期刊
JOURNAL OF ELECTROANALYTICAL CHEMISTRY
卷 861, 期 -, 页码 -出版社
ELSEVIER SCIENCE SA
DOI: 10.1016/j.jelechem.2019.113709
关键词
AC voltammetry; Electrodeposition; Gas evolution; Electrolysis; Ohmic drop
资金
- US National Science Foundation [1562545]
- US Department of Energy, EERE - AMO [DE-EE0008316]
- Div Of Civil, Mechanical, & Manufact Inn
- Directorate For Engineering [1562545] Funding Source: National Science Foundation
Analytic solutions are derived for the alternating current voltammetry (ACV) harmonic waveforms of electrodeposition and gas evolution reactions where the surface activity of the reduced species R is constant. Reversible and quasi-reversible charge transfer kinetics are considered, as well as the effects of ohmic drop and double layer charging. It is shown that ohmic drop produces a characteristic distortion of the waveform envelopes, resulting in the emergence of waveform extrema in the higher harmonics that are distinct from those of the conventional ACV theory of soluble redox couples. A quantitative connection is made between the peak potential of the second harmonic and the electrode reaction parameters. The analytic solutions agree well with measurements of the fundamental, second, and third harmonic waveforms of Pb electrodeposition on liquid Pb and of Cl-2 evolution on graphite in molten PbCl2-NaCl-KCl at 700 degrees C. (C) 2019 Published by Elsevier B.V.
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