The Capacitive Behaviors ofManganese Dioxide Thin-Film Electrochemical Capacitor Prototypes
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...
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| Format: | Article |
| Language: | English |
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Hindawi Publishing Corporation
2011
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| Online Access: | http://ir.unimas.my/id/eprint/9904/ http://ir.unimas.my/id/eprint/9904/1/The%20Capacitive%20Behaviors%20of%20Manganese%20Dioxide%20Thin-Film%20Electrochemical%20Capacitor%20Prototypes%20%28abstract%29.pdf |
| _version_ | 1848836662593847296 |
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| author | Pang, Suh Cem Wee, Boon Hong Chin, Suk Fun |
| author_facet | Pang, Suh Cem Wee, Boon Hong Chin, Suk Fun |
| author_sort | Pang, Suh Cem |
| building | UNIMAS Institutional Repository |
| collection | Online Access |
| description | 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 ofMnO2 thin-film electrodes fromdensely 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 0.2MNa2SO4 aqueous electrolyte. Being environmentally benign and cheap,MnO2 thinfilm electrochemical capacitors have high potential utility as pulsed power sources, as well as load-leveling functions in various consumer electronic devices. |
| first_indexed | 2025-11-15T06:27:20Z |
| format | Article |
| id | unimas-9904 |
| institution | Universiti Malaysia Sarawak |
| institution_category | Local University |
| language | English |
| last_indexed | 2025-11-15T06:27:20Z |
| publishDate | 2011 |
| publisher | Hindawi Publishing Corporation |
| recordtype | eprints |
| repository_type | Digital Repository |
| spelling | unimas-99042015-12-03T07:47:58Z http://ir.unimas.my/id/eprint/9904/ The Capacitive Behaviors ofManganese Dioxide Thin-Film Electrochemical Capacitor Prototypes Pang, Suh Cem Wee, Boon Hong Chin, Suk Fun QD Chemistry 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 ofMnO2 thin-film electrodes fromdensely 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 0.2MNa2SO4 aqueous electrolyte. Being environmentally benign and cheap,MnO2 thinfilm electrochemical capacitors have high potential utility as pulsed power sources, as well as load-leveling functions in various consumer electronic devices. Hindawi Publishing Corporation 2011 Article NonPeerReviewed text en http://ir.unimas.my/id/eprint/9904/1/The%20Capacitive%20Behaviors%20of%20Manganese%20Dioxide%20Thin-Film%20Electrochemical%20Capacitor%20Prototypes%20%28abstract%29.pdf Pang, Suh Cem and Wee, Boon Hong and Chin, Suk Fun (2011) The Capacitive Behaviors ofManganese Dioxide Thin-Film Electrochemical Capacitor Prototypes. International Journal of Electrochemistry. pp. 1-10. ISSN 2090-3537 http://www.researchgate.net/publication/258402620_The_Capacitive_Behaviors_of_Manganese_Dioxide_Thin-Film_Electrochemical_Capacitor_Prototypes doi:10.4061/2011/397685 |
| spellingShingle | QD Chemistry Pang, Suh Cem Wee, Boon Hong Chin, Suk Fun The Capacitive Behaviors ofManganese Dioxide Thin-Film Electrochemical Capacitor Prototypes |
| title | The Capacitive Behaviors ofManganese Dioxide Thin-Film
Electrochemical Capacitor Prototypes |
| title_full | The Capacitive Behaviors ofManganese Dioxide Thin-Film
Electrochemical Capacitor Prototypes |
| title_fullStr | The Capacitive Behaviors ofManganese Dioxide Thin-Film
Electrochemical Capacitor Prototypes |
| title_full_unstemmed | The Capacitive Behaviors ofManganese Dioxide Thin-Film
Electrochemical Capacitor Prototypes |
| title_short | The Capacitive Behaviors ofManganese Dioxide Thin-Film
Electrochemical Capacitor Prototypes |
| title_sort | capacitive behaviors ofmanganese dioxide thin-film
electrochemical capacitor prototypes |
| topic | QD Chemistry |
| url | http://ir.unimas.my/id/eprint/9904/ http://ir.unimas.my/id/eprint/9904/ http://ir.unimas.my/id/eprint/9904/ http://ir.unimas.my/id/eprint/9904/1/The%20Capacitive%20Behaviors%20of%20Manganese%20Dioxide%20Thin-Film%20Electrochemical%20Capacitor%20Prototypes%20%28abstract%29.pdf |