Electrocatalytic activity of methanol oxidation at a boron-doped diamond electrode in alkaline solution

Chia Chin Chang, Li Chia Chen, Hsien Chang Chang, Hsien Ju Tien

研究成果: Article同行評審

2 引文 斯高帕斯(Scopus)

摘要

The electrocatalytic activity of methanol oxidation at a boron-doped diamond (BDD) electrode in alkaline solution is investigated by voltammetry and electrochemical impedance spectroscopy. Methanol oxidation in this work involves the generation of OH radicals. The intermediate, as formaldehyde, adsorbed at the BDD electrode surface is subsequently oxidized to formic acid or CO 2 by OH radicals. Additionally, the reaction is influenced by the ratio of methanol and OH- concentration in the solution and is enhanced with the increased OH- concentration. Methanol adsorption at the BDD electrode surface is an important factor and difficult in this work. However, formaldehyde adsorption is more difficult than methanol. Methanol oxidation in this investigation is dominated by organic adsorption at a lower potential range.With the increased potential, it is gradually dominated by the generation of OH radicals.

原文English
頁(從 - 到)1269-1274
頁數6
期刊Journal of the Chinese Chemical Society
53
發行號6
DOIs
出版狀態Published - 2006 一月 1

All Science Journal Classification (ASJC) codes

  • Chemistry(all)

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