Energy Level Engineering of MoS 2 by Transition-Metal Doping for Accelerating Hydrogen Evolution Reaction

Water-splitting devices for hydrogen generation through electrolysis (hydrogen evolution reaction, HER) hold great promise for clean energy. However, their practical application relies on the development of inexpensive and efficient catalysts to replace precious platinum catalysts. We previously reported that HER can be largely enhanced through finely tuning the energy level of molybdenum sulfide (MoS2) by hot electron injection from plasmonic gold nanoparticles. Under this inspiration, herein, we propose a strategy to improve the HER performance of MoS2 by engineering its energy level via direct transition-metal doping. We find that zinc-doped MoS2 (Zn-MoS2) exhibits superior electrochemical activity toward…

• NN
  National Natural Science Foundation of China

  Awards: 21327902, 21675079, 21635004
• MO
  Ministry of Science and Technology of the People's Republic of China

  Award: 2017YFA0206500