Investigation of water electrolysis by spectral analysis. I. Influence of the current density - Sorbonne Université Access content directly
Journal Articles Journal of Applied Electrochemistry Year : 1989

Investigation of water electrolysis by spectral analysis. I. Influence of the current density

Abstract

The potential (or current) fluctuations observed under current (or potential) control during gas evolution were analysed by spectral analysis. The power spectral densities (psd) of these fluctuations were measured for hydrogen and oxygen evolution in acid and alkaline solutions at a platinum disk electrode of small diameter. Using a theoretical model, some parameters of the gas evolution were derived from the measured psd of the potential fluctuations, such as the average number of detached bubbles per time unit, the average radius of the detached bubbles and the gas evolution efficiency. The influence of the electrolysis current on these parameters was also investigated. The results of this first attempt at parameter derivation are discussed.

Dates and versions

hal-04602190 , version 1 (05-06-2024)

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Cite

Claude Gabrielli, François Huet, Michel Keddam, A. Sahar. Investigation of water electrolysis by spectral analysis. I. Influence of the current density. Journal of Applied Electrochemistry, 1989, 19 (5), pp.683-696. ⟨10.1007/BF01320643⟩. ⟨hal-04602190⟩
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