Interfacial Engineering of Ni 3 N/Mo 2 N Heterojunctions for Urea-Assisted Hydrogen Evolution Reaction

The urea oxidation reaction (UOR) is considered as an alternative to the oxygen evolution reaction for high-efficiency hydrogen production. However, an urea molecule is relatively complex, containing both electron-donating amino (−NH2) and electron-withdrawing carbonyl (C═O) groups, and understanding the influence of different functional groups on the adsorption behavior is conducive to the rational design and preparation of high-performance UOR catalysts. Herein, we report a simple synthesis of the Ni3N/Mo2N heterostructure and a systematic investigation of urea-assisted electrolytic hydrogen production. Both temperature-programmed desorption and theoretical calculations decipher that −NH2 and C═O groups of…

• NN
  National Natural Science Foundation of China

  Awards: 52025013, 22121005
• HE
  Higher Education Discipline Innovation Project

  Award: B12015
• CU
  Central University Basic Research Fund of China