An ESCA Study on the Electrochemical Double Layer of Emersed Electrodes
An ESCA Study on the Electrochemical Double Layer of Emersed Electrodes
复制标题
DOI：
10.1002/bbpc.19830871206
复制
发表时间：
1983-12
期刊：
影响因子：
--
通讯作者：
P. Kolb;D. Rath;R. Wille;W. N. Hansen
中科院分区：
文献类型：
--
作者：
P. Kolb;D. Rath;R. Wille;W. N. Hansen
在电位控制期间，金电极从电解质中出现，随后转移到特高压室中，通过ESCA分析其表面作为出现电位和电解质成分的函数。ESCA的测量结果证实了这样的观点，即电极可以从电化学电池中移除，而电化学双层不变，而散装电解质则不存在。通过确定一些弱和强吸附离子以及金属沉积物的表面过量和吸附等温线，证明了非原位研究（例如ESCA）对浮现电极的潜在作用。本文报道并简要讨论了双层组分化学位移的观测结果。
Gold electrodes were emersed from the electrolyte during potential control and subsequently transferred into a UHV chamber for their surfaces to be analysed by ESCA as a function of emersion potential and electrolyte composition. The ESCA measurements confirm the view that electrodes can be removed from the electrochemical cell with the electrochemical double layer unchanged and the bulk electrolyte otherwise absent. The potential power of ex-situ studies, such as ESCA, on emersed electrodes is demonstrated by determining surface excesses and adsorption isotherms for a number of weakly and strongly adsorbing ions, as well as for metal deposits. Observations of chemical shifts for double-layer constituents are reported and briefly discussed.