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Well‐Dispersed ZIF‐Derived Co,N‐Co‐doped Carbon Nanoframes through Mesoporous‐Silica‐Protected Calcination as Efficient Oxygen Reduction Electrocatalysts
Author(s) -
Shang Lu,
Yu Huijun,
Huang Xing,
Bian Tong,
Shi Run,
Zhao Yufei,
Waterhouse Geoffrey I. N.,
Wu LiZhu,
Tung ChenHo,
Zhang Tierui
Publication year - 2016
Publication title -
advanced materials
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 10.707
H-Index - 527
eISSN - 1521-4095
pISSN - 0935-9648
DOI - 10.1002/adma.201505045
Subject(s) - calcination , zeolitic imidazolate framework , materials science , pyrolysis , mesoporous material , imidazolate , carbon fibers , chemical engineering , catalysis , oxygen reduction , nanotechnology , metal organic framework , organic chemistry , chemistry , adsorption , composite number , composite material , electrode , electrochemistry , engineering
A well‐dispersed Co,N co‐doped carbon nanoframework (Co,N‐CNF) with hierarchically porous structure is successfully synthesized from zeolitic imidazolate framework (ZIF) precursors via a mesoporous‐silica‐protected calcination strategy. By preventing the irreversible fusion and aggregation during the high‐temperature pyrolysis step with this protection strategy, the Co,N‐CNF exhibits comparable oxygen reduction reaction (ORR) catalytic activity to that of commercial Pt catalysts with the same loading.