Hydrothermal Prepared α-MnO2 Nanowire and its Supercapacitor Electrochemical Performances

Yang Li; Jing Li; Hua Qing Xie

doi:10.4028/www.scientific.net/AMR.953-954.1040

Paper Titles

Compatibilities between Lithium Bis(Oxalate)Borate-Based Electrolyte and LiFePO₄, LiMn₂O₄ or LiNi_0.5Mn_1.5O₄ Cathodes for Lithium-Ion Batteries
p.1022

Determination of Char-CO₂ Gasification Rate through Reaction Product
p.1026

Electrochemical Performances of the Binary Solvent Electrolytes with Lithium Bis(Oxalate)Borate
p.1031

Experimental Study on Carbonization of Low-Rank Pulverized Coal with High Temperature Heat Pipe
p.1035

Hydrothermal Prepared α-MnO₂ Nanowire and its Supercapacitor Electrochemical Performances
p.1040

Influence of Hf and H₂O₂ on Morphology of Silicon Formed by Ag Assisted Chemical Etching
p.1045

Investigation of Lithium Difluoro (Sulfato) Borate as a Salt of Electrolyte for High-Temperature Lithium-Ion Batteries
p.1049

Mg-Al Hydrotalcite/γ-Al₂O₃ as Fixed-Bed Catalyst in Biodiesel Production
p.1053

Nano-Sized LiNi_0.5Mn_1.5O₄ Spines Prepared by a Novel Sol-Gel Method
p.1063

HomeAdvanced Materials ResearchAdvanced Materials Research Vols. 953-954Hydrothermal Prepared α-MnO2 Nanowire and its...

Hydrothermal Prepared α-MnO₂ Nanowire and its Supercapacitor Electrochemical Performances

Abstract:

α-MnO₂ nanowire was prepared by hydrothermal method. The structure of as-prepared manganese oxide demonstrated tetragonal crystalline in X-ray diffraction pattern. Scan electron microscopy (SEM) and Transmission electron microscopy (TEM) revealed the nanowire morphology of as-prepared α-MnO₂. The band gap of α-MnO₂ was estimated at about 2.06 eV via UV-vis spectrum. As the electrode active material for supercapacitor, the electrochemical specific capacitance of α-MnO₂ nanowire achieved 156.5 F/g, which possessed typical capacitive behaviors and good cycling stabilities. Based on the preferable electrochemical performances, as-synthesized α-MnO₂ nanowire may be a potential alternative as electrode material for supercapacitor.

You might also be interested in these eBooks

View Preview

View Preview

Info:

Periodical:

Advanced Materials Research (Volumes 953-954)

Pages:

1040-1044

DOI:

https://doi.org/10.4028/www.scientific.net/AMR.953-954.1040

Citation:

Cite this paper

Online since:

June 2014

Authors:

Yang Li, Jing Li, Hua Qing Xie

Keywords:

Energy Storage and Conversion, Nanowire, Super-Capacitor (SC), α-MnO₂

Export:

RIS, BibTeX

Price:

Permissions CCC:

Request Permissions

Permissions PLS:

Request Permissions

Сopyright:

Citation:

References

[1] Dj.M. Maric, P.F. Meier and S.K. Estreicher: Mater. Sci. Forum Vol. 83-87 (1992), p.119.

Google Scholar

[2] M.A. Green: High Efficiency Silicon Solar Cells (Trans Tech Publications, Switzerland 1987).

Google Scholar

[3] Y. Mishing, in: Diffusion Processes in Advanced Technological Materials, edtied by D. Gupta Noyes Publications/William Andrew Publising, Norwich, NY (2004), in press.

Google Scholar

[4] G. Henkelman, G. Johannesson and H. Jónsson, in: Theoretical Methods in Condencsed Phase Chemistry, edited by S.D. Schwartz, volume 5 of Progress in Theoretical Chemistry and Physics, chapter, 10, Kluwer Academic Publishers (2000).

Google Scholar

[5] R.J. Ong, J.T. Dawley and P.G. Clem: submitted to Journal of Materials Research (2003).

Google Scholar

[6] P.G. Clem, M. Rodriguez, J.A. Voigt and C.S. Ashley, U.S. Patent 6, 231, 666. (2001).

Google Scholar

[7] Information on http: /www. weld. labs. gov. cn.

Google Scholar