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Proceedings Paper

Nanograins-grafted nanorods of MoO2/carbon composite for supercapacitor application
Author(s): Rixiong Chen; Shuhui Yu; Rong Sun; Yubao Zhao
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Paper Abstract

Metallic oxide/carbon composite has been extensively studied and widely used for energy storage in supercapacitor and lithium ion battery. In this paper, we synthesized nanograins-grafted nanorods of MoO2/carbon composites through a facile chemical reaction process without any template. Well crystallized MoO2 with monoclinic structure was identified in the XRD pattern. MoO2 nanograins with the size of 30-50nm were grown on the carbon nanorods, which were a few microns in length. Coupling of the rods-like carbon with good conductivity and the well distributed redox-active MoO2 leads to improved electrochemical performance. The cyclic voltammogram measurement shows that the as-prepared nanocomposites exhibit a broad potential window of 1.3V, which is extremely desired for supercapacitor application. The symmetrical supercapacitor of the nanograins-grafted nanorods of MoO2/carbon composites can work even at a high electric potential of 1.2V in aqueous electrolyte which seems impossible for many other metallic oxide and carbon composites.

Paper Details

Date Published: 3 April 2012
PDF: 7 pages
Proc. SPIE 8409, Third International Conference on Smart Materials and Nanotechnology in Engineering, 84090R (3 April 2012); doi: 10.1117/12.924042
Show Author Affiliations
Rixiong Chen, Shenzhen Institutes of Advanced Technology (China)
The Chinese Univ. of Hong Kong (Hong Kong, China)
Univ. of South China (China)
Shuhui Yu, Shenzhen Institutes of Advanced Technology (China)
The Chinese Univ. of Hong Kong (Hong Kong, China)
Rong Sun, Shenzhen Institutes of Advanced Technology (China)
The Chinese Univ. of Hong Kong (Hong Kong, China)
Yubao Zhao, Univ. of South China (China)


Published in SPIE Proceedings Vol. 8409:
Third International Conference on Smart Materials and Nanotechnology in Engineering
Jinsong Leng; Yoseph Bar-Cohen; In Lee; Jian Lu, Editor(s)

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