Hierarchically porous adamantane-shaped carbon nanoframes

Sungeun Jeoung, In Tae Ju, Jae Hyung Kim, Sang Hoon Joo, Hoi Ri Moon

Research output: Contribution to journalArticlepeer-review

27 Scopus citations

Abstract

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.

Original languageEnglish
Pages (from-to)18906-18911
Number of pages6
JournalJournal of Materials Chemistry A
Volume6
Issue number39
DOIs
StatePublished - 2018

Bibliographical note

Funding Information:
This work was supported by the National Research Foundation of Korea (NRF) Grant funded by the Ministry of Science and ICT (No. NRF-2016R1A5A1009405, NRF-2017R1A2B4008757, NRF-2017R1A2B2008464, and NRF-2017R1A4A1015533).

Publisher Copyright:
© 2018 The Royal Society of Chemistry.

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