articleJournal of the American Chemical SocietyJun 4, 2025Closed access

Lattice Oxygen Mechanism Induced on Nickel Sites by Cl – Adsorption for Efficient Seawater Oxidation Reaction

QSQihao ShaTGTianshu GaoYLYan LiWHWei‐Hsuan HungCCChing‐Yu Chiang

State Key Laboratory of Chemical Engineering · Beijing University of Chemical Technology · +8 more institutions

PubMed
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Abstract

Efficient seawater oxidation reaction is crucial for advancing hydrogen fuel production. Developing highly efficient oxygen evolution reaction (OER) catalysts that follow the lattice oxygen mechanism (LOM) can effectively mitigate undesirable chloride oxidation side reactions in seawater electrolysis and reduce energy consumption. Herein, we propose a Cl–-mediation strategy that is able to shift the OER mechanism from the adsorbate evolution mechanism (AEM) to LOM on nickel sites. By loading highly dispersed Ir onto Ni-based precursors (e.g., NiSe, Ni(OH)2, NiS2 and NiSOH), we exploit the robust coordination interaction between Ir and Cl– in seawater to establish a Cl–Ir–O–Ni electron-withdrawing chain from Ni…

Citation impact

63
total citations
FWCI
17.87
Percentile
100%
References
41
Citations per year

Authors

9

Topics & keywords

Topics
Keywords
  • Chemistry
  • Nickel
  • Seawater
  • Adsorption
  • Oxygen
  • Inorganic chemistry
  • Oxygen-18
  • Reaction mechanism
UN Sustainable Development Goals
  • Life below water
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