Fabrication of nickel hydroxide microtubes with micro- and nano-scale composite structure and improving electrochemical performance

被引：67

作者：

Tao, Feifei ^{[1
]}

Guan, Mingyun ^{[1
]}

Zhou, Yiming ^{[2
]}

Zhang, Li ^{[2
]}

Xu, Zheng ^{[1
]}

Chen, Jun ^{[3
]}

机构：

[1] Nanjing Univ, Sch Chem & Chem Engn, Lab Solid State Microstruct, State Key Lab Coordinat Chem, Nanjing 210093, Peoples R China

[2] Nanjing Normal Univ, Dept Chem, Nanjing 210097, Peoples R China

[3] Nankai Univ, Inst New Energy Mat Chem, Tianjin 300071, Peoples R China

来源：

CRYSTAL GROWTH & DESIGN | 2008年 / 8卷 / 07期

关键词：

D O I：

10.1021/cg7012123

中图分类号：

O6 [化学];

学科分类号：

0703 ;

摘要：

The beta-Ni(OH)(2) microtubes with hierarchical structure wall composed of interweaved nanolamella were successfully fabricated by the template-free wet-chemical approach. To the best of our knowledge, it is the first report on Ni(OH)(2) microtubes with the micro- and nanoscale composite structure. This method is very facile and effective to prepare the tubular materials with high yield and uniform tube diameter. The intermediate product and final composite structures were well characterized by X-ray diffraction (XRD), scanning electron microscopy (SEM), transmission electron microscopy (TEM), Fourier transform IR (FTIR), and thermogravimetric analysis (TGA), and the formation mechanism was deeply studied. In comparison with beta-Ni(OH)(2) microrod and particle electrodes, beta-Ni(OH)(2) microtube electrode has the highest discharge capacity in alkaline battery, indicating the potential applications of the microtubes with the hierarchical structures in alkaline Ni-based batteries, supercapacitor, and catalytic areas.

引用

页码：2157 / 2162

页数：6

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