Recent Advances and Perspectives on Coupled Water Electrolysis for Energy‐Saving Hydrogen Production

Abstract Overall water splitting (OWS) to produce hydrogen has attracted large attention in recent years due to its ecological‐friendliness and sustainability. However, the efficiency of OWS has been forced by the sluggish kinetics of the four‐electron oxygen evolution reaction (OER). The replacement of OER by alternative electrooxidation of small molecules with more thermodynamically favorable potentials may fundamentally break the limitation and achieve hydrogen production with low energy consumption, which may also be accompanied by the production of more value‐added chemicals than oxygen or by electrochemical degradation of pollutants. This review critically assesses the latest discoveries in the coupled…

• NN
  National Natural Science Foundation of China

  Award: 52101230
• EA
  Environment and Conservation Fund

  Awards: ECF 2021-152, ECF 2021‐152, 2021-152
• SK
  Shaanxi Key Science and Technology Innovation Team Project

  Award: 2022TD‐33