Stereoselectively Assembled MOF Host for Self‐boosting Catalytic Synthesis of Carbon Hybrids

Cost‐effective metal‐based nanostructured hybrids have been widely dedicated to potential energy storage and conversion applications. Yet, controllably engineering the functional building blocks in flexible hierarchical structures with high reactivity, good electron conductivity and excellent structural stability remains challenging. Herein, we develop a facile methodology for the synthesis of precise carbon‐confined hybrid nanostructures by stereoselective assembly accompanied with the self‐boosting catalytic pyrolysis. Polyacrylonitrile fiber film favors not only the metal‐polymer coordination, but also oriented assembly to ensure the well‐defined nanostructure of carbon hybrids. During chemical molecules vapor deposition (CMVD), active cobalt nanoparticles self‐boosting organic molecules (e.g. melamine) for the catalytic growth of carbon nanotubes branches deliver hierarchical carbon hybrids. The resulting carbon hybrids exhibit outstanding electrochemical performance for metal ion batteries, e.g. a high specific capacity of 680 mAh g−1 after 320 cycles for LIBs and 220 mAh g−1 after 500 cycles for SIBs without decay.

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