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Synthesis and Reactivity in Inorganic, Metal-Organic, and Nano-Metal Chemistry Volume 43, 2013 - Issue 3
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Original Articles

Comparative Studies of NiO Nanoparticles Prepared From Different Precursors for Electrochemical Capacitor

Yong Yang Key Laboratory for Palygorskite Science and Applied Technology of Jiangsu Province, Department of Chemical Engineering, Huaiyin Institute of Technology, Huaian, P. R. China
,
Jingye He Key Laboratory for Palygorskite Science and Applied Technology of Jiangsu Province, Department of Chemical Engineering, Huaiyin Institute of Technology, Huaian, P. R. China
,
Yaxin Gu Key Laboratory for Palygorskite Science and Applied Technology of Jiangsu Province, Department of Chemical Engineering, Huaiyin Institute of Technology, Huaian, P. R. China
,
Denghao Li Key Laboratory for Palygorskite Science and Applied Technology of Jiangsu Province, Department of Chemical Engineering, Huaiyin Institute of Technology, Huaian, P. R. China
,
Liyao Zhu The Fourth Hospital of Huaian, Huaian, P. R. China
,
Jin Chen Key Laboratory for Palygorskite Science and Applied Technology of Jiangsu Province, Department of Chemical Engineering, Huaiyin Institute of Technology, Huaian, P. R. China
,
Xiangqian Li Key Laboratory for Palygorskite Science and Applied Technology of Jiangsu Province, Department of Chemical Engineering, Huaiyin Institute of Technology, Huaian, P. R. China
&
Liangdong Feng Key Laboratory for Palygorskite Science and Applied Technology of Jiangsu Province, Department of Chemical Engineering, Huaiyin Institute of Technology, Huaian, P. R. China
 show all
Pages 296-304 | Received 23 Nov 2011, Accepted 13 Oct 2012, Published online: 25 Jan 2013
 
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Abstract

Using EPE as templates and hexamethylenetetramine as hydrolysis agent, precursors of Ni(OH)2 and Ni(HCO3)2 are controllably synthesized through adjusting the heating temperature and time. After calcined at 500°C, NiO nanoparticles have been fabricated from the precursors. The mesoporous NiO prepared from Ni(HCO3)2 had larger BET surface area than the microporous NiO prepared from Ni(OH)2. Both the NiO have good reversibility and capacitance capacity mainly resulted from pseudocapacitive capacitance. At the discharge current density of 500 mA g−1, the specific capacitance values are 736 and 533 F g−1 for the NiO materials calcined from Ni(HCO3)2 and Ni(OH)2, respectively.

Acknowledgments

This work is supported by the National Natural Science Foundation of China (51174096 and 20605011) and the “Qing-Lan” Project of Jiangsu Province.

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