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Hollow Nanotubes of N‐Doped Carbon on CoS
Author(s) -
Chen Yuming,
Li Xiaoyan,
Park Kyusung,
Zhou Limin,
Huang Haitao,
Mai YiuWing,
Goodenough John B.
Publication year - 2016
Publication title -
angewandte chemie
Language(s) - English
Resource type - Journals
eISSN - 1521-3757
pISSN - 0044-8249
DOI - 10.1002/ange.201608489
Subject(s) - anode , materials science , carbon nanotube , doping , carbon fibers , substrate (aquarium) , carbon nanofiber , chemical engineering , nanofiber , ion , nanotechnology , nitrogen , battery (electricity) , inorganic chemistry , electrode , chemistry , organic chemistry , composite material , optoelectronics , oceanography , geology , composite number , engineering , power (physics) , physics , quantum mechanics
Low‐cost, single‐step synthesis of hollow nanotubes of N‐doped carbon deposited on CoS is enabled by the simultaneous use of three functionalities of polyacrylonitrite (PAN) nanofibers: 1) a substrate for loading active materials, 2) a sacrificial template for creating hollow tubular structures, and 3) a precursor for in situ nitrogen doping. The N‐doped carbon in hollow tubes of CoS provides a high‐capacity anode of long cycle life for a rechargeable Li‐ion or Na‐ion battery cell that undergoes the conversion reaction 2 A + +2 e − +CoS →Co+A 2 S with A=Li or Na.