Electronic Modulation and Built‐in Electric Field Strategies in Heterostructures Together Induce 1T‐Rich MoS 2 Conversion for Advanced Sodium Storage

Abstract 1T‐MoS 2 is considered an attractive energy storage material due to its large layer spacing and excellent electrical conductivity. Unfortunately, 1T‐MoS 2 is difficult to synthesize directly due to the substability, which limits its development and application. Electron‐filling engineering of Mo 4d orbitals is the core idea to induce an efficient conversion of 2H to 1T phase. Based on this theory, a homogeneous CuS@MoS 2 heterogeneous nanosheet is successfully constructed based on electron‐rich CuS as an electron donor. Both density functional theory (DFT) and X‐ray absorption fine structure analysis (XAFS) illustrate that part of the electrons from Cu at the heterogeneous interface are transferred to…

• NN
  National Natural Science Foundation of China

  Awards: 42167068, U23A20582, 22269020