Porous Nickel Hydroxide Manganese Dioxide-Reduced Graphene Oxide Ternary Hybrid Spheres as Excellent Supercapacitor Electrode Materials

被引：243

作者：

Chen, Hao ^{[1
,2
,3
,4
]}

Zhou, Shuxue ^{[1
,2
]}

Wu, Limin ^{[1
,2
]}

机构：

[1] Fudan Univ, Dept Mat Sci, Shanghai 20043, Peoples R China

[2] Fudan Univ, Adv Mat Lab, Shanghai 20043, Peoples R China

[3] Zhejiang Agr & Forestry Univ, Sch Engn, Hangzhou Linan 311300, Peoples R China

[4] Zhejiang Agr & Forestry Univ, Natl Engn & Technol Res Ctr Wood Based Resources, Hangzhou Linan 311300, Peoples R China

来源：

ACS APPLIED MATERIALS & INTERFACES | 2014年 / 6卷 / 11期

基金：

中国国家自然科学基金;

关键词：

graphene; manganese dioxide; nickel hydroxide; ternary hybrid spheres; supercapacitor; ASYMMETRIC SUPERCAPACITORS; HIGH-ENERGY; HIERARCHICAL BETA-NI(OH)(2); POWER-DENSITY; PERFORMANCE; NANOSHEETS; NANOSTRUCTURES; MICROSPHERES; FABRICATION; NANOFLAKES;

D O I：

10.1021/am5014375

中图分类号：

TB3 [工程材料学];

学科分类号：

0805 ; 080502 ;

摘要：

This paper reports the first nickel hydroxide-manganese dioxide-reduced graphene oxide (Ni(OH)(2)-MnO2-RGO) ternary hybrid sphere powders as supercapacitor electrode materials. Due to the abundant porous nanostructure, relatively high specific surface area, well-defined spherical morphology, and the synergetic effect of Ni(OH)(2), MnO2, and RGO, the electrodes with the as-obtained Ni(OH)(2)-MnO2-RGO ternary hybrid spheres as active materials exhibited significantly enhanced specific capacitance (1985 F.g(-1)) and energy density (54.0 Wh.kg(-1)), based on the total mass of active materials. In addition, the Ni(OH)(2)-MnO2-RGO hybrid spheres-based asymmetric supercapacitor also showed satisfying energy density and electrochemical cycling stability.

引用

页码：8621 / 8630

页数：10

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