Abstract
This paper communicates a more general derivation of the Iyer-Pickering-Zamenzadeh (IPZ) analysis of hydrogen absorption. It is applicable to metal/electrolyte systems under Frumkin adsorption conditions for the discharge-recombination process of hydrogen evolution, as well as to Langmuir adsorption conditions covered by the original derivation. As such, it does not require prior knowledge of the dimensionless factor f that describes the deviation from ideal Langmuir behavior. This analysis appropriately reduces to the original IPZ analysis for Langmuir adsorption conditions for which It yields the value of (f ) as well as the other unknowns in the system: the discharge and recombination rate constants, the exchange current density the kinetic-diffusion constant the hydrogen surface coverage and the hydrogen concentration in the metal at the charging surface © 2001 The Electrochemical Society. All rights reserved.
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