Affiliation:
1. Tananaev Institute of Chemistry Subdivision of the Federal Research Centre “Kola Science Centre of the Russian Academy of Sciences”
2. Sevastopol State University
Abstract
This paper presents the results of the studies on the effect of the surface tension of the intrapore liquid on the specific surface (SBET) and pore volume (VBJH) of hydrated aluminium oxide (HAO) obtained by treating aluminum potassium alum with ammonia. It has been found that replacing of water, the surface tension of which at the drying temperature is 57.87 mN/m, to acetone (13.19 mN/m) allows to increase both SBET and VBJH nearly 4 times. There are obtained equations, which connect specific surface area and specific pore volume of synthesized samples HAO with surface tension of intrapore area. It is found that in the initial presence of water in the aluminum hydroxide pores, the average pore diameter of the dried product is 3÷4 nm. Treatment of the synthesized sample with acetone increases the average pore diameter of the dried product to 5÷10 nm.
Publisher
Trans Tech Publications, Ltd.
Subject
Mechanical Engineering,Mechanics of Materials,General Materials Science
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