Long‐Term Stability Challenges and Opportunities in Acidic Oxygen Evolution Electrocatalysis

Polymer electrolyte membrane water electrolysis (PEMWE) has been regarded as a promising technology for renewable hydrogen production. However, acidic oxygen evolution reaction (OER) catalysts with long-term stability impose a grand challenge in its large-scale industrialization. In this review, critical factors that may lead to catalyst's instability in couple with potential solutions are comprehensively discussed, including mechanical peeling, substrate corrosion, active-site over-oxidation/dissolution, reconstruction, oxide crystal structure collapse through the lattice oxygen-participated reaction pathway, etc. Last but not least, personal prospects are provided in terms of rigorous stability evaluation…

• AF
  Agency for Science, Technology and Research

  Award: AME IRG A20E5c0080
• MO
  Ministry of Education - Singapore

  Award: Tier 1: RG4/20, Tier 1: RG2/21 and Tier 2: MOET2EP10120-0002
• NN
  National Natural Science Foundation of China

  Award: 22075195