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Modified electrodes based on MnO2 electrodeposited onto carbon felt: an evaluation toward supercapacitive applications

C. S. Santos, R. D. de Oliveira, Sudhagar Pitchaimuthu Orcid Logo, L. F. Marchesi, C. A. Pessôa

Chemical Papers, Volume: 74, Pages: 887 - 894

Swansea University Author: Sudhagar Pitchaimuthu Orcid Logo

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DOI (Published version): 10.1007/s11696-019-00920-9

Abstract

This work describes the electrochemical characterization toward supercapacitive properties of a modified electrode based on MnO2 electrodeposited onto carbon felt electrode (CFE/MnO2). Raman analysis confirmed the electrode modification and FEG-SEM images showed a 3D network structure with a homogen...

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Published in: Chemical Papers
ISSN: 2585-7290 1336-9075
Published: Springer Science and Business Media LLC 2020
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URI: https://cronfa.swan.ac.uk/Record/cronfa52661
first_indexed 2019-11-07T13:14:17Z
last_indexed 2023-01-11T14:29:54Z
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spelling 2022-11-16T13:43:32.4728345 v2 52661 2019-11-07 Modified electrodes based on MnO2 electrodeposited onto carbon felt: an evaluation toward supercapacitive applications 2fdbee02f4bfc5a1b174c8bd04afbd2b 0000-0001-9098-8806 Sudhagar Pitchaimuthu Sudhagar Pitchaimuthu true false 2019-11-07 This work describes the electrochemical characterization toward supercapacitive properties of a modified electrode based on MnO2 electrodeposited onto carbon felt electrode (CFE/MnO2). Raman analysis confirmed the electrode modification and FEG-SEM images showed a 3D network structure with a homogeneous deposit of the MnO2 film. The morphology of the electrodeposited film showed to be dependent on the electrodeposition applied potential and time. Cyclic voltammetry and galvanostatic charge/discharge curve results showed that the charge storage process is reversible and a combination of EDLC and pseudocapacitive behavior. Under optimized conditions (1.2 V and 600 s), the modified electrode presented a specific capacitance of 541 F g−1 in an applied current density of 0.2 A g−1, which was attributed to a favored accessibility of the electrolyte on the film porous due to morphological issues. Besides, the modified electrode revealed a good capacitance retention of 80% in an applied current density of 1.0 A g−1 after 1000 cycles. Journal Article Chemical Papers 74 887 894 Springer Science and Business Media LLC 2585-7290 1336-9075 Carbon felt, MnO2, Electrodeposition, Supercapacitive properties 1 3 2020 2020-03-01 10.1007/s11696-019-00920-9 http://dx.doi.org/10.1007/s11696-019-00920-9 COLLEGE NANME COLLEGE CODE Swansea University 2022-11-16T13:43:32.4728345 2019-11-07T10:24:50.2893883 Faculty of Science and Engineering School of Engineering and Applied Sciences - Chemistry C. S. Santos 1 R. D. de Oliveira 2 Sudhagar Pitchaimuthu 0000-0001-9098-8806 3 L. F. Marchesi 4 C. A. Pessôa 5
title Modified electrodes based on MnO2 electrodeposited onto carbon felt: an evaluation toward supercapacitive applications
spellingShingle Modified electrodes based on MnO2 electrodeposited onto carbon felt: an evaluation toward supercapacitive applications
Sudhagar Pitchaimuthu
title_short Modified electrodes based on MnO2 electrodeposited onto carbon felt: an evaluation toward supercapacitive applications
title_full Modified electrodes based on MnO2 electrodeposited onto carbon felt: an evaluation toward supercapacitive applications
title_fullStr Modified electrodes based on MnO2 electrodeposited onto carbon felt: an evaluation toward supercapacitive applications
title_full_unstemmed Modified electrodes based on MnO2 electrodeposited onto carbon felt: an evaluation toward supercapacitive applications
title_sort Modified electrodes based on MnO2 electrodeposited onto carbon felt: an evaluation toward supercapacitive applications
author_id_str_mv 2fdbee02f4bfc5a1b174c8bd04afbd2b
author_id_fullname_str_mv 2fdbee02f4bfc5a1b174c8bd04afbd2b_***_Sudhagar Pitchaimuthu
author Sudhagar Pitchaimuthu
author2 C. S. Santos
R. D. de Oliveira
Sudhagar Pitchaimuthu
L. F. Marchesi
C. A. Pessôa
format Journal article
container_title Chemical Papers
container_volume 74
container_start_page 887
publishDate 2020
institution Swansea University
issn 2585-7290
1336-9075
doi_str_mv 10.1007/s11696-019-00920-9
publisher Springer Science and Business Media LLC
college_str Faculty of Science and Engineering
hierarchytype
hierarchy_top_id facultyofscienceandengineering
hierarchy_top_title Faculty of Science and Engineering
hierarchy_parent_id facultyofscienceandengineering
hierarchy_parent_title Faculty of Science and Engineering
department_str School of Engineering and Applied Sciences - Chemistry{{{_:::_}}}Faculty of Science and Engineering{{{_:::_}}}School of Engineering and Applied Sciences - Chemistry
url http://dx.doi.org/10.1007/s11696-019-00920-9
document_store_str 0
active_str 0
description This work describes the electrochemical characterization toward supercapacitive properties of a modified electrode based on MnO2 electrodeposited onto carbon felt electrode (CFE/MnO2). Raman analysis confirmed the electrode modification and FEG-SEM images showed a 3D network structure with a homogeneous deposit of the MnO2 film. The morphology of the electrodeposited film showed to be dependent on the electrodeposition applied potential and time. Cyclic voltammetry and galvanostatic charge/discharge curve results showed that the charge storage process is reversible and a combination of EDLC and pseudocapacitive behavior. Under optimized conditions (1.2 V and 600 s), the modified electrode presented a specific capacitance of 541 F g−1 in an applied current density of 0.2 A g−1, which was attributed to a favored accessibility of the electrolyte on the film porous due to morphological issues. Besides, the modified electrode revealed a good capacitance retention of 80% in an applied current density of 1.0 A g−1 after 1000 cycles.
published_date 2020-03-01T16:03:43Z
_version_ 1850684865662418944
score 11.08899

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