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/L NaOH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0.5 V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.
The electrochemical behavior of β-Ni(OH)2 electrode in 3 mol/L NaOH was investigated by using in situ subtractsvely normalized interfacial FTIR spectrometry(SNIFTIRS). It was found from in situ SNIFTIRS spectra, that the surface of β-Ni(OH)2 layer is changed to β-NiOOH obviously 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-NiOOH layer is possibly started from Ni/β-NiOOH interface. The influence of solvent on SNIFTIRS spectra of β-Ni(OH)2 can be reduced by using NaOD heavy water solution instead of NaOH solution.
出处
《高等学校化学学报》
SCIE
EI
CAS
CSCD
北大核心
1989年第12期1221-1224,共4页
Chemical Journal of Chinese Universities
基金
国家自然科学基金
