期刊
CATALYSTS
卷 7, 期 8, 页码 -出版社
MDPI AG
DOI: 10.3390/catal7080239
关键词
hydrogen evolution reaction; exchange current density; silver electrode; electrochemical measurement; irreversible reaction
An experimentally obtained polarization curve for the hydrogen evolution reaction on silver in a 0.5 mol dm(-3) solution was investigated using an electrochemical curve technique named the differential polarization method (DPM). The exchange current density estimated by the Tafel extrapolation method (TEM) and the DPM were compared and assessed from points of simple and more accurate handling. It is shown that the DPM has two advantages: (1) proper reading of the Tafel slope region and (2) elimination of the undesirable physical factors such as oxide film and solution resistance.
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