학술논문
A facile route to large-scale synthesis MoO2 and MoO3 as electrode materials for high-performance supercapacitors.
Document Type
Article
Author
Source
Subject
*MICROSTRUCTURE
*GRAIN size
*AMMONIUM
*ENERGY storage
*ELECTRIC capacity
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Language
ISSN
1862-6300
Abstract
MoO3 and MoO2 materials have been successfully synthesized by thermal decomposition of ammonium paramolybdate in air and a sealed quartz tube, respectively. The microstructure of as-synthesized MoO3 is composed of irregular lamellar plates with a plate thickness around 100 nm and MoO2 has the larger grain size with lamellar plates connected with each other. A maximum specific capacitance of 318 F/g at 0.5 A/g is obtained for MoO2 prepared in a closed environment. On the other hand, the sample MoO3 exhibits excellent rate capacity with specific capacitances of 218, 209, 196, 188, 176, and 160 F/g at current densities of 0.5, 1, 2, 3, 4, and 5 A/g, respectively. These results pave the way to consider MoO3 and MoO2 as prospective materials for energy-storage applications. [ABSTRACT FROM AUTHOR]