Surface charge density dependency on Al2O3 content in imogolite

Clays and Clay Minerals
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Abstract

An analysis of the available literature data indicates that the cation exchange capacity and surface charge density of imogolite decrease systematically as the mole % of Al2O3 (i.e. 100 Al2O3/SIO2 + Al2O3) increases. This behavior is analogous to that of synthetic aluminosilicates. In contrast, no relation is apparent between the cation exchange capacity and mole % Al2O3 for allophane. This difference is rather striking and although both are amorphic, i.e. show minimal specific X-ray diffraction effects, imogolite is somewhat more crystalline than allophane (Russell et al., 1969)

Additional publication details

Publication type Article
Publication Subtype Journal Article
Title Surface charge density dependency on Al2O3 content in imogolite
Series title Clays and Clay Minerals
DOI 10.1346/CCMN.1972.0200209
Volume 20
Issue 2
Year Published 1972
Language English
Publisher The Clay Minerals Society
Description 3 p.
First page 101
Last page 103
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