articleAngewandte Chemie International EditionMar 21, 2023Closed access

Activating Lattice Oxygen in Spinel ZnCo 2 O 4 through Filling Oxygen Vacancies with Fluorine for Electrocatalytic Oxygen Evolution

KXKang XiaoYWYifan WangPWPeiyuan WuLHLiping HouZLZhao‐Qing Liu

Guangzhou University

PubMed
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Abstract

Abstract The development of productive catalysts for the oxygen evolution reaction (OER) remains a major challenge requiring significant progress in both mechanism and material design. Conventionally, the thermodynamic barrier of lattice oxidation mechanism (LOM) is lower than that of absorbate evolution mechanism (AEM) because the former can overcome certain limitations. However, controlling the OER pathway from the AEM to the LOM by exploiting the intrinsic properties of the catalyst remains challenging. Herein, we incorporated F anions into the oxygen vacancies of spinel ZnCo 2 O 4 and established a link between the electronic structure and the OER catalytic mechanism. Theoretical density calculations…

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Topics & keywords

Topics
Keywords
  • Spinel
  • Catalysis
  • Oxygen evolution
  • Oxygen
  • Electronegativity
  • Redox
  • Chemistry
  • Chemical physics
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