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Separated Tellurium Nanoparticles Confined in Hollow Polypyrrole for High Performance Li‐Te Cathode
Author(s) -
Wang Deqiang,
Tian Qi,
Yang Lin,
Kuang Shuai,
Jin Rencheng,
Yue Hailong,
Wang Guangming,
Wang Qingyao,
Gao Shanmin
Publication year - 2019
Publication title -
chemistryselect
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.437
H-Index - 34
ISSN - 2365-6549
DOI - 10.1002/slct.201902107
Subject(s) - polypyrrole , tellurium , cathode , nanoparticle , materials science , current density , fabrication , chemical engineering , conductivity , nanotechnology , polymer , composite material , chemistry , metallurgy , polymerization , medicine , physics , alternative medicine , pathology , quantum mechanics , engineering
An innovative method for the fabrication of separated tellurium nanoparticles inside the hollow polypyrrole (PPy) has been developed. The polypyrrole effectively confines the Te nanoparticles through C−Te and C−Te‐N bonds and improves the conductivity and structural integrity. The unique Te/PPy architecture is proved to achieve good reversible specific capacity of 178.2 mAh g −1 (1112 mAh cm −3 ) at 100 mA g −1 and high rate capacity (98.4 mAh g −1 at the current density of 1600 mA g −1 ) when evaluated as cathode for Li−Te batteries.