Measurement of acid–base properties on metal oxide surfaces in aqueous solution
- 1 January 1981
- journal article
- research article
- Published by Royal Society of Chemistry (RSC) in Journal of the Chemical Society, Faraday Transactions 1: Physical Chemistry in Condensed Phases
- Vol. 77 (10) , 2451-2463
- https://doi.org/10.1039/f19817702451
Abstract
A potentiometric acid–base titration method was used to investigate the surface properties of metal oxides in aqueous solution. The metal oxides used were SiO2, γ-Al2O3, ZrO2, TiO2, SiO2–Al2O3, SiO2–ZrO2 and TiO2–ZrO2. The amounts of protonated hydroxyl group [graphic omitted] M—OH+ 2 and of ionized hydroxyl group [graphic omitted] M—O– present were studied as a function of solution pH. The results are consistent with those obtained by a n-butylamine titration method or a gas adsorption method.Keywords
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