Cyclic voltammetry of AuCl4- in absence and presence of KMnO4 in 0.1 M HNO3 at 297.15 K | ||
| Mansoura Journal of Chemistry | ||
| Volume 49, Issue 3, August 2020, Pages 21-26 PDF (925.26 K) | ||
| Document Type: Original Article | ||
| DOI: 10.21608/mjcc.2020.412883 | ||
| Authors | ||
| EsamA. Gomaa* ; Nermeen M.Hassan; Rim M. Elkenawi | ||
| Chemistry Department, Faculty of Science, Mansoura University, Mansoura, Egypt | ||
| Abstract | ||
| In the present work, the cyclic voltammetry of sodium aurate was examined alone and with KMnO4 in HNO3 as supporting electrolyte using glassy carbon working electrode.The study is valuable for evaluating the thermodynamic properties. In absence of KMnO4, adding different concentration of AuCl4- ions to HNO3 gave redox waves. In the reduction effect, the nitrate was increased indicating catalytic peak. While in oxidation effect of Au0 to Au+3 gave broad peak. In presence of KMnO4, all cyclic voltammetric data are greater in most parameters. The electron transfer rate constant resulting from the interaction of KMnO4 on NaAuCl4 were evaluated and their data were discussed. | ||
| Keywords | ||
| Cyclic voltammetry; oxidation; gold chloride; potassium permanganate | ||
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