Highly Efficient Electrocatalytic Oxygen Evolution Over Atomically Dispersed Synergistic Ni/Co Dual Sites

Zhihao Pei, Xue Feng Lu, Huabin Zhang, Yunxiang Li, Deyan Luan, Xiong-Wen (David) Lou

Research output: Contribution to journalArticlepeer-review

1 Scopus citations

Abstract

Single-atom catalysts (SACs) are being pursued as economical electrocatalysts. However, their low active-site loading, poor interactions, and unclear catalytic mechanism call for significant advances. Herein, atomically dispersed Ni/Co dual sites anchored on nitrogen-doped carbon (a-NiCo/NC) hollow prisms are rationally designed and synthesized. Benefiting from the atomically dispersed dual-metal sites and their synergistic interactions, the obtained a-NiCo/NC sample exhibits superior electrocatalytic activity and kinetics towards the oxygen evolution reaction. Moreover, density functional theory calculations indicate that the strong synergistic interactions from heteronuclear paired Ni/Co dual sites lead to the optimization of the electronic structure and the reduced reaction energy barrier. This work provides a promising strategy for the synthesis of high-efficiency atomically dispersed dual-site SACs in the field of electrochemical energy storage and conversion.
Original languageEnglish (US)
JournalAngewandte Chemie International Edition
DOIs
StatePublished - Jul 27 2022

ASJC Scopus subject areas

  • Chemistry(all)
  • Catalysis

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