Light-Induced Variation of Lithium Coordination Environment in g-C 3 N 4 Nanosheet for Highly Efficient Oxygen Reduction Reactions

The structure and electronic state of the active center in a single-atom catalyst undergo noticeable changes during a dynamic catalytic process. The metal atom active center is not well demonstrated in a dynamic manner. This study demonstrated that Li metal atoms, serving as active centers, can migrate on a C3N4 monolayer or between C3N4 monolayers when exposed to light irradiation. This migration alters the local coordination environment of Li in the C3N4 nanosheets, leading to a significant enhancement in photocatalytic activity. The photocatalytic H2O2 process could be maintained for 35 h with a 920 mmol/g record-high yield, corresponding to a 0.4% H2O2 concentration, which is far greater than the value…

• BO
  Beijing Outstanding Young Talents

  Award: BJJWZYJH01201910005018
• NN
  National Natural Science Foundation of China

  Awards: 12374253, 11874001, 12274011, 51988101