Electrochemical exchange currents of palladium and palladium alloy electrodes as a function of their hydrogen contents

Abstract

Electrochemical exchange currents i₀ have been measured on palladium/hydrogen and on gold (18.8 %)/palladium/hydrogen electrodes as a function of their hydrogen contents. The values of i₀ are markedly dependent upon the hydrogen content of the electrodes. Results are interpreted in terms of the expected dependence of i₀ upon the equilibrium hydrogen pressure corresponding to the hydrogen content of the electrodes.