Journal
JOURNAL OF MATERIALS CHEMISTRY A
Volume 6, Issue 39, Pages 18906-18911Publisher
ROYAL SOC CHEMISTRY
DOI: 10.1039/c8ta05747h
Keywords
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Funding
- National Research Foundation of Korea (NRF) Grant - Ministry of Science and ICT [NRF-2016R1A5A1009405, NRF-2017R1A2B4008757, NRF-2017R1A2B2008464, NRF-2017R1A4A1015533]
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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.
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