Selective Activation of Lattice Oxygen Site Through Coordination Engineering to Boost the Activity and Stability of Oxygen Evolution Reaction

Abstract Although Ru‐based materials are among the outstanding catalysts for the oxygen evolution reaction (OER), the instability issue still haunts them and impedes the widespread application. The instability of Ru‐based OER catalysts is generally ascribed to the formation of soluble species through the over‐oxidation of Ru and structural decomposition caused by involvement of lattice oxygen. Herein, an effective strategy of selectively activating the lattice oxygen around Ru site is proposed to improve the OER activity and stability. Our synthesized spinel‐type electrocatalyst of Ru and Zn co‐doped Co 3 O 4 showed an ultralow overpotential of 172 mV at 10 mA cm −2 and a long‐term stability reaching to 100…

• NN
  National Natural Science Foundation of China

  Awards: 2017YFA0403400, U2032202
• CA
  Chinese Academy of Sciences

  Award: 2017YFA0403400
• CP
  China Postdoctoral Science Foundation

  Awards: 2017YFA0403400, 2023M742047
• YI
  Youth Innovation Promotion Association of the Chinese Academy of Sciences

  Award: Y2022006
• NS
  Natural Science Foundation of Beijing Municipality

  Award: 1244064
• IO
  Institute of High Energy Physics
• NK
  National Key Research and Development Program of China

  Awards: 2021YFA1502200, 2017YFA0403400
• YI
  Youth Innovation Promotion Association
• BS
  Beijing Synchrotron Radiation Facility
• HE
  High Energy Physics