Janus electronic state of supported iridium nanoclusters for sustainable alkaline water electrolysis

Abstract Metal-support electronic interactions play crucial roles in triggering the hydrogen spillover (HSo) to boost hydrogen evolution reaction (HER). It requires the supported metal of electron-rich state to facilitate the proton adsorption/spillover. However, this electron-rich metal state contradicts the traditional metal→support electron transfer protocol and is not compatible with the electron-donating oxygen evolution reaction (OER), especially in proton-poor alkaline conditions. Here we profile an Ir/NiPS 3 support structure to study the Ir electronic states and performances in HSo/OER-integrated alkaline water electrolysis. The supported Ir is evidenced with Janus electron-rich and electron-poor…

• NN
  National Natural Science Foundation of China

  Award: 52371236
• CP
  China Postdoctoral Science Foundation

  Award: 2019M663698
• NN
  National Natural Science Foundation of China-Yunnan Joint Fund

  Award: 52371236