Insight Into Intermediate Behaviors and Design Strategies of Platinum Group Metal‐Based Alkaline Hydrogen Oxidation Catalysts

Hydrogen oxidation reaction (HOR) can effectively convert the hydrogen energy through the hydrogen fuel cells, which plays an increasingly important role in the renewable hydrogen cycle. Nevertheless, when the electrolyte pH changes from acid to base, even with platinum group metal (PGM) catalysts, the HOR kinetics declines with several orders of magnitude. More critically, the pivotal role of reaction intermediates and interfacial environment during intermediate behaviors on alkaline HOR remains controversial. Therefore, exploring the exceptional PGM-based alkaline HOR electrocatalysts and identifying the reaction mechanism are indispensable for promoting the commercial development of hydrogen fuel cells.…

• NN
  National Natural Science Foundation of China

  Awards: 52371240, U1904215
• NS
  Natural Science Foundation of Jiangsu Province

  Awards: BK20200044, BK20240894
• YS
  YangZhou Science and Technology Bureau