Potentiostatic and Galvanostatic Electrodeposition of Manganese Oxide for Supercapacitor Application: A Comparison Study

The structural and electrochemical properties of manganese oxide (MnO2) electrodeposited by potentiostatic and galvanostatic conditions are studied. X‒ray diffraction analyses confirm identical MnO2 phase (ramsdellite) are deposited under potentiostatic and galvanostatic conditions. Under comparable...

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Main Authors:	Ali, Gomaa A. M., M. M., Yusoff, Yun, Hau Ng, Hong, Ngee Lim, K. F., Chong
Format:	Article
Language:	English
Published:	Elsevier Ltd 2015
Subjects:	Q Science (General)
Online Access:	http://umpir.ump.edu.my/id/eprint/9544/ http://umpir.ump.edu.my/id/eprint/9544/ http://umpir.ump.edu.my/id/eprint/9544/ http://umpir.ump.edu.my/id/eprint/9544/7/Potentiostatic%20and%20galvanostatic%20electrodeposition%20of%20manganese%20oxide%20for%20supercapacitor%20application.pdf

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spelling	ump-95442018-07-26T03:32:42Z http://umpir.ump.edu.my/id/eprint/9544/ Potentiostatic and Galvanostatic Electrodeposition of Manganese Oxide for Supercapacitor Application: A Comparison Study Ali, Gomaa A. M. M. M., Yusoff Yun, Hau Ng Hong, Ngee Lim K. F., Chong Q Science (General) The structural and electrochemical properties of manganese oxide (MnO2) electrodeposited by potentiostatic and galvanostatic conditions are studied. X‒ray diffraction analyses confirm identical MnO2 phase (ramsdellite) are deposited under potentiostatic and galvanostatic conditions. Under comparable current density during electrodeposition, MnO2 deposited by galvanostatic condition shows smaller crystallite size, less compact layered structure, higher surface area and wider band gap, in comparison to the potentiostatic deposition. The MnO2 morphology difference under different electrodeposition conditions contributes to different capacitive behaviors. The lower compactness of MnO2 deposited galvanostatically renders facile ions diffusion, leading to higher specific capacitance with low equivalent series resistance. The findings suggest galvanostatic electrodeposition is suitable to produce MnO2 nanostructure for supercapacitor application. Elsevier Ltd 2015 Article PeerReviewed application/pdf en http://umpir.ump.edu.my/id/eprint/9544/7/Potentiostatic%20and%20galvanostatic%20electrodeposition%20of%20manganese%20oxide%20for%20supercapacitor%20application.pdf Ali, Gomaa A. M. and M. M., Yusoff and Yun, Hau Ng and Hong, Ngee Lim and K. F., Chong (2015) Potentiostatic and Galvanostatic Electrodeposition of Manganese Oxide for Supercapacitor Application: A Comparison Study. Current Applied Physics, 15 (10). pp. 1143-1147. ISSN 1567-1739 http://dx.doi.org/10.1016/j.cap.2015.06.022 doi: 10.1016/j.cap.2015.06.022
repository_type	Digital Repository
institution_category	Local University
institution	Universiti Malaysia Pahang
building	UMP Institutional Repository
collection	Online Access
language	English
topic	Q Science (General)
spellingShingle	Q Science (General) Ali, Gomaa A. M. M. M., Yusoff Yun, Hau Ng Hong, Ngee Lim K. F., Chong Potentiostatic and Galvanostatic Electrodeposition of Manganese Oxide for Supercapacitor Application: A Comparison Study
description	The structural and electrochemical properties of manganese oxide (MnO2) electrodeposited by potentiostatic and galvanostatic conditions are studied. X‒ray diffraction analyses confirm identical MnO2 phase (ramsdellite) are deposited under potentiostatic and galvanostatic conditions. Under comparable current density during electrodeposition, MnO2 deposited by galvanostatic condition shows smaller crystallite size, less compact layered structure, higher surface area and wider band gap, in comparison to the potentiostatic deposition. The MnO2 morphology difference under different electrodeposition conditions contributes to different capacitive behaviors. The lower compactness of MnO2 deposited galvanostatically renders facile ions diffusion, leading to higher specific capacitance with low equivalent series resistance. The findings suggest galvanostatic electrodeposition is suitable to produce MnO2 nanostructure for supercapacitor application.
format	Article
author	Ali, Gomaa A. M. M. M., Yusoff Yun, Hau Ng Hong, Ngee Lim K. F., Chong
author_facet	Ali, Gomaa A. M. M. M., Yusoff Yun, Hau Ng Hong, Ngee Lim K. F., Chong
author_sort	Ali, Gomaa A. M.
title	Potentiostatic and Galvanostatic Electrodeposition of Manganese Oxide for Supercapacitor Application: A Comparison Study
title_short	Potentiostatic and Galvanostatic Electrodeposition of Manganese Oxide for Supercapacitor Application: A Comparison Study
title_full	Potentiostatic and Galvanostatic Electrodeposition of Manganese Oxide for Supercapacitor Application: A Comparison Study
title_fullStr	Potentiostatic and Galvanostatic Electrodeposition of Manganese Oxide for Supercapacitor Application: A Comparison Study
title_full_unstemmed	Potentiostatic and Galvanostatic Electrodeposition of Manganese Oxide for Supercapacitor Application: A Comparison Study
title_sort	potentiostatic and galvanostatic electrodeposition of manganese oxide for supercapacitor application: a comparison study
publisher	Elsevier Ltd
publishDate	2015
url	http://umpir.ump.edu.my/id/eprint/9544/ http://umpir.ump.edu.my/id/eprint/9544/ http://umpir.ump.edu.my/id/eprint/9544/ http://umpir.ump.edu.my/id/eprint/9544/7/Potentiostatic%20and%20galvanostatic%20electrodeposition%20of%20manganese%20oxide%20for%20supercapacitor%20application.pdf
first_indexed	2023-09-18T22:08:13Z
last_indexed	2023-09-18T22:08:13Z
_version_	1777414851321135104

Potentiostatic and Galvanostatic Electrodeposition of Manganese Oxide for Supercapacitor Application: A Comparison Study

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