Dual support ensuring high-energy supercapacitors via high-performance NiCo₂S₄@Fe₂O₃ anode and working potential enlarged MnO₂ cathode

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• 作者：Ruyue Jia^a ; ^b ; Feng Zhu^a ; ^b ; Shuo Sun^a ; ^b ; Teng Zhai^a ; ^b ; ^{tengzhai@njust.edu.cn} ; Hui Xia^a ; ^b ; ^{xiahui@njust.edu.cn}
• 关键词：Asymmetric supercapacitors ; NiCo2S4@Fe2O3 ; MnO2 ; Working potential window ; High energy
• 刊名：Journal of Power Sources
• 出版年：2017
• 出版时间：15 February 2017
• 年：2017
• 卷：341
• 期：Complete
• 页码：427-434
• 全文大小：3373 K
• 卷排序：341

文摘

An asymmetric NiCo2S4@Fe2O3//MnO2 supercapacitor is reported for the first time. Hierarchical NiCo2S4@Fe2O3 nanoarray with a capacitance of 342 F/g was used as anode. MnO2 nanoarray with enlarged working potential to 1.3 V was used as cathode. The device was operated stably in 0–2.3 V in neutral aqueous electrolyte. The device delivered high energy density (2.29 mWh cm−3) at high power density.