Unlocking Superior Conductivity in MOF Electrodes via a MXene‐Activated Electronic Inversion Layer

ABSTRACT Metal‐organic frameworks (MOFs) are rising stars for Li‐ion batteries (LIBs) electrodes. However, low conductivity of MOFs easily caused polarization and poor active site utilization. Here, an innovative electronic inversion layer (EIL) was proposed to guide the composite and interface design of MIL‐53(Fe) with Ti 3 C 2 T x , prompting a remarkable increase in the electrical conductivity of MIL‐53(Fe) from 4.94 × 10 −2 µS/cm to 46.65 mS/cm (30 MPa). This enhancement is attributed to the EIL activated by Ti 3 C 2 T x effectively shift the primary charge carriers from holes to high‐mobility electrons. Simultaneously, the localized EIL promoted the formation of a p–n junction and establishes a hole…

• NN
  National Natural Science Foundation of China

  Awards: 51804199, 52474330, 52164029, 52464033
• SS
  Shenzhen Science and Technology Innovation Program

  Award: KCXST20221021111200001