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Hierarchically porous adamantane-shaped carbon nanoframes

Hollow carbons have emerged as a new class of porous carbon materials, showing promise in a variety of areas. However, their morphology has been limited to spherical shapes, with the carbon shell possibly limiting access to their inner surfaces and utilization. Herein, we report a new type of hollow...

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Bibliographic Details
Published in:Journal of materials chemistry. A, Materials for energy and sustainability Materials for energy and sustainability, 2018, Vol.6 (39), p.18906-18911
Main Authors: Jeoung, Sungeun, Ju, In Tae, Kim, Jae Hyung, Joo, Sang Hoon, Moon, Hoi Ri
Format: Article
Language:English
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Summary:Hollow carbons have emerged as a new class of porous carbon materials, showing promise in a variety of areas. However, their morphology has been limited to spherical shapes, with the carbon shell possibly limiting access to their inner surfaces and utilization. Herein, we report a new type of hollow carbon material consisting of non-spherical, adamantane-shaped, hierarchically micro- and macro-porous, N-doped carbon nanoframes ( mM -NCs) by exploiting selective etching and pseudomorphic thermal conversion of zeolitic imidazolate framework-8 (ZIF-8). The mM -NCs showed superior performance as adsorbents for large dye molecules and as catalysts for the oxygen reduction reaction relative to macropore-free N-doped carbons, which can be attributed to the presence of macropores, fully utilizable pore surfaces, and nitrogen species.
ISSN:2050-7488
2050-7496
DOI:10.1039/C8TA05747H