A novel and unique nickel-cobalt hydroxyfluorides (NiCo-HF) nanowires material is fabricated by one-pot solvothermal synthesis method for asymmetric supercapacitor. The synthesis mechanism and factors that influence the formation of the NiCo-HF nanowires have been further discussed. The as-prepared NiCo-HF electrode exhibits a high specific capacitance of 3,372.6 F g(-1), and the capacitance retention of 94.3% can be achieved at a high current density of 20 A g(-1) after 10,000 cycles. The outstanding electrochemical performance of the electrode can be attributed to the synergistic effect of the nanowires morphology and complicated redox process of active material. Furthermore, an asymmetric supercapacitor assembled with NiCo-HF nanowires as positive electrode and activated carbon as the negative electrode shows an ultrahigh energy density of 83.6 Wh kg(-1) at a power density of 379.4Wkg(-1) and an excellent cycling stability with 86.3% capacitance retention after 10,000 cycles, indicating that this novel material has great promise for potential application in energy storage device. (C) 2018 Science China Press. Published by Elsevier B.V. and Science China Press. All rights reserved.
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School of Materials Science and Engineering,Hefei University of TechnologySchool of Materials Science and Engineering,Hefei University of Technology
Xia Shu
Cui-Ping Yu
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School of Materials Science and Engineering,Hefei University of TechnologySchool of Materials Science and Engineering,Hefei University of Technology
Cui-Ping Yu
Ming-Feng Xiao
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School of Materials Science and Engineering,Hefei University of TechnologySchool of Materials Science and Engineering,Hefei University of Technology
Ming-Feng Xiao
Jie-Wu Cui
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School of Materials Science and Engineering,Hefei University of TechnologySchool of Materials Science and Engineering,Hefei University of Technology
Jie-Wu Cui
Yong-Qiang Qin
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School of Materials Science and Engineering,Hefei University of TechnologySchool of Materials Science and Engineering,Hefei University of Technology
Yong-Qiang Qin
Hong-Mei Zheng
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School of Materials Science and Engineering,Hefei University of TechnologySchool of Materials Science and Engineering,Hefei University of Technology
Hong-Mei Zheng
Yong Zhang
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School of Materials Science and Engineering,Hefei University of TechnologySchool of Materials Science and Engineering,Hefei University of Technology
Yong Zhang
Dong Chen
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School of Instrument Science and Opto-electronics Engineering,Hefei University of TechnologySchool of Materials Science and Engineering,Hefei University of Technology
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Natl Taipei Univ Technol, Dept Chem Engn & Biotechnol, Taipei 106, TaiwanAnna Univ, Dept Appl Sci & Technol, Chennai 600025, Tamil Nadu, India
Pan, Guan-Ting
Chung, Hsiu-Ying
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Kun Shan Univ, Green Energy Technol Res Ctr, Tainan 710, Taiwan
Kun Shan Univ, Dept Mat Engn, Tainan 710, TaiwanAnna Univ, Dept Appl Sci & Technol, Chennai 600025, Tamil Nadu, India
Chung, Hsiu-Ying
Chong, Siewhui
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Univ Nottingham Malaysia, Dept Chem & Environm Engn, Jalan Broga 43500, MalaysiaAnna Univ, Dept Appl Sci & Technol, Chennai 600025, Tamil Nadu, India
Chong, Siewhui
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Thiripuranthagan, Sivakumar
Yang, Thomas Chung-Kuang
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Natl Taipei Univ Technol, Dept Chem Engn & Biotechnol, Taipei 106, TaiwanAnna Univ, Dept Appl Sci & Technol, Chennai 600025, Tamil Nadu, India
Yang, Thomas Chung-Kuang
Huang, Chao-Ming
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Kun Shan Univ, Green Energy Technol Res Ctr, Tainan 710, Taiwan
Kun Shan Univ, Dept Mat Engn, Tainan 710, TaiwanAnna Univ, Dept Appl Sci & Technol, Chennai 600025, Tamil Nadu, India
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Cent South Univ, Coll Chem & Chem Engn, Changsha 410083, Peoples R ChinaSouthwest Univ Sci & Technol, Sch Mat Sci & Engn, State Key Lab Environm Friendly Energy Mat, Mianyang 621010, Peoples R China
Wang, Yingrong
Wang, Jiaheng
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Southwest Univ Sci & Technol, Sch Mat Sci & Engn, State Key Lab Environm Friendly Energy Mat, Mianyang 621010, Peoples R ChinaSouthwest Univ Sci & Technol, Sch Mat Sci & Engn, State Key Lab Environm Friendly Energy Mat, Mianyang 621010, Peoples R China
Wang, Jiaheng
Liu, Yuxing
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Southwest Univ Sci & Technol, Sch Mat Sci & Engn, State Key Lab Environm Friendly Energy Mat, Mianyang 621010, Peoples R ChinaSouthwest Univ Sci & Technol, Sch Mat Sci & Engn, State Key Lab Environm Friendly Energy Mat, Mianyang 621010, Peoples R China
Liu, Yuxing
Hu, Cunhai
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Southwest Univ Sci & Technol, Sch Mat Sci & Engn, State Key Lab Environm Friendly Energy Mat, Mianyang 621010, Peoples R ChinaSouthwest Univ Sci & Technol, Sch Mat Sci & Engn, State Key Lab Environm Friendly Energy Mat, Mianyang 621010, Peoples R China
Hu, Cunhai
Zhou, Tianlong
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Southwest Univ Sci & Technol, Sch Mat Sci & Engn, State Key Lab Environm Friendly Energy Mat, Mianyang 621010, Peoples R ChinaSouthwest Univ Sci & Technol, Sch Mat Sci & Engn, State Key Lab Environm Friendly Energy Mat, Mianyang 621010, Peoples R China
Zhou, Tianlong
Yu, Qinlin
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Southwest Univ Sci & Technol, Sch Mat Sci & Engn, State Key Lab Environm Friendly Energy Mat, Mianyang 621010, Peoples R ChinaSouthwest Univ Sci & Technol, Sch Mat Sci & Engn, State Key Lab Environm Friendly Energy Mat, Mianyang 621010, Peoples R China
Yu, Qinlin
Yang, Junxiao
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Southwest Univ Sci & Technol, Sch Mat Sci & Engn, State Key Lab Environm Friendly Energy Mat, Mianyang 621010, Peoples R ChinaSouthwest Univ Sci & Technol, Sch Mat Sci & Engn, State Key Lab Environm Friendly Energy Mat, Mianyang 621010, Peoples R China