Vapor‐Assisted Catalysis Enables Precise Construction of MOF‐Derived Hierarchical Carbon Nanoarrays for High‐Performance Supercapacitors

ABSTRACT The synthesis of MOF‐derived carbons with high surface area and conductivity is challenged by a fundamental trade‐off between architectural preservation and catalytic graphitization. Here, we introduce a spatially decoupled, vapor‐assisted pyrolysis strategy where a Co‐MOF precursor array is physically separated from a vapor‐generating Zn‐MOF auxiliary. During pyrolysis, a remote Zn vapor flux simultaneously preserves the precursor's nanosheet morphology by suppressing Co nanoparticle aggregation and catalytically grows dense carbon nanotube (CNT) arrays. This process yields an integrated 0D–1D–2D hierarchical carbon architecture with high surface area and graphitization. As a self‐supporting…

• NN
  National Natural Science Foundation of China

  Award: 22207082
• AO
  Academy of Finland

  Awards: 355747, 355747