Phosphated IrMo bimetallic cluster for efficient hydrogen evolution reaction

Developing low-cost, high-performance electrocatalysts for the hydrogen evolution reaction (HER) is essential for producing hydrogen from renewable energy sources. Herein, we report phosphated IrMo bimetallic clusters supported by macroporous nitrogen-doped carbon (IrMoP/MNC) as a highly efficient alkaline HER catalyst. The experimental and theoretical results demonstrate that P and Mo synergistically tune the electronic structure of atomically dispersed Ir to improve adsorption of the reactant H2O and desorption of the product OH−. P itself serves as an active site and cooperates with the nearby Ir atom to significantly enhance the HER kinetics. Even with only 2.6 ​wt% Ir in the catalyst, IrMoP/MNC exhibits…

• NN
  National Natural Science Foundation of China

  Awards: 21975010, U21A20328
• NS
  Natural Science Foundation of Beijing Municipality

  Award: Z200012
• NK
  National Key Research and Development Program of China

  Award: 2021YFB4000601