Issue 16, 2020

In situ observation of heterogeneous charge distribution at the electrode unraveling the mechanism of electric field-enhanced electrochemical activity

Abstract

Here, in situ observation of heterogeneous charge distribution at the Pt–graphite surface in the hydrogen evolution reaction (HER) is realized using scanning ion conductive microscopy (SICM). High charge density and electrochemical activity are revealed at the Pt–graphite interface, where a high electric field is observed through theoretical derivation. This key information helps to develop a new electrochemical mechanism for the regulation of electrochemical activity, in which a locally high electric field induces more charges in these specific regions and elevated electrochemical activity.

Graphical abstract: In situ observation of heterogeneous charge distribution at the electrode unraveling the mechanism of electric field-enhanced electrochemical activity

Supplementary files

Article information

Article type
Edge Article
Submitted
13 Jan 2020
Accepted
01 Apr 2020
First published
01 Apr 2020
This article is Open Access

All publication charges for this article have been paid for by the Royal Society of Chemistry
Creative Commons BY-NC license

Chem. Sci., 2020,11, 4158-4163

In situ observation of heterogeneous charge distribution at the electrode unraveling the mechanism of electric field-enhanced electrochemical activity

R. Jin, Y. Huang, L. Cheng, H. Lu, D. Jiang and H. Chen, Chem. Sci., 2020, 11, 4158 DOI: 10.1039/D0SC00223B

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