Regulating Hydrogen/Oxygen Species Adsorption via Built‐in Electric Field ‐Driven Electron Transfer Behavior at the Heterointerface for Efficient Water Splitting

Abstract Alkaline water electrolysis (AWE) plays a crucial role in the realization of a hydrogen economy. The design and development of efficient and stable bifunctional catalysts for both the hydrogen evolution reaction (HER) and oxygen evolution reaction (OER) are pivotal to achieving high‐efficiency AWE. Herein, WC 1‐x /Mo 2 C nanoparticle‐embedded carbon nanofiber (WC 1‐x /Mo 2 C@CNF) with abundant interfaces is successfully designed and synthesized. Benefiting from the electron transfer behavior from Mo 2 C to WC 1‐x , the electrocatalysts of WC 1‐x /Mo 2 C@CNF exhibit superior HER and OER performance. Furthermore, when employed as anode and cathode in membrane electrode assembly devices, the WC 1‐x /Mo 2…

• NN
  National Natural Science Foundation of China

  Award: 52025013
• CP
  China Postdoctoral Science Foundation

  Award: 2023M741810
• NS
  Natural Science Foundation of Shandong Province

  Award: ZR2022QE003