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Study of the electrochemical oxidation mechanism of formaldehyde on gold electrode in alkaline solution

Rui-Wen Yan ,  Bao-Kang Jin

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Citation:  Rui-Wen Yan, Bao-Kang Jin. Study of the electrochemical oxidation mechanism of formaldehyde on gold electrode in alkaline solution[J]. Chinese Chemical Letters, 2013, 24(2): 159-162. shu

Study of the electrochemical oxidation mechanism of formaldehyde on gold electrode in alkaline solution

    • 通讯作者: Bao-Kang Jin,
  • 基金项目:

    the Program for New Century Excellent Talents in University (No. NECT-07-0002) (No. NECT-07-0002)

    Doctoral Program Foundation of the Ministry of Education of China, the Foundation of Scientific Innovation Team of Anhui Province (No. 2006KJ007TD) (No. 2006KJ007TD)

摘要: The oxidation of formaldehyde in alkaline solution was studied by in situ rapid-scan time-resolved IR spectroelectrochemistry (RS-TR-FTIRS) method. In the potential range between 0.7 V and 0.2 V, the gem-diol anions were oxidized (according to the 2765 cm-1 of vH-O and 1034 cm-1 of vCO downward IR bands) and the formate ions appeared (according to the 1588, 1357 cm-1 of the asymmetric and symmetric vOCO and 1380 cm-1 of δC-H upward IR bands) in aqueous solution. It was also confirmed that gem-diol anion was oxidized (according to the 2026, 1034 cm-1 downward IR bands) to formate ions (according to the 1595, 1357, 1380 cm-1 upward IR bands) and water (according to the 3427 cm-1 of vH-O upward IR band) in heavy water solution. The results illustrated that formaldehyde formed gem-diol anion in alkaline solution and was absorbed on the electrode surface; then gem-diol anion was oxidized to formate ions and water.

English

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  • 收稿日期:  2012-11-07
  • 网络出版日期:  2012-12-31
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