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Aluminoxane-epoxi-siloxane hybrids waveguides
(Elsevier B.V., 2008-11-01)
Boehmite-GPTS (GKS-glycidoxypropyltrimethoxysilane) hybrids (BGS) have been prepared by the sol-gel methodology. Spectroscopic properties and structural features have been evaluated from the initial sols to xerogels as a ...
Aluminoxane-epoxi-siloxane hybrids waveguides
(Elsevier B.V., 2008-11-01)
Boehmite-GPTS (GKS-glycidoxypropyltrimethoxysilane) hybrids (BGS) have been prepared by the sol-gel methodology. Spectroscopic properties and structural features have been evaluated from the initial sols to xerogels as a ...
Magnetic resonance study of a vanadium pentoxide gel
(SPRINGER, 2008)
In this work we report results from continuous-wave (CW) and pulsed electron paramagnetic resonance (EPR) and proton nuclear magnetic resonance (NMR) studies of the vanadium pentoxide xerogel V2O5:nH(2)O (n approximate to ...
Er3+/Yb3+ co-activated silica-alumina monolithic xerogels
(Kluwer Academic Publ, 2003-01-01)
Monolithic silica xerogels doped with different concentrations of Er3+, Yb3+ and Al3+ were prepared by sol-gel route. Densification was achieved by thermal treatment in air at 950degreesC for 120 h with a heating rate of ...
Er3+/Yb3+ co-activated silica-alumina monolithic xerogels
(Kluwer Academic Publ, 2003-01-01)
Monolithic silica xerogels doped with different concentrations of Er3+, Yb3+ and Al3+ were prepared by sol-gel route. Densification was achieved by thermal treatment in air at 950degreesC for 120 h with a heating rate of ...
Aplicaciones de aerogeles y xerogeles de carbono como soporte de catalizadores heterogéneos
(Corporación Tecnológica de BogotáNo aplicaBogotá, 2016)
El aerogel y xerogel, son materiales con propiedades únicas como material sólido. Poseen muy baja densidad y son extremadamente porosos, lo que da lugar a que la mayoría de sus volúmenes estén ocupados por aire. Dichas ...