Enhancing photocatalytic H2O2 production with Au co-catalysts through electronic structure modification

Abstract Gold-based co-catalysts are a promising class of materials with potential applications in photocatalytic H 2 O 2 production. However, current approaches with Au co-catalysts show limited H 2 O 2 production due to intrinsically weak O 2 adsorption at the Au site. We report an approach to strengthen O 2 adsorption at Au sites, and to improve H 2 O 2 production, through the formation of electron-deficient Au δ+ sites by modifying the electronic structure. In this case, we report the synthesis of TiO 2 /MoS x -Au, following selective deposition of Au onto a MoS x surface which is then further anchored onto TiO 2 . We further show that the catalyst achieves a significantly increased H 2 O 2 production rate…

• NN
  National Natural Science Foundation of China

  Awards: 22261142666, 22278324, 52073223, U22A20147
• NS
  Natural Science Foundation of Hubei Province

  Award: 2022CFA001
• CU
  China University of Geosciences