引用本文:
崔成强, 张瀛洲, 周绍民. RuO2电极伏安特性[J]. 物理化学学报,
1990, 6(02): 159-162.
doi:
10.3866/PKU.WHXB19900207
Citation: Cui Cheng-Qiang, Zhang Ying-Zhou, Zhou Shao-Min. Voltammetric Characteristics of RuO2 Electrode[J]. Acta Physico-Chimica Sinica, 1990, 6(02): 159-162. doi: 10.3866/PKU.WHXB19900207
Citation: Cui Cheng-Qiang, Zhang Ying-Zhou, Zhou Shao-Min. Voltammetric Characteristics of RuO2 Electrode[J]. Acta Physico-Chimica Sinica, 1990, 6(02): 159-162. doi: 10.3866/PKU.WHXB19900207
RuO2电极伏安特性
摘要:
本文用循环伏安法和微分脉冲极谱法研究RuO_2电极的优安特性。结果表明, 在0.2～0.8 V电位区存在两个氧化还原反应;
RuOOH<=>RuO_2+H~+e 和 RuO_2+H_2O<=>RuO_3_2H~++2e
而不是一个氧化还原反应(RU(Ⅲ)→Ru(Ⅳ)); 且电极的析氧活性中心为氧结构空位, 它的消失导致电极的失活。
RuOOH<=>RuO_2+H~+e 和 RuO_2+H_2O<=>RuO_3_2H~++2e
而不是一个氧化还原反应(RU(Ⅲ)→Ru(Ⅳ)); 且电极的析氧活性中心为氧结构空位, 它的消失导致电极的失活。
English
Voltammetric Characteristics of RuO2 Electrode
Abstract:
The voltammetric characteristics of RuO_2 electrode has been studied by means of cyclic voltammetry and pulse polarography. In the potential range of 0.2-0.8 V, there are two redox reactions as follows:
RuOOH<+>RuO_2+H~++e
RuO_2+H_2O<=>RuO_3+2H~++2e
but not one redox reaction to turn Ru~(3+) into Ru~(4+).
The oxygen-deficient structures are the active sites whose disappearance results in the deactivation of the electrode.
RuOOH<+>RuO_2+H~++e
RuO_2+H_2O<=>RuO_3+2H~++2e
but not one redox reaction to turn Ru~(3+) into Ru~(4+).
The oxygen-deficient structures are the active sites whose disappearance results in the deactivation of the electrode.
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