Nanograins-grafted nanorods of MoO2/carbon composite for supercapacitor application

Rixiong Chen; Shuhui Yu; Rong Sun; Yubao Zhao

doi:10.1117/12.924042

2 April 2012 Nanograins-grafted nanorods of MoO₂/carbon composite for supercapacitor application

Rixiong Chen, Shuhui Yu, Rong Sun, Yubao Zhao

Proceedings Volume 8409, Third International Conference on Smart Materials and Nanotechnology in Engineering; 84090R (2012) https://doi.org/10.1117/12.924042
Event: Third International Conference on Smart Materials and Nanotechnology in Engineering, 2011, Shenzhen, China

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.

Citation Download Citation

Rixiong Chen, Shuhui Yu, Rong Sun, and Yubao Zhao "Nanograins-grafted nanorods of MoO₂/carbon composite for supercapacitor application", Proc. SPIE 8409, Third International Conference on Smart Materials and Nanotechnology in Engineering, 84090R (2 April 2012); https://doi.org/10.1117/12.924042

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