Open AccessIn situ detection of electrochemical reaction by weak measurement
Author(s) -
Zhangyan Li,
Yang Xu,
Ke Ma,
Le Liu,
Jingyu Xi,
Tian Guan,
Fuying Li,
Chongqi Zhou,
Suyi Zhong,
Yonghong He
Publication year - 2021
Publication title -
optics express
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 1.394
H-Index - 271
ISSN - 1094-4087
DOI - 10.1364/oe.426345
Subject(s) - electrochemistry , linear sweep voltammetry , materials science , cyclic voltammetry , vanadium , voltammetry , in situ , analytical chemistry (journal) , electrode , chemistry , metallurgy , organic chemistry , chromatography
In the field of electrochemical energy storage systems, the use of in situ detection technology helps to study the mechanism of electrochemical reaction. Our group has previously in situ detected the electrochemical reaction in vanadium flow batteries by total internal reflection (TIR) imaging. In order to further improve the detection resolution, in this study, the weak measurement (WM) method was introduced to in situ detect the electrochemical reaction during the linear sweep voltammetry or the cyclic voltammetry tests with quantitative measurement of the absolute current density, which lays a foundation for replacing the TIR for two-dimensional imaging of electrochemical reactions in vanadium flow batteries, oxygen/hydrogen evolution reaction, surface treatments, electrochemical corrosion and so on.