Surface charge density dependency on Al2O3 content in imogolite

E. A. Jenne

doi:10.1346/ccmn.1972.0200209

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Surface charge density dependency on Al2O3 content in imogolite

E. A. Jenne

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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 Al 2 O 3 (i.e. 100 Al 2 O 3 /SIO 2 + Al 2 O 3 ) increases. This behavior is analogous to that of synthetic aluminosilicates. In contrast, no relation is apparent between the cation exchange capacity and mole % Al 2 O 3 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)

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E. A. Jenne. 2024-07-01. Surface charge density dependency on Al2O3 content in imogolite. https://doi.org/10.1346/ccmn.1972.0200209

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