β-Ni(OH)2 nanosheets grown on graphene as advanced electrochemical pseudocapacitor materials with improved rate capability and cycle performance

被引：20

作者：

Fu, Weidong ^{[1
]}

Gong, Yichao ^{[1
]}

Wang, Meng ^{[1
]}

Yao, Yadong ^{[1
]}

Wei, Niandong ^{[2
]}

Zou, Changwu ^{[1
]}

Yin, Guangfu ^{[1
]}

Huang, Zhongbing ^{[1
]}

Liao, Xiaoming ^{[1
]}

Chen, Xianchun ^{[1
]}

机构：

[1] Sichuan Univ, Coll Mat Sci & Engn, Chengdu 610065, Sichuan, Peoples R China

[2] Sichuan Univ, Coll Elect & Informat Engn, Chengdu 610065, Sichuan, Peoples R China

来源：

MATERIALS LETTERS | 2014年 / 134卷

关键词：

Graphene oxide; Nickel hydroxide; Composite materials; Electrical properties; Supercapacitor; COMPOSITE; SUPERCAPACITORS; OXIDE;

D O I：

10.1016/j.matlet.2014.07.063

中图分类号：

T [工业技术];

学科分类号：

08 ;

摘要：

Nanosheets composite consisting of beta-Ni(OH)(2) and reduction graphene oxide (beta-Ni(OH)(2)/RGO) was successfully synthesized by improved hydrothermal process as electrochemical capacitor materials. The beta-Ni(OH)(2)/RGO composite was tested as positive electrode material in a KOH aqueous electrolyte. The results show that the sample exhibits a high specific capacitance of 1740.56 F/g at a charge and discharge current density of 2.5 A/g, and the specific capacitance of beta-Ni(OH)(2)/RGO is as high as 1326 F/g, even if the current density increase to 50 A/g. What is more, it exhibits an excellent long cycle life along with 93.8% specific capacitance retained after 1000 charge/discharge cycles. This composite displays a great promise as electrode materials for supercapacitor. (C) 2014 Elsevier B.V. All rights reserved.

引用

页码：107 / 110

页数：4

共 12 条

[1] A facile one-pot synthesis of yolk-shell ZnO microsphere-graphene composite induced by graphene oxide [J].

Gong, Yichao ;

Meng, Xiaopeng ;

Zou, Changwu ;

Yao, Yadong ;

Fu, Weidong ;

Wang, Meng ;

Yin, Guangfu ;

Huang, Zhongbing ;

Liao, Xiaoming ;

Chen, Xianchun .

MATERIALS LETTERS, 2013, 106 :171-174

[2] Non-aqueous approach to the preparation of reduced graphene oxide/α-Ni(OH)2 hybrid composites and their high capacitance behavior [J].

Lee, Jeong Woo ;

Ahn, Taebin ;

Soundararajan, Devaraj ;

Ko, Jang Myoun ;

Kim, Jong-Duk .

CHEMICAL COMMUNICATIONS, 2011, 47 (22) :6305-6307

[3] One-pot hydrothermal synthesis of reduced graphene oxide/Ni(OH)2 films on nickel foam for high performance supercapacitors [J].

Min, Shudi ;

Zhao, Chongjun ;

Chen, Guorong ;

Qian, Xiuzhen .

ELECTROCHIMICA ACTA, 2014, 115 :155-164

[4] A Solid-State Reaction Route to Anchoring Ni(OH)2 Nanoparticles on Reduced Graphene Oxide Sheets for Supercapacitors [J].

Sun, Zhipeng ;

Lu, Xianmao .

INDUSTRIAL & ENGINEERING CHEMISTRY RESEARCH, 2012, 51 (30) :9973-9979

[5] Ni(OH)2 Nanoplates Grown on Graphene as Advanced Electrochemical Pseudocapacitor Materials [J].

Wang, Hailiang ;

Casalongue, Hernan Sanchez ;

Liang, Yongye ;

Dai, Hongjie .

JOURNAL OF THE AMERICAN CHEMICAL SOCIETY, 2010, 132 (21) :7472-7477

[6] Hierarchical carbon nanotube/α-Ni(OH)2 nanosheet composite paper with enhanced electrochemical capacitance [J].

Wang, Linong ;

Chen, Hongyuan ;

Cai, Feng ;

Chen, Minghai .

MATERIALS LETTERS, 2014, 115 :168-171

[7] Controlled synthesis and enhanced supercapacitor performance of uniform pompon-like β-Ni(OH)2 hollow microspheres [J].

Wang, Yan ;

Gai, Shili ;

Li, Chunxia ;

He, Fei ;

Zhang, Milin ;

Yan, Yongde ;

Yang, Piaoping .

ELECTROCHIMICA ACTA, 2013, 90 :673-681

[8] Electrostatic Induced Stretch Growth of Homogeneous β-Ni(OH)2 on Graphene with Enhanced High-Rate Cycling for Supercapacitors [J].

Wu, Zhong ;

Huang, Xiao-Lei ;

Wang, Zhong-Li ;

Xu, Ji-Jing ;

Wang, Heng-Guo ;

Zhang, Xin-Bo .

SCIENTIFIC REPORTS, 2014, 4

[9] Graphene homogeneously anchored with Ni(OH)2 nanoparticles as advanced supercapacitor electrodes [J].

Yan, Huijun ;

Bai, Jianwei ;

Wang, Jun ;

Zhang, Xiuyu ;

Wang, Bin ;

Liu, Qi ;

Liu, Lianhe .

CRYSTENGCOMM, 2013, 15 (46) :10007-10015

[10] Hierarchical β-Ni(OH)2 and NiO carnations assembled from nanosheet building blocks [J].

Yang, Li-Xia ;

Zhu, Ying-Jie ;

Tong, Hua ;

Liang, Zhen-Hua ;

Wang, Wei-Wei .

CRYSTAL GROWTH & DESIGN, 2007, 7 (12) :2716-2719

← 1 2 →