Preparation and performance of NiCo2O4 nanowires-loaded graphene as supercapacitor material

被引：129

作者：

He, Guangyu ^{[1
,2
]}

Wang, Lin ^{[1
]}

Chen, Haiqun ^{[1
]}

Sun, Xiaoqiang ^{[1
]}

Wang, Xin ^{[2
]}

机构：

[1] Changzhou Univ, Key Lab Adv Catalyt Mat & Technol, Changzhou 213164, Jiangsu, Peoples R China

[2] Nanjing Univ Sci & Technol, Key Lab Minist Educ Soft Chem & Funct Mat, Nanjing 210094, Jiangsu, Peoples R China

来源：

MATERIALS LETTERS | 2013年 / 98卷

基金：

中国国家自然科学基金;

关键词：

Ni Co2O4 nanowires; Graphene; Nanocomposites; FTIR; Composite materials; Supercapacitor; NANOSTRUCTURES; CO3O4; OXIDE;

D O I：

10.1016/j.matlet.2013.02.035

中图分类号：

T [工业技术];

学科分类号：

08 ;

摘要：

NiCo2O4 nanowires-loaded reduced graphene oxide composite (NiCo2O4@RGO) was prepared by a facile hydrothermal method without any surfactant. Hexamethylenetetramine was introduced as a structure directing and assembling agent to the synthesis of NiCo2O4 nanowires. NiCo2O4 nanowires with an average size of 80 x 10 nm(2) are uniformly and densely dispersed on the graphene sheets. Cyclic voltammetry and galvanostatic charge-discharge measurements on NiCo2O4@RGO indicated a high specific capacitance of 737 F g(-1) at a current density of 1 A g(-1) and only 6% loss of the initial specific capacitance after 3000 charge/discharge cycles at 4 A g(-1) in 2 M KOH electrolyte, which is valuable for practical application in supercapacitors. (C) 2013 Elsevier B.V. All rights reserved.

引用

页码：164 / 167

页数：4

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