Electrode polarization of Galinstan electrodes for liquid impedance spectroscopy

被引：16

作者：

Mellor, Brett L. ^{[1
]}

Kellis, Nathan A. ^{[1
]}

Mazzeo, Brian A. ^{[1
]}

机构：

[1] Brigham Young Univ, Dept Elect & Comp Engn, Provo, UT 84602 USA

来源：

REVIEW OF SCIENTIFIC INSTRUMENTS | 2011年 / 82卷 / 04期

关键词：

GALLIUM-INDIUM EGAIN; DIELECTRIC-SPECTROSCOPY; DISPERSION; WATER; METAL;

D O I：

10.1063/1.3581229

中图分类号：

TH7 [仪器、仪表];

学科分类号：

0804 ; 080401 ; 081102 ;

摘要：

Electrode polarization is a significant obstacle in the impedance measurements of ionic liquids. An atomically smooth electrode surface could potentially reduce unwanted impedance contributions from electrode polarization. Liquid metal electrodes were formed by adhering Galinstan to acrylic plates in a parallel-plate capacitor arrangement. Electrode polarization was compared to a similar cell with stainless steel electrodes. The impedance of salt and protein solutions (beta-lactoglobulin) was measured from 40 Hz to 110 MHz. Because of oxide layer formation, the performance of the Galinstan electrode is significantly different than the theoretical ideal. (C) 2011 American Institute of Physics. [doi:10.1063/1.3581229]

引用

页数：3

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