阳极
电解
材料科学
钻石
基质(水族馆)
电极
扫描电子显微镜
硅
薄膜
拉曼光谱
冶金
分析化学(期刊)
化学工程
复合材料
化学
纳米技术
电解质
光学
工程类
物理化学
海洋学
物理
色谱法
地质学
作者
Nobuyuki Katsuki,Eietsu Takahashi,Mayumi Toyoda,Takeshi Kurosu,Masamori Iida,Shuhei Wakita,Yoshinori Nishiki,Takayuki Shimamune
出处
期刊:Journal of The Electrochemical Society
[The Electrochemical Society]
日期:1998-07-01
卷期号:145 (7): 2358-2362
被引量:105
摘要
Thin, boron‐doped diamond films formed on a silicon substrate were evaluated during water electrolysis in acidic solution in order to determine their potential for industrial use. Though the electrode exhibited overvoltages in excess of 2 V in the industrial current range, ozone gas was produced at a current efficiency of a few percent at ambient temperature. It was confirmed that the consumption rate of the highly doped sample was small and comparable with a platinum‐plated anode, indicating that the diamond is dimensionally stable under extreme conditions. The failure mechanism in the test is discussed on the basis of scanning electron microscopy, X‐ray diffraction, and Raman analyses. The spalling of the film from the substrate, which was observed in the deteriorated sample after the electrolysis, is attributed to the residual stress that accumulated during the production process carried out under high temperature.
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