Facile growth of hexagonal NiO nanoplatelet arrays assembled by mesoporous nanosheets on Ni foam towards high-performance electrochemical capacitors

被引：58

作者：

Yuan, Changzhou ^{[1
]}

Li, Jiaoyang ^{[1
]}

Hou, Linrui ^{[1
]}

Yang, Long ^{[1
]}

Shen, Laifa ^{[2
]}

Zhang, Xiaogang ^{[2
]}

机构：

[1] Anhui Univ Technol, Sch Mat & Engn, Maanshan 243002, Peoples R China

[2] Nanjing Univ Aeronaut & Astronaut, Coll Mat Sci & Engn, Nanjing 210016, Jiangsu, Peoples R China

来源：

ELECTROCHIMICA ACTA | 2012年 / 78卷

基金：

中国国家自然科学基金; 高等学校博士学科点专项科研基金;

关键词：

Nickel oxide nanoplatelet arrays; Nickel foam; Mesoporous; Electrochemical capacitors; CO3O4 NANOWIRE ARRAYS; NICKEL-OXIDE; CARBON NANOTUBES; ENERGY-STORAGE; SUPERCAPACITORS; ELECTRODES; TEMPLATE; ROUTE;

D O I：

10.1016/j.electacta.2012.06.044

中图分类号：

O646 [电化学、电解、磁化学];

学科分类号：

081704 ;

摘要：

In the work, we develop a novel two-step strategy to synthesize self-supported hexagonal nickel oxide nanoplatelet arrays on Ni foam: precipitating hydroxides followed by calcinating process. These nanoplatelets are composed of a multilayer of ultrathin mesoporous NiO nanosheets. The unique Ni foam-supported mesoporous NiO nanoplatelet arrays electrode promises fast ion and electron transport, large electroactive surface area, and excellent structural stability. As a result, superior pseudocapacitive performance is achieved with large specific capacitance in the range of 1124-864 F g(-1) and excellent cycling stability up to 5000 cycles, suggesting their promising application for electrochemical capacitors. (C) 2012 Elsevier Ltd. All rights reserved.

引用

页码：532 / 538

页数：7

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