Hydrogen electrode reaction: A complete kinetic description
Hydrogen electrode reaction: A complete kinetic description
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氢电极反应：完整的动力学描述
DOI：
10.1016/j.electacta.2007.06.030
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发表时间：
2007
影响因子：
6.6
通讯作者：
A. Chialvo
中科院分区：
文献类型：
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作者：
P. Quaino;M. R. G. Chialvo;A. Chialvo
给出了整个过电位范围（- 0.2<η (V)<0.40）内氢电极反应的动力学描述。Volmer-Heyrovsky-Tafel机制的求解同时考虑了以下项目：(i)分子氢从电极表面和向电极表面的扩散贡献；（ii）每个基本步骤的正向和反向反应速率；（iii）反应中间体的Frumkin型吸附。为了验证所导出的动力学表达式的描述能力，在酸溶液中旋转铂盘电极上对HER进行了实验研究。从这些结果的相关性出发，对基本动力学参数进行了评价，并讨论了与动力学机理有关的几个方面。最后，还分析了用这些动力学表达式来解释微电极上得到的结果。
The kinetic description of the hydrogen electrode reaction (HER) in the whole range of overpotentials (−0.2<η (V)<0.40) is presented. The Volmer–Heyrovsky–Tafel mechanism was solved considering simultaneously the following items: (i) the diffusional contribution of the molecular hydrogen from and towards the electrode surface, (ii) the forward and backward reaction rates of each elementary step and (iii) a Frumkin type adsorption for the reaction intermediate. In order to verify the descriptive capability of the kinetic expressions derived, an experimental study of the HER was carried out on a rotating platinum disc electrode in acid solution. From the correlation of these results the elementary kinetic parameters were evaluated and several aspects related to the kinetic mechanism were discussed. Finally, the use of these kinetic expressions to interpret results obtained on microelectrodes is also analysed.
影响因子：
6.6
作者：
Kunimatsu, Keiji;Senzaki, Takahiro;Osawa, Masatoshi
通讯作者：
Osawa, Masatoshi
N.Nanbu：“通过 FT-IRAS 研究原子氢在多晶 Pt 电极表面上的吸附：吸附的一氧化碳对光谱特征的影响”J.Electroanal.Chem.. 485. 128-134 (2000)
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