Abstract
In d.c. voltammetry of dilute aqueous chloroauric acid with hanging mercury drop electrode, when potential scanning proceeds from negative to positive values, a prominent maximum of cathodic current appears on the curve near 0 V. The effect is explained as due to catalytic evolution of hydrogen on the electrode initially covered by adsorbed Au-hydroxidic layer. Once the layer dissolves in the acidic solution during the positive scan, a fast evolution of hydrogen takes place, catalysed by short-lived adsorbed gold particles.
| Original language | English |
|---|---|
| Pages (from-to) | 929-936 |
| Number of pages | 8 |
| Journal | Collection of Czechoslovak Chemical Communications |
| Volume | 76 |
| Issue number | 7 |
| DOIs | |
| Publication status | Published - 2011 |
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Keywords
- Aqueous chloroauric acid
- Catalytic hydrogen evolution
- Gold
- Hanging mercury drop electrode
- Hydrogen
- Linear voltammetry
- Voltammetry
ASJC Scopus subject areas
- Chemistry(all)
Cite this
Korshunov, A. V., Yosypchuk, B., & Heyrovský, M. (2011). Voltammetry of aqueous chloroauric acid with hanging mercury drop electrode. Collection of Czechoslovak Chemical Communications, 76(7), 929-936. https://doi.org/10.1135/cccc2011064