Modulating the covalency of Ru-O bonds by dynamic reconstruction for efficient acidic oxygen evolution

Developing ruthenium-based oxide catalysts capable of suppressing lattice oxygen participation in the catalytic reaction process is crucial for maintaining stable oxygen evolution reaction (OER) under acidic conditions. Herein, we delicately construct a RuO2 nanoparticle-anchored LiCoO2 nanosheet electrocatalyst (RuO2/LiCoO2), achieving dynamic optimization of RuO2 during the reaction process and improving catalytic stability. Benefiting from the unique electrochemical delithiation characteristics of the LiCoO2 support, the covalency of the Ru-O bond is effectively regulated during the OER process. The weakened Ru-O covalent bond inhibits the participation of lattice oxygen in the catalytic reaction and…

• NN
  National Natural Science Foundation of China

  Awards: 22075141, 52371226
• GO
  Government of Jiangsu Province

  Award: BK20220039
• NS
  National Science and Technology Council

  Awards: NSTC 112-2628-E-007-014-MY4, 112-2628-E-007-014-MY4