Preparation of Ordered Mesoporous Carbon/NiCo2O4 Electrode and Its Electrochemical Capacitive Behavior

被引：10

作者：

Che Qian ^{[1
]}

Zhang Fang ^{[1
]}

Zhang Xiao-Gang ^{[1
]}

Lu Xiang-Jun ^{[1
]}

Ding Bing ^{[1
]}

Zhu Jia-Jia ^{[1
]}

机构：

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

来源：

ACTA PHYSICO-CHIMICA SINICA | 2012年 / 28卷 / 04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：

Supercapacitor; Ordered mesoporous carbon; NiCo2O4; Co-precipitation method; ASSISTED HYDROTHERMAL SYNTHESIS; ENERGY-STORAGE; PERFORMANCE; SUPERCAPACITOR; CARBON; OXIDE;

D O I：

10.3866/PKU.WHXB201202074

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：

OMC/NiCo2O4 composite was prepared by co-precipitation with ordered mesoporous carbon (OMC) as a support. The crystalline structure and morphology of the composite were investigated by X-ray diffraction (XRD), Fourier-transform infrared (FT-IR) spectroscopy, and transmission electron microscopy (TEM). TEM images showed that NiCo2O4 was uniformly coated on the OMC. Cyclic voltammetry and galvanostatic charge-discharge were used to investigate the electrochemical performance of the OMC/NiCo2O4 composite. The specific capacitances of the OMC/NiCo2O4 composite with a mass fraction of 40% NiCo2O4 were 577.0 F . g(-1) at a current density of 1 A . g(-1) and 470.8 F . g(-1) at 8 A . g(-1). The specific capacitance remains at 508.4 F . g(-1) after 2000 cycles at a current density of 2 A . g(-1), with a capacitance retention of 92.7%.

引用

页码：837 / 842

页数：6

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