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Heteropolyacids with Keggin structure supported on silica-alumina
(Inderscience Enterprises, 2006-08-16)
The behaviour of molybdophosphoric acid, with Keggin structure, supported on different silica-alumina mixtures, obtained by sol-gel method, was studied. Different techniques were used to synthesise the supports. In one of ...
Chemical and physical changes related to the deactivation of alumina used in catalytic epoxidation with hydrogen peroxide
(Academic Press Inc Elsevier ScienceSan DiegoEUA, 2007)
Elaboration of boehmite nano-powders by spray-pyrolysis
(Elsevier B.V. Sa, 2009-03-05)
Boehmite (gamma-AlOOH) synthesis have been investigated using a spray pyrolysis (SP) device starting from a stable sol of Al-tri-sec-butoxide peptized by nitric acid. Free spherical particles from 100 to 500 nm have been ...
Elaboration of boehmite nano-powders by spray-pyrolysis
(Elsevier B.V. Sa, 2009-03-05)
Boehmite (gamma-AlOOH) synthesis have been investigated using a spray pyrolysis (SP) device starting from a stable sol of Al-tri-sec-butoxide peptized by nitric acid. Free spherical particles from 100 to 500 nm have been ...
Monolithic diphasic gels of mullite by sol-gel process under ultrasound stimulation
(1998-12-01)
Diphasic gel in the mullite composition was prepared from a colloidal sol of boehmite mixed with a hydrolyzed tetraethoxisilane (TEOS) solution. The boehmite sol was obtained by peptization of a poorly crystallized or very ...
Monolithic diphasic gels of mullite by sol-gel process under ultrasound stimulation
(1998-12-01)
Diphasic gel in the mullite composition was prepared from a colloidal sol of boehmite mixed with a hydrolyzed tetraethoxisilane (TEOS) solution. The boehmite sol was obtained by peptization of a poorly crystallized or very ...
Er3+/Yb3+ co-activated silica-alumina monolithic xerogels
(Kluwer Academic Publ, 2014)
Preparation of hierarchically structured porous aluminas by a dual soft template method
(Elsevier B.V., 2010-07-01)
A general and potentially easy method of synthesizing aluminas possessing hierarchical pore structure is presented in this paper. This method is based on the integration of the sol-gel process with micelles of poly(ethylene ...
SYNTHESIS AND CHARACTERIZATION OF POLY(METHYL METHACRYLATE)-SILICA, -ALUMINA AND -SILICA-ALUMINA SOL-GEL NANOCOMPOSITES
(Sociedad Chilena de Química, 2011)