The Capacitive Behaviors of Manganese Dioxide Thin-Film Electrochemical Capacitor Prototypes
Joint Authors
Pang, Suh Cem
Wee, Boon Hong
Chin, Suk Fun
Source
International Journal of Electrochemistry
Issue
Vol. 2011, Issue 2011 (31 Dec. 2011), pp.1-10, 10 p.
Publisher
Hindawi Publishing Corporation
Publication Date
2011-10-23
Country of Publication
Egypt
No. of Pages
10
Main Subjects
Abstract EN
We have documented the fabrication of manganese dioxide (MnO2) thin-film electrochemical capacitor (EC) prototypes with dual-planar electrode configuration.
These EC prototypes exhibited good capacitive behaviors in mild Na2SO4 aqueous electrolyte.
Enhanced capacitive behaviors of EC prototypes were observed upon prolonged voltammetric cycling which could be associated with microstructural transformation of MnO2 thin-film electrodes from densely packed plate-like to irregular petal-like surface morphology.
Effects of voltammetric scan rates, prolonged voltammetric cycling, electrolyte composition, and electrolyte concentration on the surface morphology of MnO2 thin-film electrodes, and associated capacitive behaviors of MnO2 thin-film EC prototypes were investigated by cyclic voltammetry (CV), electrochemical impedance spectroscopy (EIS), and galvanostatic charge/discharge (GCD) techniques.
Results of both CV and EIS indicated that thin-film MnO2 EC prototypes exhibited the highest specific capacitance of 327 F/g in 0.2 M Na2SO4 aqueous electrolyte.
Being environmentally benign and cheap, MnO2 thin-film electrochemical capacitors have high potential utility as pulsed power sources, as well as load-leveling functions in various consumer electronic devices.
American Psychological Association (APA)
Pang, Suh Cem& Wee, Boon Hong& Chin, Suk Fun. 2011. The Capacitive Behaviors of Manganese Dioxide Thin-Film Electrochemical Capacitor Prototypes. International Journal of Electrochemistry،Vol. 2011, no. 2011, pp.1-10.
https://search.emarefa.net/detail/BIM-468955
Modern Language Association (MLA)
Pang, Suh Cem…[et al.]. The Capacitive Behaviors of Manganese Dioxide Thin-Film Electrochemical Capacitor Prototypes. International Journal of Electrochemistry No. 2011 (2011), pp.1-10.
https://search.emarefa.net/detail/BIM-468955
American Medical Association (AMA)
Pang, Suh Cem& Wee, Boon Hong& Chin, Suk Fun. The Capacitive Behaviors of Manganese Dioxide Thin-Film Electrochemical Capacitor Prototypes. International Journal of Electrochemistry. 2011. Vol. 2011, no. 2011, pp.1-10.
https://search.emarefa.net/detail/BIM-468955
Data Type
Journal Articles
Language
English
Notes
Includes bibliographical references
Record ID
BIM-468955