Nanoarchitectonics of Metal–Organic Framework on Fullerene Assemblies: Fabrication of Hierarchical Nanostructured Carbon Electrocatalysts

Rabindra Nath Acharyya; Biswa Nath Bhadra; Sabina Shahi; Kenji Hayashida; Shusaku Fujita; Kotaro Takeyasu; Katsuhiko Ariga; Lok Kumar Shrestha

doi:10.1021/acsami.6c03512

論文 Nanoarchitectonics of Metal–Organic Framework on Fullerene Assemblies: Fabrication of Hierarchical Nanostructured Carbon Electrocatalysts

Rabindra Nath Acharyya ; Biswa Nath Bhadra ; Sabina Shahi ; Kenji Hayashida ; Shusaku Fujita ; Kotaro Takeyasu ; Katsuhiko Ariga ; Lok Kumar Shrestha

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Rabindra Nath Acharyya, Biswa Nath Bhadra, Sabina Shahi, Kenji Hayashida, Shusaku Fujita, Kotaro Takeyasu, Katsuhiko Ariga, Lok Kumar Shrestha. Nanoarchitectonics of Metal–Organic Framework on Fullerene Assemblies: Fabrication of Hierarchical Nanostructured Carbon Electrocatalysts. ACS Applied Materials & Interfaces. 2026, 18 (20), 28717-28727. https://doi.org/10.1021/acsami.6c03512

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We introduce a comprehensive nanoarchitectonics approach for constructing metal–organic framework on fullerene (MOFOF) hybrids with diverse dimensionalities spanning 0D nanospheres, 1D nanorods and nanotubes, 2D sheets, and 3D cubic assemblies, and demonstrate their potential for electrocatalyst development through the pyrolysis of a selected hybrid. Through a sequential layer-by-layer (or, step-by-step) growth of a typical MOF (ZIF-67) on self-assembled fullerene supports, we generated a family of MOFOF nanostructures with diverse morphologies. Subsequent high-temperature carbonization and ammonia-assisted nitrogen doping are expected to transform these MOFOF precursors into hierarchical nitrogen-doped Co/C electrocatalysts featuring well-defined Co–Nx active sites embedded within graphitized carbon frameworks. The superior performance arises from the synergistic integration of Co-supported active sites and protective graphitic carbon shells.

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