Dynamic Activation of Adsorbed Intermediates via Axial Traction for the Promoted Electrochemical CO2 Reduction

Research output: Journal Publications and Reviews (RGC: 21, 22, 62)21_Publication in refereed journalpeer-review

21 Scopus Citations
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Author(s)

  • Xinyue Wang
  • Yu Wang
  • Xiahan Sang
  • Wanzhen Zheng
  • Shihan Zhang
  • Ling Shuai
  • Bin Yang
  • Zhongjian Li
  • Jianmeng Chen
  • Lecheng Lei
  • Nadia Mohd Adli
  • Ming Qiu
  • Gang Wu
  • Yang Hou

Detail(s)

Original languageEnglish
Pages (from-to)4192-4198
Journal / PublicationAngewandte Chemie - International Edition
Volume60
Issue number8
Online published16 Nov 2020
Publication statusPublished - 19 Feb 2021

Abstract

Regulating the local environment and structure of metal center coordinated by nitrogen ligands (M-N4) to accelerate overall reaction dynamics of the electrochemical CO2 reduction reaction (CO2RR) has attracted extensive attention. Herein, we develop an axial traction strategy to optimize the electronic structure of the M-N4 moiety and construct atomically dispersed nickel sites coordinated with four nitrogen atoms and one axial oxygen atom, which are embedded within the carbon matrix (Ni-N4-O/C). The Ni-N4-O/C electrocatalyst exhibited excellent CO2RR performance with a maximum CO Faradic efficiency (FE) close to 100 % at −0.9 V. The CO FE could be maintained above 90 % in a wide range of potential window from −0.5 to −1.1 V. The superior CO2RR activity is due to the Ni-N4-O active moiety composed of a Ni-N4 site with an additional oxygen atom that induces an axial traction effect.

Research Area(s)

  • axial traction, dynamic understanding, electrochemical CO2RR, single-atom catalysts

Citation Format(s)

Dynamic Activation of Adsorbed Intermediates via Axial Traction for the Promoted Electrochemical CO2 Reduction. / Wang, Xinyue; Wang, Yu; Sang, Xiahan; Zheng, Wanzhen; Zhang, Shihan; Shuai, Ling; Yang, Bin; Li, Zhongjian; Chen, Jianmeng; Lei, Lecheng; Adli, Nadia Mohd; Leung, Michael K. H.; Qiu, Ming; Wu, Gang; Hou, Yang.

In: Angewandte Chemie - International Edition, Vol. 60, No. 8, 19.02.2021, p. 4192-4198.

Research output: Journal Publications and Reviews (RGC: 21, 22, 62)21_Publication in refereed journalpeer-review