✦ LIBER ✦

Specific surface area of spinel oxides by Zn2+-ion adsorption (ZIA). Case of dry and hydrous Co3O4: feasibility and limitation

✍ Scribed by P. Chartier; C. Hitz; J.-F. Koenig

Publisher: Elsevier Science
Year: 1997
Tongue: English
Weight: 500 KB
Volume: 42
Category: Article
ISSN: 0013-4686
DOI: 10.1016/s0013-4686(97)00022-4

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✦ Synopsis

powders prepared by thermal decomposition of nitrate (TDN) and by precipitation in aqueous solution (PAS) have been investigated in relation with the zinc-ion adsorption (ZIA) method of in situ measurement of specific areas at the solid-liquid interface. The ZIA method seems feasible with dry TDN powders, while high solubility and cation exchanges hinder the method with hydrous PAS powders. The ZIA surface areas of dry Co304 are approximately f the BET surface areas.