Search Results - "Krafft, J.M."

ZnO Oxygen Vacancies Formation and Filling Followed by in Situ Photoluminescence and in Situ EPR by Drouilly, Charlotte, Krafft, Jean-Marc, Averseng, Frédéric, Casale, Sandra, Bazer-Bachi, Delphine, Chizallet, Céline, Lecocq, Vincent, Vezin, Hervé, Lauron-Pernot, Hélène, Costentin, Guylène

“…Oxygen vacancies of zinc oxide were followed by photoluminescence (PL) and electron paramagnetic resonance (EPR) spectroscopies. The green PL emission was…”
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BEA zeolite modified with iron as effective catalyst for N2O decomposition and selective reduction of NO with ammonia by Boroń, Paweł, Chmielarz, Lucjan, Gurgul, Jacek, Łątka, Kazimierz, Shishido, Tetsuya, Krafft, Jean-Marc, Dzwigaj, Stanislaw

“…•Two-steps postsynthesis procedure allowed incorporating of iron in zeolite framework.•The isolated mononuclear Fe(III) was identified by DR UV–vis, XPS and…”
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Role of oxygen vacancies in the basicity of ZnO: From the model methylbutynol conversion to the ethanol transformation application by Drouilly, Charlotte, Krafft, Jean-Marc, Averseng, Frédéric, Lauron-Pernot, Hélène, Bazer-Bachi, Delphine, Chizallet, Céline, Lecocq, Vincent, Costentin, Guylène

“…[Display omitted] ► The basicity of ZnO can be tuned adapting the nature of the atmosphere of pre-treatment. ► The basic conversion correlates with the…”
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Origins of the deactivation process in the conversion of methylbutynol on zinc oxide monitored by operando DRIFTS by Drouilly, Charlotte, Krafft, Jean-Marc, Averseng, Frédéric, Lauron-Pernot, Hélène, Bazer-Bachi, Delphine, Chizallet, Céline, Lecocq, Vincent, Costentin, Guylène

“…[Display omitted] ► The oxygen vacancy formation in ZnO controls the initial basic conversion of alcohols. ► The reaction deactivation profile is related to…”
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Remarkable effect of the preparation method on the state of vanadium in BEA zeolite: Lattice and extra-lattice V species by Dzwigaj, S., Ivanova, E., Kefirov, R., Hadjiivanov, K., Averseng, F., Krafft, J.M., Che, M.

“…The state of vanadium in two BEA zeolites is investigated by XRD, FTIR, DR UV–vis and EPR. One of the samples, VAlBEA (1.3 wt.% of V), is prepared by…”
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Surface modification and tribological behaviour of titanium and titanium alloys after YAG-laser treatments by Langlade, C., Vannes, A.B., Krafft, J.M., Martin, J.R.

“…Commercially pure Ti and Ti alloys substrates have been treated using a YAG-Nd laser radiation (1.06 μm). A large range of laser parameters have been tested…”
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Thermodynamic brønsted basicity of clean MgO surfaces determined by their deprotonation ability: Role of Mg 2+–O 2− pairs by Chizallet, C., Bailly, M.L., Costentin, G., Lauron-Pernot, H., Krafft, J.M., Bazin, P., Saussey, J., Che, M.

“…The deprotonation ability of clean (i.e., carbonate- and hydroxyl-free) MgO surfaces of various morphologies towards protic molecules, such as propyne and…”
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Catalysts for aromatics hydrogenation in presence of sulfur: reactivities of nanoparticles of ruthenium metal and sulfide dispersed in acidic Y zeolites by Sun, Chenglin, Peltre, Marie-Jeanne, Briend, Marguerite, Blanchard, Juliette, Fajerwerg, Katia, Krafft, Jean-Marc, Breysse, Michèle, Cattenot, Martine, Lacroix, Michel

“…Zeolite-supported ruthenium sulfide and ruthenium metal catalysts were prepared with various Si/Al ratios, with and without extra-framework Al species. They…”
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Thermodynamic brønsted basicity of clean MgO surfaces determined by their deprotonation ability : Role of Mg2+-O2- pairs by CHIZALLET, C, BAILLY, M. L, COSTENTIN, G, LAURON-PERNOT, H, KRAFFT, J. M, BAZIN, P, SAUSSEY, J, CHE, M

“…The deprotonation ability of clean (i.e., carbonate- and hydroxyl-free) MgO surfaces of various morphologies towards protic molecules, such as propyne and…”
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Study of self-assembled monolayers of n-alkanethiol on a surface plasmon resonance fibre optic sensor by Abdelghani, A., Chovelon, J.M., Krafft, J.M., Jaffrezic-Renault, N., Trouillet, A., Veillas, C., Ronot-Trioli, C., Gagnaire, H.

“…Surface plasmon resonance (SPR) is a powerful technique for direct sensitive (bio) chemical detection. This phenomenon can be used to measure the refractive…”
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Selective oxidation of n-butane to maleic anhydride on vanadyl pyrophosphate by Aït-Lachgar, K., Tuel, A., Brun, M., Herrmann, J.M., Krafft, J.M., Martin, J.R., Volta, J.C., Abon, M.

“…In a previous publication ( J. Catal. 171, 383 (1997)) we have shown that the oxidation of a pure and well-crystallized (VO) 2P 2O 7 catalyst at 500°C for…”
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Selective oxidation of n-butane to maleic anhydride on vanadyl pyrophosphate. II. Characterization of the oxygen-treated catalyst by electrical conductivity, Raman, XPS and NMR spectroscopies by Ait Lachgar, K., Tuel, A., Brun, M., Herrmann, J.M., Krafft, J.M., Martin, J.R., Volta, J.C., Abon, M.

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