Magnetic Field-Enhanced Acidic CO2 Electroreduction Reaction on Single Nickel-Site Catalysts

IF 14.4 1区化学 Q1 CHEMISTRY, MULTIDISCIPLINARY

Journal of the American Chemical Society Pub Date : 2025-04-02 DOI:10.1021/jacs.5c00858

Jia Song, Dayin He, Xianhui Ma, Peigen Liu, Wenxin Guo, Rongbo Sun, Feng Li, Zhicheng Zhong, Huang Zhou, Jun Tang, Jie Xu, Tongwei Wu, Lin Hu, Yuen Wu

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Abstract

The synergistic integration of electrochemical reactions with an external magnetic field offers a powerful strategy for enhancing reaction performance. Herein, we introduce a flexible and continuously adjustable external magnetic field to enhance acidic CO₂ reduction reaction (CO₂RR) performance. In an acidic electrolyte (pH = 0.91), the initial Faradaic efficiency (FE) of the CO₂RR for CO is only 18%, which can be increased to 63.2% when a 2 T magnetic field is applied. More importantly, the introduction of this external magnetic field enables the continuous switching of CO₂ reduction products in a noncontact magnetic switching mode. Theoretical calculations demonstrate that the application of a magnetic field promotes CO₂ adsorption at Ni sites and inhibits the hydrogen evolution reaction (HER), ultimately enhancing CO₂RR activity and selectivity. This work provides fresh insight into how an external magnetic field promotes CO₂RR performance.

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来源期刊

Journal of the American Chemical Society 化学-化学综合

CiteScore

24.40

自引率

6.00%

发文量

2398

审稿时长

1.6 months

期刊介绍： The flagship journal of the American Chemical Society, known as the Journal of the American Chemical Society (JACS), has been a prestigious publication since its establishment in 1879. It holds a preeminent position in the field of chemistry and related interdisciplinary sciences. JACS is committed to disseminating cutting-edge research papers, covering a wide range of topics, and encompasses approximately 19,000 pages of Articles, Communications, and Perspectives annually. With a weekly publication frequency, JACS plays a vital role in advancing the field of chemistry by providing essential research.