Coralloid and hierarchical Co3O4 nanostructures used as supercapacitors with good cycling stability

被引：24

作者：

Wang, Xiuhua ^{[1
,2
]}

Wu, Xiaoxiu ^{[1
]}

Xu, Bingang ^{[2
]}

Hua, Tao ^{[2
]}

机构：

[1] Anhui Normal Univ, Coll Chem & Materials Sci, Key Lab Funct Mol Solids, Minist Educ, Wuhu 241000, Peoples R China

[2] Hong Kong Polytech Univ, Nanotechnol Ctr, Inst Text & Clothing, Kowloon, Hong Kong, Peoples R China

来源：

JOURNAL OF SOLID STATE ELECTROCHEMISTRY | 2016年 / 20卷 / 05期

关键词：

Co(OH)(2) nanosheets; Coralloid Co3O4; Supercapacitor; Solution-phase process; Hierarchical; NANOWIRE ARRAYS; RATE CAPABILITY; ANODE MATERIAL; PERFORMANCE; ELECTRODE; FABRICATION; COMPOSITES; BEHAVIORS; NANOTUBES;

D O I：

10.1007/s10008-016-3125-7

中图分类号：

O646 [电化学、电解、磁化学];

学科分类号：

081704 ;

摘要：

Coralloid and hierarchical Co3O4 nanostructures were synthesized by a facile two-step approach composed of room temperature solution-phase synthesis without any surfactant and calcination of precursor. Owing to the unique structural features, the capacitance of Co3O4 could reach up to 591 F g(-1) at a current density of 0.5 A g(-1). Especially the cycling stability remained about 97 % after 2000 cycles at a current density of 1 A g(-1). These results demonstrated that the coralloid and hierarchical Co3O4 were excellent candidates for electrochemical supercapacitor devices.

引用

页码：1303 / 1309

页数：7

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