Facile template-free synthesis of ultralayered mesoporous nickel cobaltite nanowires towards high-performance electrochemical capacitors

被引：246

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, Anhui Key Lab Met Mat & Proc, Sch Mat Sci & Engn, Maanshan 243002, Peoples R China

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

来源：

JOURNAL OF MATERIALS CHEMISTRY | 2012年 / 22卷 / 31期

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：

PROMISING ELECTRODE; NICO2O4; SURFACE; OXIDE; CO3O4; TEMPERATURE; COMPOSITES; NANOSHEETS; LI;

D O I：

10.1039/c2jm32351f

中图分类号：

O64 [物理化学（理论化学）、化学物理学];

学科分类号：

070304 ; 081704 ;

摘要：

In this work, we proposed a facile and scalable template-free strategy to synthesize one-dimensional (1D) ultralayered mesoporous nickel cobaltite (NiCo2O4) nanowires (NWs), which are constructed from lots of quasi-single-crystalline NiCo2O4 nanosheet building blocks. The unique ultralayered mesoporous nanowire electrode exhibited high specific capacitance (401 F g(-1) at 1 A g(-1)), good rate capability (75% capacity retention at 8 A g(-1)) and excellent cycling stability (only ca. 10% loss after 5000 cycles), exhibiting its great potential application in high-performance electrochemical capacitors as an advanced electrode material. The desirable capacitive performance is mainly attributed to its binary electroactive sites of Co and Ni species, and its intriguing ultralayered mesoporous NWs features.

引用

页码：16084 / 16090

页数：7

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