Electrochemical study demonstrates strict voltammetric reversibility of the hydrogen couple at platinum electrodes, confirming corrected theoretical models for non-unity stoichiometry.
Cyclic voltammetric curves obtained at Pt electrodes for the hydrogen couple, H(+)/H(2), fit very well the Shuman theory, as corrected, for reversible electrode processes of other than 1:1 stoichiometry. Good agreement was obtained for acid concentrations in the millimolar range and for normal scan rates, which minimize the effect of the adsorption peaks. An error in Shuman's equation for potential is corrected. Voltammograms obtained at Pt microelectrodes fit well the theoretical simulated data.
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Jaworski et al. (1998) studied this question.
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