Zobrazeno 1 - 10
of 47
pro vyhledávání: '"Jean-Victor Zanchetta"'
Autor:
Deborah J. Jones, B. Deroide, Guillaume Aptel, Jean-Victor Zanchetta, Jacques Rozière, Fouzia Khattou
Publikováno v:
Microporous and Mesoporous Materials. 47:231-241
Silica-pillared zirconium phosphate shows both micro- and mesoporous character, with an average pore dimension of 23 A after calcination at 480°C. Cu2+ coordinates in solution to the molecular precursor of the silica pillars, 2-aminoethyl-3-aminopro
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::b18a1fe16601a8cd589b1bf7a7a19aae
https://doi.org/10.1016/s1387-1811(01)00383-3
https://doi.org/10.1016/s1387-1811(01)00383-3
Publikováno v:
Journal of Non-Crystalline Solids. 291:78-85
Ge–S glasses are synthesised by melting pure S and Ge elements. Electron paramagnetic resonance (EPR) spectroscopy is used to analyse the paramagnetic defects in these glasses. Paramagnetic defects are also observed in amorphous and polycrystalline
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::8ea9ebd4d0d618666e723c0b7732e3b8
https://doi.org/10.1016/s0022-3093(01)00807-9
https://doi.org/10.1016/s0022-3093(01)00807-9
Autor:
H Schaefer, Jean-Charles Giuntini, L. Maati, S. Devautour, François Henn, J. Vanderschueren, Jean-Victor Zanchetta
Publikováno v:
Solid State Ionics. :1335-1343
The comparison of different experimental methods of dielectric relaxation measurements applied to diverse ionic solids clearly demonstrates that ac conductivity dispersion observed in these solids is of dielectric nature. Then, by analysing the diele
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::aceb05c2c33d293fd803cb5494306331
https://doi.org/10.1016/s0167-2738(00)00574-9
https://doi.org/10.1016/s0167-2738(00)00574-9
Autor:
V. Médout-Marère, Jean-Marc Douillard, H. Belarbi, J. Vanderschueren, Jean-Victor Zanchetta, Jean-Charles Giuntini, A. Haouzi
Publikováno v:
Journal of Colloid and Interface Science. 223:61-73
This work shows that hydration of clays can be studied by means of a new interpretation of thermally stimulated depolarization currents technique. These measurements have been performed on four exchanged natural clays: Na-montmorillonite, Ca-montmori
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::70d27860e3fb1a93e187d487282c4213
https://doi.org/10.1006/jcis.1999.6624
https://doi.org/10.1006/jcis.1999.6624
Autor:
J. Vanderschueren, A. Abdoulaye, Jean-Victor Zanchetta, Jean-Charles Giuntini, F. Di Renzo, G. Chabanis
Publikováno v:
Microporous and Mesoporous Materials. 34:317-325
The dielectric properties of two faujasites, X and Y, were studied in a wide range of frequencies (10–106 Hz) at several temperatures and for various outgassing temperatures TT (100–400°C). Conductivity measurements were undertaken with the aim
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::41e4e8536f3f53e7ce15e70149c64243
https://doi.org/10.1016/s1387-1811(99)00184-5
https://doi.org/10.1016/s1387-1811(99)00184-5
Publikováno v:
Journal of Physics and Chemistry of Solids. 60:813-818
A clay was fired at 800°C, which is the firing temperature generally observed in the manufacture of ancient pottery. The sample was studied by electronic paramagnetic resonance (EPR). The spectra are characteristic of Fe 3+ in different environments
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::22dc0064f63817da16299e1d5f6fe486
https://doi.org/10.1016/s0022-3697(98)00334-5
https://doi.org/10.1016/s0022-3697(98)00334-5
Publikováno v:
Comptes Rendus de l'Académie des Sciences - Series IIC - Chemistry. 2:119-125
Resume Deux defauts paramagnetiques, le centre peroxy et le centre E′, sont mis en evidence dans une argile brute en utilisant la resonance paramagnetique electronique. La raie intense, due aux oxydes de fer, observee dans le spectre RPE de l'argil
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::594eae707439cbf73e5207765b8a6b70
https://doi.org/10.1016/s1387-1609(99)80011-5
https://doi.org/10.1016/s1387-1609(99)80011-5
Autor:
Fouzia Khattou, Guillaume Aptel, Deborah J. Jones, Jean-Victor Zanchetta, B. Deroide, Jacques Rozière
Publikováno v:
Journal of Materials Chemistry. 9:2453-2458
Copper has been used as an electron paramagnetic resonance (EPR) probe for the interlayer environment ofα-zirconium phosphate (α-ZrP) intercalated from hydrolysed/condensed 3-(2-aminoethylamino)propyl-trimethoxysilane solutions. These solids are pr
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::7fd5d3b199d507f4aa74796dd9f12d63
https://doi.org/10.1039/a904427b
https://doi.org/10.1039/a904427b
Autor:
Jacques Vanderschueren, Jean-Victor Zanchetta, Jean-Charles Giuntini, Sabine Devautour, Jean-Marc Douillard, François Henn
Publikováno v:
Comptes Rendus de l'Académie des Sciences - Series IIC - Chemistry. 1:577-586
Resume Quand on soumet a un champ electrique, un echantillon d'aluminosilicate, naturel ou synthetise mais contenant des cations, on observe qu'il se polarise. Le travail presente ici montre qu'en interpretant des mesures de TSDC (thermally stimulate
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::226478080e2fde335097738dd9ac5cfb
https://doi.org/10.1016/s1387-1609(98)80013-3
https://doi.org/10.1016/s1387-1609(98)80013-3
Publikováno v:
Journal of Non-Crystalline Solids. 231:49-57
Paramagnetic Mn2+ ions were incorporated in silica gel during the preparation of the sol. Doped silica xerogels were obtained by heat treatment at different temperatures and studied by 29Si and 129Xe nuclear magnetic resonance (NMR) experiments. Comp
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::60918f1b9f45581978160010d108d231
https://doi.org/10.1016/s0022-3093(98)00377-9
https://doi.org/10.1016/s0022-3093(98)00377-9