Zobrazeno 1 - 10
of 40
pro vyhledávání: '"J.-B. d'Espinose de la Caillerie"'
Publikováno v:
Clay Minerals. 38:49-61
The alkali leaching of two aluminosilicates, kaolinite and metakaolinite, with aqueous NaOH has been studied. Both silicates gave hydroxysodalite (HS) with or without the evanescent zeolite NaA. X-ray diffraction and high-resolution 29Si and 27Al MAS
Autor:
Michael Powalla, J. Maquet, J.-B. d'Espinose de la Caillerie, Jean-François Guillemoles, P.E. Stallworth, V. Lyakovitskaya, B. Tomlinson, M. V. Yakushev, F. Babonneau
Publikováno v:
Thin Solid Films. 387:235-238
Polycrystalline n- and p-type CuInSe 2 (CIS) has been examined via 63 Cu-NMR. Results show that a combination of interactions significantly affect the response including dipolar, quadrupolar and chemical shifts (possibly paramagnetic+Knight shift). I
Publikováno v:
Journal of Colloid and Interface Science. 215:296-299
In this paper it is demonstrated unequivocally by solid-state nuclear magnetic resonance and diffuse reflectance infrared Fourier transform spectroscopies that, at high temperature, hydrogen reacts directly with pyrogenic silica to form stable hydrid
Autor:
J. B. d'Espinose de la Caillerie, Patrick Belgrand, André Pierre Legrand, Marc Bohner, Jacques Lemaître
Publikováno v:
Journal of Materials Science: Materials in Medicine. 7:457-463
The effects of synthesis conditions on the quantitative preparation of α-tricalcium phosphate (α-TCP) have been investigated. The following parameters of the synthesis were considered: nature of the starting material-Ca-deficient hydroxyapatite, DA
Publikováno v:
Microporous Materials. 5:135-142
It was shown previously that the stability of the porous structure of sepiolite, a fibrous magnesio-silicate formed of staggered talc sheets, was improved by isomorphic replacement of silicon by aluminum in the tetrahedral sheet and some replacement
Autor:
Olivier Clause, C. Bobin, E Merlen, Bernadette Rebours, J.-B. d'Espinose de la Caillerie, P Gueroult
Publikováno v:
Applied Clay Science. 10:45-56
The adsorption of Ni(II) ammine complexes from aqueous solutions onto γ-alumina at neutral pH (pH = 7.2) and ambient temperature has been investigated by X-ray diffraction, EXAFS, transmission and analytical electron microscopy. The formation of dep
Publikováno v:
Clay Minerals. 29:313-318
A 29Si MAS-NMR one-pulse and ﹛1H﹜ CP comparative study of sepiolite, folded sepiolite, aluminated sepiolite, and palygorskite was conducted. The three main resonances of sepiolite at -92.0 ± 0.1, —94.3 + 0.1, and — 97.8 ± 0.1 p.p.m. were as
Publikováno v:
ChemInform. 23
Fibrous mineral sepiolite is formed of staggered talc sheets. The discontinuous octahedral layers provide for infinite channels along the fiber axis with cross-section ~(10 × 4) A2. During crystal growth, a second set of irregularly shaped pores wit
Publikováno v:
ChemInform. 29
Publikováno v:
Catalysis Today. 14:125-140
Fibrous mineral sepiolite is formed of staggered talc sheets. The discontinuous octahedral layers provide for infinite channels along the fiber axis with cross-section ~(10 × 4) A2. During crystal growth, a second set of irregularly shaped pores wit