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Advanced Ti‐Doped Fe 2 O 3 @PEDOT Core/Shell Anode for High‐Energy Asymmetric Supercapacitors
Author(s) -
Zeng Yinxiang,
Han Yi,
Zhao Yitong,
Zeng Yan,
Yu Minghao,
Liu Yongjiang,
Tang Haolin,
Tong Yexiang,
Lu Xihong
Publication year - 2015
Publication title -
advanced energy materials
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 10.08
H-Index - 220
eISSN - 1614-6840
pISSN - 1614-6832
DOI - 10.1002/aenm.201402176
Subject(s) - supercapacitor , materials science , anode , pedot:pss , cathode , nanotechnology , energy storage , capacitance , optoelectronics , electrode , doping , layer (electronics) , electrical engineering , power (physics) , chemistry , engineering , physics , quantum mechanics
An effective strategy to significantly boost the capacitive properties of Fe 2 O 3 ‐based anodes by Ti doping and poly(3,4‐ethylenedioxythiophene) (PEDOT) coating is successfully demonstrated. The Ti‐Fe 2 O 3 @PEDOT electrode exhibits a significant capacitance improvement and exceptionally cyclic stability. A remarkable energy density of 0.89 mWh cm −3 can be obtained for a high‐performance asymmetric supercapacitor device consisting of Ti‐Fe 2 O 3 @PEDOT and a MnO 2 anode.