3196. ⟨10.1039/C3SM27880H⟩. ⟨insu-00779421v2⟩

  • Communication dans un congrès

Relantionship between the feedstock powders reactivity and the Electrochemical properties of 316L Stainless steel obtained by laser powder bed fusion

Alexis Fouchereau, Beatriz Puga, Hicham Maskrot, Fernando Lomello, Oumaïma Gharbi, Mireille Turmine, Vincent Vivier

3D printing by Laser-Powder Bed Fusion (L-PBF) is an innovative process using a high energy density laser to melt the raw material into a powder form. Previous studies have shown that the powder properties are crucial for the density, quality and microstructure of the materials produced [1, 2] but…

74th Annual ISE Meeting, Sep 2023, Lyon, France. ⟨cea-04584093⟩

  • Communication dans un congrès

Accelerated Discovery of Corrosion Resistant Materials for Molten Salt Applications

Fanny Balbaud, Sofiane Achache, Céline Cannes, Charly Carriere, Sylvie Delpech, Clara Desgranges, Mohamed El Garah, Oumaïma Gharbi, Stéphane Gorsse, Mohamed Goune, Rafael Herschberg, Ekaterina Kurchavova, Laure Martinelli, Bernard Normand, Kevin Perrin, Frédéric Sanchette, Eric Schmucker, Franck Tancret, Mireille Turmine, Annabelle Vernouillet, Vincent Vivier, Sheng Yuan

In the frame of the French initiative DIADEM (DIscovery Acceleration for the deployment of Emerging Materials), the targeted A-DREAM project aims to develop a generic approach to accelerate the discovery of materials and coatings resistant to corrosion in severe environments. For this, the A-DREAM…

75th Annual Meeting of the International Society of Electrochemistry, Aug 2024, Montréal, Canada. ⟨cea-04852474⟩