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Proton Adsorption onto Alumina: Extension of Multisite Complexation (MUSIC) Theory

Authors
Journal
Journal of Colloid and Interface Science
0021-9797
Publisher
Elsevier
Publication Date
Volume
217
Issue
1
Identifiers
DOI: 10.1006/jcis.1999.6355
Keywords
  • Alumina
  • Nitric Acid
  • Acid Titration
  • Proton Adsorption
  • Surface Heterogeneity
  • Four-Region Isotherm

Abstract

Abstract The adsorption isotherm of protons onto a commercial γ-alumina sample was determined in aqueous nitric acid with sodium nitrate as a background electrolyte. Three discrete regions could be discerned in the log–log plots of the proton isotherm determined at the solution pH 5 to 2. The multisite complexation (MUSIC) model was modified to analyze the simultaneous adsorption of protons onto various kinds of surface species.

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