物理化学学报 >> 1996, Vol. 12 >> Issue (06): 527-531.doi: 10.3866/PKU.WHXB19960610

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循环伏安和现场FTIR反射光谱研究甲醛在金电极上的氧化

杨辉,陆天虹,薛宽宏,周益明,孙世刚,陈声培   

  1. 长春应用化学研究所，长春 130022|南京师范大学化学系，南京 210097|厦门大学化学系，厦门 361005
  • 收稿日期:1995-08-29 修回日期:1996-03-05 发布日期:1996-06-15
  • 通讯作者: 薛宽宏

Cyclic Voltammetry and in-situ FTIR Spectroscopic Studies on Electro-oxidation of Formaldehyde at a Gold Electrode

Yang Hui,Lu Tian-Hong,Xue Kuan-Hong,Zhou Yi-Ming,Sun Shi-Gang,Chen Sheng-Pei   

  1. Changchun Institute of Applied Chemistry,Changchun 130022|Department of Chemistry,Nanjing Normal University,Nanjing 210097|Department of Chemistry,Xiamen University,Xiamen 361005
  • Received:1995-08-29 Revised:1996-03-05 Published:1996-06-15
  • Contact: Xue Kuan-Hong

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关键词: 甲醛, 金电极, 电催化氧化, 循环伏安, 现场红外光谱

Abstract:

 The electro-oxidation of formaldehyde on a gold electrode in a gold electrode in a solution containing 0.1mol •L -1 Na2CO3＋0. 1mol•L - 1NaHCO3＋0. 1 mol•L - 1 HCHO was investigated by cyclic voltammetry and in -situ FTIR spetroscopy . The experimental results demonstrated that the oxidation of formaldehyde at different potential range connected with different surface species of gold. At lower potentials, the main product of formaldehyde oxidation was HCOO-, and at higher potentials, the products HCOO- and CO2 were detected simultaneously. From the results, a possible reaction mechanism was proposed.

Key words: Formaldehyde, Gold electrode, Electrocatalytic oxidation, Cyclic voltammetry, In-situ FTIR spectroscopy