Now showing items 31-40 of 321
The preparation and application of silica-zirconia xerogel as potentiometric sensor for chromium(VI)
(Academic Press IncSan DiegoEUA, 1999)
Congo red immobilized on a silica/aniline xerogel: Preparation and application as an amperometric sensor for ascorbic acid
(Wiley-v C H Verlag GmbhWeinheimAlemanha, 2005)
A nonisothermal study of the kinetics of the nanoporosity elimination in sonogels-derived silica xerogels
(Amer Chemical Soc, 2005-03-10)
A nonisothermal study of the kinetics of the nanoporosity elimination in monolithic silica xerogels, prepared from acid and ultrasound catalyzed hydrolysis of tetraethylortosilicate (TEOS), has been carried out by means ...
Visible and near-infrared luminescent Eu(3+) or Er(3+) doped laponite-derived xerogels and thick films: Structural and spectroscopic properties
(ELSEVIER SCIENCE SA, 2009)
Laponite-derived materials represent promising materials for optical applications. In this work, Eu(3+)- or Er(3+)-doped laponite xerogels and films were prepared from colloidal dispersion. Homogeneous, crack-free and ...
Visible and near-infrared luminescent Eu3+ or Er3+ doped laponite-derived xerogels and thick films: Structural and spectroscopic properties
(Elsevier B.V. Sa, 2009-01-15)
Laponite-derived materials represent promising materials for optical applications. In this work, Eu3+- or Er3+-doped laponite xerogels and films were prepared from colloidal dispersion. Homogeneous, crack-free and transparent ...
SAXS measurements of the porosity in Cu(II)-doped SnO2 xerogels during crystallization
The small-angle X-ray scattering (SAXS) technique was used to study the porosity which develops in Cu(II)-doped SnO2 monolithic xerogels during crystallization. The influence of the upper temperature of heat-treatment and ...
Anisotropy of crystallite growth during sintering of SnO2 xerogels
The crytallite and pore-size evolution during isothermal sintering (400 ≤ T ≤ 700°C) of SnO2 xerogels was studied by X-ray line broadening and nitrogen adsorption-desorption isotherms. The experimental results show a strong ...
Effect of mesoporosity of vanadium oxide prepared by sol-gel process as cathodic material evaluated by cyclability during Li(+) insertion/deinsertion
The effect of pore structure on the behavior of lithium intercalation into an electrode containing porous V(2)O(5) film has been investigated and compared with the electrode containing a non-porous V(2)O(5) film. X-ray ...
Optical characteristics of Er3+-Yb3+ doped SnO2 xerogels
(Elsevier B.V., 2014)