Strategies to maximize the oxygen evolution reaction in layered double hydroxides by electronic defect engineering

Layered double hydroxides (LDHs) have emerged as highly promising oxygen evolution reaction (OER) catalysts because of their naturally forming two-dimensional (2D) layer structure and intrinsic oxygen vacancies. Numerous efforts to develop synthesis methods as well as modify the structure and composition of LDHs have helped to improve their electrocatalytic performance. Recent strategies to optimize LDHs have gone beyond regulating oxygen vacancies via metal modifications, with innovative ideas of atomic loading and anion-based lattice modification being proposed. In this review, a fundamental understanding of the structural design and its close relationship with the OER mechanism in alkaline media are…

• NN
  National Natural Science Foundation of China
• CP
  China Postdoctoral Science Foundation
• SA
  Science and Technology Department, Henan Province
• CI
  China Institute of Atomic Energy