Formation of hollow-cubic Ni(OH)2/CuS2nanocomposite via sacrificial template method for high performance supercapacitors

被引：11

作者：

Wang, Shitong ^{[1
]}

Wang, Jiemei ^{[2
]}

Ji, Xiang ^{[2
]}

Meng, Jiaxi ^{[1
]}

Sui, Yanwei ^{[1
]}

Wei, Fuxiang ^{[1
]}

Qi, Jiqiu ^{[1
]}

Meng, Qingkun ^{[1
]}

Ren, Yaojian ^{[1
]}

He, Yezeng ^{[1
,3
]}

Zhuang, Dongdong ^{[4
]}

机构：

[1] China Univ Min & Technol, Sch Mat & Phys, Xuzhou 221116, Jiangsu, Peoples R China

[2] China Natl Heavy Duty Truck Grp Co Ltd, 777 Huaao Rd, Jinan, Peoples R China

[3] Jiangsu Prov Engn Lab High Efficient Energy Stora, Xuzhou 221116, Jiangsu, Peoples R China

[4] Jiangsu Univ, Sch Mat Sci & Engn, Zhenjiang 212013, Jiangsu, Peoples R China

来源：

JOURNAL OF MATERIALS SCIENCE-MATERIALS IN ELECTRONICS | 2020年 / 31卷 / 13期

基金：

国家重点研发计划;

关键词：

ASYMMETRIC SUPERCAPACITOR; ELECTRODE MATERIALS; CONSTRUCTION; COMPOSITES; NANOFLAKES; NANOSHEETS; FRAMEWORK; DESIGN; LIFE; MNO2;

D O I：

10.1007/s10854-020-03597-z

中图分类号：

TM [电工技术]; TN [电子技术、通信技术];

学科分类号：

0808 ; 0809 ;

摘要：

Metal hydroxide serving as a promising electrode material for the supercapacitors, has attracted considerable interests in the area of energy storage. However, the low cycling stability and electrical conductivity restrict its further application. Here, a kind of hollow-cubic Ni(OH)(2)/CuS(2)with excellent electrochemical performance has been prepared via a facile one-step sacrificial template method. The obtained Ni(OH)(2)/CuS(2)shows an outstanding specific capacitance of 1174 F g(-1)at 1 A g(-1)with 73.9% retention after 2000 charge-discharge cycles. Furthermore, the assembled asymmetric supercapacitors based on hollow-cubic Ni(OH)(2)/CuS(2)nanocomposite and reduced graphene oxide (RGO) exhibits a high specific energy density of 27.8 Wh kg(-1)at the power density of 390 W kg(-1).

引用

页码：10489 / 10498

页数：10

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