期刊
ANGEWANDTE CHEMIE-INTERNATIONAL EDITION
卷 59, 期 2, 页码 711-715出版社
WILEY-V C H VERLAG GMBH
DOI: 10.1002/anie.201911929
关键词
double layer capacitance; Gouy-Chapman capacitance; metal-electrolyte interface; potential of zero charge; Pt(111)
资金
- Hitachi Ltd.
- Hitachi High-Technologies Corporation
- Tata Steel Nederland Technology B.V. through the Materials Innovation Institute M2i
- Technology Foundation TTW
- Ministry of Economic Affairs of the Netherlands
We report, for the first time, the observation of a Gouy-Chapman capacitance minimum at the potential of zero charge of the Pt(111)-aqueous perchlorate electrolyte interface. The potential of zero charge of 0.3 V vs. NHE agrees very well with earlier values obtained by different methods. The observation of the potential of zero charge of this interface requires a specific pH (pH 4) and anomalously low electrolyte concentrations (m). By comparison to gold and mercury double-layer data, we conclude that the diffuse double layer structure at the Pt(111)-electrolyte interface deviates significantly from the Gouy-Chapman theory in the sense that the electrostatic screening is much better than predicted by purely electrostatic mean-field Poisson-Boltzmann theory.
作者
我是这篇论文的作者
点击您的名字以认领此论文并将其添加到您的个人资料中。
推荐
暂无数据