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A High-Energy-Density Hybrid Supercapacitor with P-Ni(OH)(2)@Co(OH)(2)Core-Shell Heterostructure and Fe(2)O(3)Nanoneedle Arrays as Advanced Integrated Electrodes

文献类型：期刊论文

作者Li, Kunzhen2,3; Zhao, Bangchuan2; Bai, Jin2,3; Ma, Hongyang2,3; Fang, Zhitang2; Zhu, Xuebin2; Sun, Yuping1,2
刊名SMALL
出版日期2020-07-01
关键词core-shell heterostructures Fe2O3 CC hybrid supercapacitors integrated electrodes P-Ni(OH)(2)@Co(OH)(2) NF
ISSN号1613-6810
DOI10.1002/smll.202001974
通讯作者Zhao, Bangchuan(bchzhao@issp.ac.cn) ; Zhu, Xuebin(xbzhu@issp.ac.cn)
英文摘要Transition metal hydro/oxides (TMH/Os) are treated as the most promising alternative supercapacitor electrodes thanks to their high theoretical capacitance due to the various oxidation states and abundant cheap resources of TMH/Os. However, the poor conductivity and logy reaction kinetics of TMH/Os severely restrict their practical application. Herein, hierarchical core-shell P-Ni(OH)(2)@Co(OH)(2)micro/nanostructures are in situ grown on conductive Ni foam (P-Ni(OH)(2)@Co(OH)(2)/NF) through a facile stepwise hydrothermal process. The unique heterostructure composed of P-Ni(OH)(2)rods and Co(OH)(2)nanoflakes boost the charge transportation and provide abundant active sites when used as the intergrated cathode for supercapacitors. It delivers an ultrahigh areal specific capacitance of 4.4 C cm(-2)at 1 mA cm(-2)and the capacitance can maintain 91% after 10 & x202f;000 cycles, showing an ultralong cycle life. Additionally, a hybrid supercapacitor composed with P-Ni(OH)(2)@Co(OH)(2)/NF cathode and Fe2O3/CC anode shows a wider voltage window of 1.6 V, a remarkable energy density of 0.21 mWh cm(-2)at the power density of 0.8 mW cm(-2), and outstanding cycling stability with about 81% capacitance retention after 5000 cycles. This innovative study not only supplies a newfashioned electronic apparatus with high-energy density and cycling stability but offers a fresh reference and enlightenment for synthesizing advanced integrated electrodes for high-performance hybrid supercapacitors.
WOS关键词DOUBLE HYDROXIDE NANOSHEETS ; BINDER-FREE ELECTRODE ; NICKEL FOAM ; PERFORMANCE ; CATHODE
资助项目National Key Research and Development program of China[2017YFA0402800] ; National Natural Science Foundation of China[U1732160]
WOS研究方向Chemistry ; Science & Technology - Other Topics ; Materials Science ; Physics
语种英语
WOS记录号WOS:000544618900001
出版者WILEY-V C H VERLAG GMBH
资助机构National Key Research and Development program of China ; National Natural Science Foundation of China
源URL[http://ir.hfcas.ac.cn:8080/handle/334002/71102]  
专题中国科学院合肥物质科学研究院
通讯作者Zhao, Bangchuan; Zhu, Xuebin
作者单位1.Chinese Acad Sci, High Field Magnet Lab, Hefei 230031, Peoples R China
2.Chinese Acad Sci, Inst Solid State Phys, Key Lab Mat Phys, Hefei 230031, Peoples R China
3.Univ Sci & Technol China, Sci Isl Branch Grad Sch, Hefei 230026, Peoples R China
推荐引用方式
GB/T 7714		 Li, Kunzhen,Zhao, Bangchuan,Bai, Jin,et al. A High-Energy-Density Hybrid Supercapacitor with P-Ni(OH)(2)@Co(OH)(2)Core-Shell Heterostructure and Fe(2)O(3)Nanoneedle Arrays as Advanced Integrated Electrodes[J]. SMALL,2020.
APA Li, Kunzhen.,Zhao, Bangchuan.,Bai, Jin.,Ma, Hongyang.,Fang, Zhitang.,...&Sun, Yuping.(2020).A High-Energy-Density Hybrid Supercapacitor with P-Ni(OH)(2)@Co(OH)(2)Core-Shell Heterostructure and Fe(2)O(3)Nanoneedle Arrays as Advanced Integrated Electrodes.SMALL.
MLA Li, Kunzhen,et al."A High-Energy-Density Hybrid Supercapacitor with P-Ni(OH)(2)@Co(OH)(2)Core-Shell Heterostructure and Fe(2)O(3)Nanoneedle Arrays as Advanced Integrated Electrodes".SMALL (2020).

入库方式： OAI收割

来源：合肥物质科学研究院

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