Electrochemical behaviour of iron(III) salen and poly(iron–salen). Application to the electrocatalytic reduction of hydrogen peroxide and oxygen

The electropolymerisation of the iron(III) salen complex is reported, as well as the electrochemical behaviour of the monomer. High scan rate cyclic voltammetry allows us to calculate the lifetime of the cation radical generated during oxidation. Although the films are more difficult to prepare than...

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Bibliographic Details
Published in:Journal of electroanalytical chemistry (Lausanne, Switzerland) Switzerland), 2001-12, Vol.516 (1), p.66-72
Main Authors: Miomandre, F, Audebert, P, Maumy, M, Uhl, L
Format: Article
Language:English
Subjects:
Chemistry
Conjugated polymers
Electrocatalysis
Electrochemistry
Exact sciences and technology
General and physical chemistry
Hydrogen peroxide
Kinetics and mechanism of reactions
Oxygen
Salen
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Summary:The electropolymerisation of the iron(III) salen complex is reported, as well as the electrochemical behaviour of the monomer. High scan rate cyclic voltammetry allows us to calculate the lifetime of the cation radical generated during oxidation. Although the films are more difficult to prepare than several other poly(metal–salen) films (e.g. with nickel or copper), poly(iron–salen) can be well characterised by electrochemistry, either in organic or aqueous medium. The efficiency of the films towards the catalytic electroreduction of hydrogen peroxide and oxygen has been tested, and a different kinetic behaviour has been observed for both substrates, with a much greater efficiency in the case of oxygen.
ISSN:1572-6657
1873-2569
DOI:10.1016/S0022-0728(01)00657-X