高等学校化学学报

高等学校化学学报 ›› 1989, Vol. 10 ›› Issue (12): 1221.

• 研究论文 • 上一篇    下一篇

β-Ni(OH)2电极的原位红外光谱研究

江志裕, 严曼明, 王洁   

  1. 复旦大学化学系
  • 收稿日期:1988-03-18 出版日期:1989-12-24 发布日期:1989-12-24
  • 通讯作者: 江志裕
  • 基金资助:

    国家自然科学基金

In Situ FTIR Spectroscopic Study of β-Ni(OH)2 Electrode

Jiang Zhiyu, Yan Manming, Wang Jie   

  1. Department of Chemistry, Fuudam University, Shanghai
  • Received:1988-03-18 Online:1989-12-24 Published:1989-12-24

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摘要： 利用原位界面付里叶变换红外反射光谱法研究了β-Ni(OH)2在3mol/LNaOH溶液中的电化学行为.原位红外反射光谱数据表明,电极电位大于0.5V时.β-Ni(OH)2层的表面转变为β-NiOOH.β-Ni(OH)2层的氧化是从β-Ni(OH)2/溶液界面开始的.而逆向的β-NiOOH层阴极还原则可能起始于Ni/β-NiOOH界面.用NaOD重水溶液代替NaOH水溶液可减少溶剂对光谱数据的干扰,谱图更清晰.

关键词: Ni(OH)2电极, 红外光谱, 光谱电化学

Abstract: The electrochemical behavior of β-Ni(OH)2 electrode in 3mol/L NaOHwas investigated by using in situ subtractsvely normalized interfacial FTIRspectrometry(SNIFTIRS).It was found from in situ SNIFTIRSspectra, that the surface of β-Ni(OH)2 layer is changed to β-NiOOHobviously when the potential is higher than 0.5 V.The anodic oxidation of β-Ni(OH)2 layer is started from β-Ni((OH)2/solution interface.But the cathodic reduction of β-NiOOHlayer is possibly started from Ni/β-NiOOHinterface.The influence of solvent on SNIFTIRSspectra of β-Ni(OH)2 can be reduced by using NaODheavy water solution instead of NaOHsolution.

Key words: Ni(OH)2 electrode, IR spectra, Spectroelectrochemistry

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