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Preparation, characterisation and electrochemistry of electrodes coated with poly (4-vinylpyridine) bound ruthenium complexes

Authors
Journal
Journal of Electroanalytical Chemistry
0022-0728
Publisher
Elsevier
Publication Date
Volume
113
Issue
1
Identifiers
DOI: 10.1016/s0022-0728(80)80517-1

Abstract

Abstract Strong catalytic effects are observed for the reduction of Ce(IV) and the oxidation of Fe(II) when electrodes are coated with [Ru(bipy) 2Cl poly(4-vinylpyridine)]Cl or [Ru(bipy) 2pyridine poly(4-vinylpyridine)]Cl 2. The interfacial reaction can be described as a mediated electron-transfer process. The attached poly(4-vinylpyridine) ruthenium complexes act as the intermediate medium, and the heterogeneous rate constant is connected to the second-order reaction between the attached polymer and the redox couple in solution. Depending on the magnitude of the rate constant of this second-order reaction, catalytic or inhibition effects are observed.

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