Construction of Pt Single-Atom and Cluster/FeOOH Synergistic Active Sites for Efficient Electrocatalytic Hydrogen Evolution Reaction

The design of efficient catalysts that synergistically promote *H2O decomposition, H2 formation, and desorption is critical to accelerate hydrogen evolution reaction (HER) kinetics but remains a significant challenge. Herein, we design an efficient catalyst of Pt/FeOOH@NiFe LDHs with Pt single-atom and cluster distribution induced by amorphous FeOOH. The Pt/FeOOH@NiFe LDHs with a low Pt content of 2 wt % exhibit ultralow HER overpotentials of 20 and 85 mV in alkaline media (5 and 40 mV in acidic media) to achieve the current densities of 10 and 100 mA cm–2. The overpotentials of specific activity normalized by the electrochemically active surfaces (ECSA) are 100 mV@0.2 mA cmECSA–2 and 140 mV@0.4 mA cmECSA–2.…

• CP
  China Postdoctoral Science Foundation

  Award: 2022M722363
• NS
  Natural Science Foundation of Shandong Province

  Awards: ZR2020KB011, ZR2022QB236
• TS
  Taishan Scholar Foundation of Shandong Province

  Award: tsqn201909119