Preparation and Electrochemical Properties of Ordered Mesoporous C/NiO Composites

被引：7

作者：

Wang Tao ^{[1
]}

He Jian-Ping ^{[1
]}

Zhang Chuan-Xiang ^{[1
]}

Zhou Jian-Hua ^{[1
]}

Guo Yun-Xia ^{[1
]}

Chen Xiu ^{[1
]}

Di Zhi-Yong ^{[1
]}

Sun Dun ^{[1
]}

Wang Dao-Jun ^{[1
]}

机构：

[1] Nanjing Univ Aeronaut & Astronaut, Coll Mat Sci & Technol, Nanjing 210016, Peoples R China

来源：

ACTA PHYSICO-CHIMICA SINICA | 2008年 / 24卷 / 12期

关键词：

Ordered; Mesoporous C/NiO; Sol-gel method; Specific capacitance;

D O I：

10.3866/PKU.WHXB20081228

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：

Highly ordered mesoporous C/NiO composites were synthesized via the sol-gel process using an amphiphilic triblock copolymer F127 (M-w=12600, PEO106PPO70PEO106) as a template, Ni(OAc)(2) as nickel source and resols as an organic precursor. X-ray diffraction (XRD), transmission electron microscopy (TEM), and nitrogen adsorption were used to characterize the structure. Cyclic voltammetry (CV) was used to test the electrochemical properties of the samples. The results showed that the backbone of the mesoporous structures consisted of NiO nanocrystallites and carbon. The C/NiO composites have a highly ordered mesostructure. The presence of NiO nanocrystallites was expected to improve the capacitance properties of the composite. At a C/NiO ratio of 4:1 (molar ratio of phenol to nickel acetate) the composite had a large specific capacitance of 4.44.1 F.g(-1) and the ordered mesostructure remained intact. Ordered mesoporous C/NiO composites thus are promising for applications.

引用

页码：2314 / 2320

页数：7

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