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Guanine‐Derived Nitrogen‐Doped Ordered Mesoporous Carbons for Lithium‐Ion Battery Anodes
Author(s) -
Wu Guiming,
Shao Chunfeng,
Qiu Shujun,
Chu Hailiang,
Zou Yongjin,
Xiang Cuili,
Zhang Huanzhi,
Xu Fen,
Sun Lixian
Publication year - 2017
Publication title -
chemistryselect
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.437
H-Index - 34
ISSN - 2365-6549
DOI - 10.1002/slct.201702126
Subject(s) - anode , mesoporous material , nitrogen , lithium (medication) , materials science , electrochemistry , carbon fibers , guanine , battery (electricity) , doping , ion , chemical engineering , inorganic chemistry , lithium ion battery , chemistry , catalysis , composite number , electrode , organic chemistry , composite material , endocrinology , engineering , nucleotide , biochemistry , power (physics) , quantum mechanics , medicine , physics , optoelectronics , gene
In this study, nitrogen‐doped ordered mesoporous carbons (NOMCs) were synthesized by using low‐molecular‐weight phenolic resin precursors (resol) as carbon source, guanine as nitrogen source and SBA‐15 as hard template. Controlling the amount of guanine, NOMC with moderate nitrogen content (8.76 wt%) and specific surface area (1020 m 2 g −1 ) was obtained. The nitrogen atoms were incorporated into the carbon matrix in the form of pyridinic and graphitic nitrogen species. Used as lithium ion battery anode, it has a reversible capacity of 562.4 mA h g −1 at current density of 100 mA g −1 after 100 cycles. Moreover, it exhibits enhanced rate performance. The improved electrochemical properties can be ascribed to the nitrogen‐doped frameworks and ordered mesoporous structure.