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Nitrogen‐Doped Nanoporous Carbons through Direct Carbonization of a Metal‐Biomolecule Framework for Supercapacitor
Author(s) -
Zhang Jianhui,
Zhang Daliang,
Dai Guanghui,
Fang Qianrong,
Qiu Shilun
Publication year - 2016
Publication title -
chinese journal of chemistry
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 1.28
H-Index - 41
eISSN - 1614-7065
pISSN - 1001-604X
DOI - 10.1002/cjoc.201500685
Subject(s) - carbonization , supercapacitor , nanoporous , chemistry , nitrogen , carbon fibers , metal organic framework , metal , chemical engineering , biomolecule , specific surface area , nanotechnology , inorganic chemistry , capacitance , electrode , organic chemistry , catalysis , materials science , adsorption , composite material , composite number , biochemistry , engineering
Nitrogen‐doped nanoporous carbons have been successfully synthesized by direct carbonization of a nitrogen‐ rich metal‐biomolecule framework, zinc glutamate (Zn(H 2 O)(C 5 H 7 NO 4 )·H 2 O), as a template without any additional carbon or nitrogen sources. The surface area and pore size distribution of the resultant carbon materials were studied based on the carbonization temperature. These carbons exhibited high specific surface area (as high as 1619.2 m 2 ·g −1 for ZGC‐1000). Furthermore, ZGC‐1000 also provided a large specific capacitance of 140.8 F·g −1 at a current density of 0.25 A·g −1 when measured in a three‐electrode system. It is believed that the presence of the nitrogen‐doped nanoporous carbons prepared from the metal‐organic frameworks will further facilitate the exploration of such materials as supercapacitors.