SULFATE-MODIFIED ZIRCONIA CATALYSTS - THE ROLE OF SURFACE ELECTRIFICATION ON THE FEATURES OF THE SULFATE ADSORPTION PROCESS

Citation
S. Ardizzone et E. Grassi, SULFATE-MODIFIED ZIRCONIA CATALYSTS - THE ROLE OF SURFACE ELECTRIFICATION ON THE FEATURES OF THE SULFATE ADSORPTION PROCESS, Journal of electroanalytical chemistry [1992], 417(1-2), 1996, pp. 193-195
Citations number
16
Categorie Soggetti
Electrochemistry,"Chemistry Analytical
Journal title
Journal of electroanalytical chemistry [1992]
ISSN journal
15726657 → ACNP
Volume
417
Issue
1-2
Year of publication
1996
Pages
193 - 195
Database
ISI
SICI code
Abstract
Determinations of the adsorption of sulfates at the ZrO2\solution inte rface have been performed at constant ionic strength (10(-2) M KNO3) a nd at two different pH values (isotherm 1, pH 4.5; isotherm 2, pH 2.6) . In both cases the adsorption isotherms presented a langmuirian shape ; parameters describing the adsorption were obtained by processing dat a in the reciprocal Langmuir coordinates. The degree of packing of the adsorbed molecules and the nature of the forces supporting the adsorp tion are also discussed on the basis of literature results.