ELECTROCHEMICAL OXIDATION AND REDUCTION OF RUO2-TI ELECTRODE SURFACE
ELECTROCHEMICAL OXIDATION AND REDUCTION OF RUO2-TI ELECTRODE SURFACE
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DOI：
10.1002/bbpc.19780821005
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发表时间：
1978-01-01
期刊：
影响因子：
--
通讯作者：
GERISCHER, H
中科院分区：
文献类型：
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作者：
DOBLHOFER, K;METIKOS, M;GERISCHER, H
使用一种改进的技术，薄，均匀的RuO2薄膜制备重复高度抛光钛表面的钌盐热分解。用电化学技术研究了所制备的电极。计时库仑实验被认为是特别有用的，因为它们允许一个明确的分离表面和散装过程。- 发现表面Ru原子的氧化态在1 M H2SO4中从+2到+6的氢和氧析出之间的电位范围内变化。氢吸附的电位比+0.4 V（RHE）更阴极。相关的体扩散过程进行了讨论。
Using a refined technique, thin, homogeneous RuO2films were prepared reproducibly on highly polished Ti surfaces by thermal decomposition of ruthenium salts. The produced electrodes were investigated with electrochemical techniques. Chronocoulometry experiments were found to be particularly useful because they permitted a clear separation of surface and bulk processes. – The oxidation state of the surface Ru atoms was found to change in the potential range between hydrogen and oxygen evolution in 1 M H2SO4from +2 to +6. Hydrogen adsorption is proposed at potentials more cathodic than +0.4 V (RHE). The associated bulk diffusion processes are discussed.