Porous Properties of γ-Alumina/Potassium Aluminosilicate Gel Composites Prepared by Selective Leaching and Precipitation Method View Full Text


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Article Info

DATE

2002-08

AUTHORS

Jadambaa Temuujin, Kiyoshi Okada

ABSTRACT

Composites of mesoporous γ-alumina and potassium aluminosilicate (KAS) gel were prepared by selective leaching of calcined kaolinite using KOH solution followed by neutralization of the solution at pH 5.5 with nitric acid. The porous properties of the composites were characterized by N2 gas adsorption and their microtextures were observed by electron microscope. The resultant composites have specific surface areas of about 290 m2/g, pore sizes of about 1.85 nm in radius and pore volumes of about 0.5 ml/g. The porous properties of the composites are compared with those of γ-alumina and KAS gel. More... »

PAGES

155-159

References to SciGraph publications

Identifiers

URI

http://scigraph.springernature.com/pub.10.1023/a:1020838610352

DOI

http://dx.doi.org/10.1023/a:1020838610352

DIMENSIONS

https://app.dimensions.ai/details/publication/pub.1032104839


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