One-dimensional single atom arrays on ferroelectric nanosheets for enhanced CO2 photoreduction

Abstract Single-atom catalysts show excellent catalytic performance because of their coordination environments and electronic configurations. However, controllable regulation of single-atom permutations still faces challenges. Herein, we demonstrate that a polarization electric field regulates single atom permutations and forms periodic one-dimensional Au single-atom arrays on ferroelectric Bi 4 Ti 3 O 12 nanosheets. The Au single-atom arrays greatly lower the Gibbs free energy for CO 2 conversion via Au-O=C=O-Au dual-site adsorption compared to that for Au-O=C=O single-site adsorption on Au isolated single atoms. Additionally, the Au single-atom arrays suppress the depolarization of Bi 4 Ti 3 O 12 , so it…

• NN
  National Natural Science Foundation of China

  Awards: 2022YFB3803600, 51972288, 12074016, 12274009, 52272244 and 51972288, 52272244
• CS
  China Scholarship Council
• NK
  National Key Research and Development Program of China

  Awards: 12074016, 2022YFB3803600
• FR
  Fundamental Research Funds for the Central Universities

  Awards: 51972288, 2022YFB3803600, 2652022202