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Electrochemistry of the aqueous europium(III)/europium(II) redox couple at conductive diamond electrodes

2002; Elsevier BV; Volume: 533; Issue: 1-2 Linguagem: Inglês

10.1016/s0022-0728(02)01073-2

1873-2569

Sergio Ferro, Achille De Battisti,

Molecular Junctions and Nanostructures

In the present paper, the electrochemical behavior of the Eu(III)/Eu(II) redox couple has been investigated at conductive diamond thin film electrodes. Measurements have been carried out by means of cyclic voltammetry, quasi-steady polarization curves (low-overpotential approximation) and ac impedance. The experimental picture indicates that the kinetics of electron transfer are more complex than that suggested by a classical outer-sphere mechanism.