Now showing items 1-10 of 431
Hydrothermal treatment of gadolinium oxide in presence of silica
Hydrothermal and solvothermal (isopropanol) treatments of gadolinium oxide and silica were investigated under different pressure and temperature conditions. Products were examined by infrared vibrational spectroscopy (IR), ...
Growth kinetics of vanadium pentoxide nanostructures under hydrothermal conditions
The work reported here involved a study of the growth kinetics of V2O5nH2O nanostructures under hydrothermal conditions. The coarsening process of V2O5nH2O nanoribbons was followed by subjecting the as-prepared suspensions ...
MESOPOROUS ALUMINOSILICATE MOLECULAR SIEVE: CONTROL OF TEXTURAL PROPERTIES BY POST-SYNTHESIS HYDROTHERMAL REATMENT
(Sociedad Chilena de Química, 2003)
Microwave-assisted hydrothermal synthesis followed by heat treatment: A new route to obtain CaZrO3
CaZrO3 nanoparticles were obtained by a new synthesis route: nucleation using the microwave-assisted hydrothermal method (MAH) and crystallization by heat treatment. Structural characterization by X-ray diffraction (XRD) ...
Growth kinetics of tin oxide nanocrystals in colloidal suspensions under hydrothermal conditions
(Elsevier B.V., 2006-09-29)
Colloidal suspensions of tin oxide nanocrystals were synthesized at room temperature by the hydrolysis reaction of tin chloride (II), in an ethanolic solution. The coarsening kinetics of such nanocrystals was studied by ...
Cr/SiO2 mesoporous catalysts: Effect of hydrothermal treatment and calcination temperature on the structure and catalytic activity in the gas phase dehydration and dehydrogenation of cyclohexanol
(Elsevier Science, 2016-01)
Cr/SiO2 mesoporous materials (Cr-MCM-41) were obtained by hydrothermal synthesis. The effect of hydrothermal treatment and calcination temperature on the structure and catalytic behavior of synthesized materials were ...
Porous silica matrix obtained from pyrex class by hydrothermal treatment: Characterization and nature of the porosity
(Amer Ceramic Soc, 2003-07-01)
A novel porous silica matrix has been prepared from Pyrex glass, using hydrothermal treatment under saturated-steam condition. This process makes it possible to obtain, in one step, a silica support formed of a homogeneously ...
Long-range and short-range structures of cube-like shape SrTiO3 powders: microwave-assisted hydrothermal synthesis and photocatalytic activity
We report herein a detailed study on the influence of microwave-assisted hydrothermal (MAH) treatment time on both long and short range structures around Ti atoms of SrTiO3 powders. Few studies have been carried out on ...