Spontaneous Synthesis and Electrochemical Characterization of Nanostructured MnO2 on Nitrogen-Incorporated Carbon Nanotubes
Joint Authors
Hsu, Yu-Kuei
Chen, Kuei-Hsien
Chen, Ying-Chu
Chen, Li-Chyong
Lin, Yan-Gu
Source
International Journal of Electrochemistry
Issue
Vol. 2012, Issue 2012 (31 Dec. 2012), pp.1-10, 10 p.
Publisher
Hindawi Publishing Corporation
Publication Date
2012-01-19
Country of Publication
Egypt
No. of Pages
10
Main Subjects
Abstract EN
This paper investigated the layered manganese dioxide with hydrate (MnO2⋅xH2O) deposits onto nitrogen-containing carbon nanotube (CNxNTs) as a hierarchical electrode for an energy-storage device.
The dense and entangled CNxNTs were directly grown by microwave plasma-enhanced chemical vapor deposition (MPECVD) on a carbon cloth (CC), and subsequently used as a current collector.
By controlling the pH value of KMnO4 precursor solution, and incorporating nitrogen into CNTs as a reducing agent, the MnO2 thin layer was uniformly fabricated on the CNxNTs at room temperature by using a spontaneous reduction method.
The role of incorporation nitrogen is not only capable of creating active sites on the CNT surface, but can also donate electrons to reduce MnO4- to MnO2 spontaneously.
From the measurements of cyclic voltammograms and galvanostatic charge/discharge, MnO2/CNxNTs/CC composite electrodes illustrated excellent specific capacitance of 589.1 Fg-1.
The key factor for high performance could be attributed to the thin-layered MnO2 nanostructure, which resulted in the full utilization of MnO2 deposits.
Hence, the hierarchically porous MnO2/CNxNTs/CC electrodes exhibited excellent capacitive behavior for electrochemical capacitor application.
American Psychological Association (APA)
Chen, Ying-Chu& Hsu, Yu-Kuei& Lin, Yan-Gu& Chen, Li-Chyong& Chen, Kuei-Hsien. 2012. Spontaneous Synthesis and Electrochemical Characterization of Nanostructured MnO2 on Nitrogen-Incorporated Carbon Nanotubes. International Journal of Electrochemistry،Vol. 2012, no. 2012, pp.1-10.
https://search.emarefa.net/detail/BIM-474526
Modern Language Association (MLA)
Chen, Ying-Chu…[et al.]. Spontaneous Synthesis and Electrochemical Characterization of Nanostructured MnO2 on Nitrogen-Incorporated Carbon Nanotubes. International Journal of Electrochemistry No. 2012 (2012), pp.1-10.
https://search.emarefa.net/detail/BIM-474526
American Medical Association (AMA)
Chen, Ying-Chu& Hsu, Yu-Kuei& Lin, Yan-Gu& Chen, Li-Chyong& Chen, Kuei-Hsien. Spontaneous Synthesis and Electrochemical Characterization of Nanostructured MnO2 on Nitrogen-Incorporated Carbon Nanotubes. International Journal of Electrochemistry. 2012. Vol. 2012, no. 2012, pp.1-10.
https://search.emarefa.net/detail/BIM-474526
Data Type
Journal Articles
Language
English
Notes
Includes bibliographical references
Record ID
BIM-474526