Novel chromium(III)/(VI) adducts of XPS-determined mixed valence,from electroreduced chromium(VI) |
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| Authors: | David R Rosseinsky Gerald K Muthakia Colin L Honeybourne Richard J Ewen |
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| Institution: | (1) Department of Chemistry, The University, EX4 4QD Exeter, UK;(2) Faculty of Applied Sciences, University of the West of England, Coldharbour Lane, BS16 1QY Frenchay, Bristol, UK |
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| Abstract: | Summary Conditions of chromium(VI) and acidity have been found at which a novel brown deposit from electroreduction. Its 1 1 chromium(III):chromium(VI) composition, and the 21 ratio of the alkali-leached product, were established by XPS. The composition bounds for electrodeposition of the 11 solid and the competing insulative chromium(III) film were established electrochemically. Earlier reported chromium(III) and chromium(VI) solid or gels, some deposited from alkali, differ in colour and composition properties. |
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