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Journal of Electrochemistry ›› 2022, Vol. 28 ›› Issue (3): 2108491.  doi: 10.13208/j.electrochem.210849

• Special Issue: Frontier of Electrochemistry • Previous Articles     Next Articles

Recent Advances in Electrical Transport Spectroscopy for the in Situ Measurement of Electrochemical Interfaces

Zhang-Yan Mu, Meng-Ning Ding*()   

  1. Key Laboratory of Mesoscopic Chemistry, School of Chemistry and Chemical Engineering, Nanjing University, Nanjing 210023, Jiangsu, China
  • Received:2021-11-01 Revised:2021-12-31 Online:2022-03-28 Published:2022-01-10
  • Contact: Meng-Ning Ding E-mail:mding@nju.edu.cn

Abstract:

Electrochemical/electrocatalytic technology has played a central role in achieving highly efficient energy conversion and storage. To date, the in-depth electrochemical research begins to require accurate and multi-dimensional information of electrochemical interfaces, which usually relies on the application of in situ characterizations. Electrical transport spectroscopy (ETS) is a newly developed measurement strategy based on chip-platform, and provides in situ information of electrochemical interfaces from a novel perspective due to a signal origin that is fundamentally different from typical spectroscopic and electrochemical techniques. In this tutorial review, the working principle and experimental setup of ETS are described in detail with the demonstration of several model electrocatalytic materials, including metal nanoparticle/nanowires, two-dimensional layered materials, nickel based hydroxide/oxyhydroxides and dissimilatory metal-reducing bacteria. The advantages of ETS are summarized, and the future challenges and opportunities that ETS faces are also prospected.

Key words: electrical transport spectroscopy, mirco-nano electrochemical device, in-situ characterization, electrochemical interfaces, surface adsorptions