Enhancement of electrochemical performance based on symmetrical poly-(3,4-ethylenedioxythiophene) coated polyvinyl alcohol/graphene oxide/manganese oxide microfiber for supercapacitor
In this study, a symmetrical poly (3, 4-ethylenedioxythiophene) (PEDOT) coated on poly (vinyl alcohol) (PVA)-graphene oxide (GO)-manganese oxide (MnO2) microfibers (PVA-GO-MnO2/PEDOT) supercapacitor was successfully prepared using a combination of two facile techniques; electrospinning and electropo...
| Main Authors: | , , |
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| Format: | Article |
| Language: | English English |
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Elsevier
2018
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| Online Access: | http://psasir.upm.edu.my/id/eprint/72581/1/Enhancement%20of%20electrochemical%20performance%20.pdf http://psasir.upm.edu.my/id/eprint/72581/2/Enhancement%20of%20electrochemical%20performance%20.pdf |
| _version_ | 1825950111003312128 |
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| author | Mohd Abdah, Muhammad Amirul Aizat Abdul Rahman, Norizah Sulaiman, Yusran |
| author_facet | Mohd Abdah, Muhammad Amirul Aizat Abdul Rahman, Norizah Sulaiman, Yusran |
| author_sort | Mohd Abdah, Muhammad Amirul Aizat |
| collection | UPM |
| description | In this study, a symmetrical poly (3, 4-ethylenedioxythiophene) (PEDOT) coated on poly (vinyl alcohol) (PVA)-graphene oxide (GO)-manganese oxide (MnO2) microfibers (PVA-GO-MnO2/PEDOT) supercapacitor was successfully prepared using a combination of two facile techniques; electrospinning and electropolymerisation. The FESEM analysis revealed the uniform distribution of manganese oxide nanoparticles on the surface of cross-linking PVA-GO microfibers and a cauliflower-like morphology was observed upon deposition of PEDOT on the surface of PVA-GO-MnO2 microfibers. The chemical composition of PVA-GO-MnO2/PEDOT and oxidation state of manganese were characterised using Raman and X-Ray photoelectron spectroscopies. The inclusion of MnO2 and PEDOT in the microcomposite proved the enhancement of specific capacitance where PVA-GO-MnO2/PEDOT exhibited a specific capacitance of 144.66 F/g compared to PVA-MnO2/PEDOT (107.22 F/g), PVA-GO/PEDOT (94.73 F/g) and PEDOT (62.86 F/g). A wide potential window (1.8 V) was achieved for PVA-GO-MnO2/PEDOT with an excellent capacitance retention of 91.18% suggesting an ideal capacitive behaviour and good cycling stability. PVA-GO-MnO2/PEDOT microcomposite also showed an improved specific energy and specific power with small equivalent series resistance (34.5 Ω) and charge transfer resistance (0.62 Ω). This demonstrated that symmetric electrode of PVA-GO-MnO2/PEDOT can offer a great promise in producing high-performance supercapacitors. |
| first_indexed | 2024-03-06T10:09:37Z |
| format | Article |
| id | upm.eprints-72581 |
| institution | Universiti Putra Malaysia |
| language | English English |
| last_indexed | 2024-03-06T10:09:37Z |
| publishDate | 2018 |
| publisher | Elsevier |
| record_format | dspace |
| spelling | upm.eprints-725812020-11-05T02:35:29Z http://psasir.upm.edu.my/id/eprint/72581/ Enhancement of electrochemical performance based on symmetrical poly-(3,4-ethylenedioxythiophene) coated polyvinyl alcohol/graphene oxide/manganese oxide microfiber for supercapacitor Mohd Abdah, Muhammad Amirul Aizat Abdul Rahman, Norizah Sulaiman, Yusran In this study, a symmetrical poly (3, 4-ethylenedioxythiophene) (PEDOT) coated on poly (vinyl alcohol) (PVA)-graphene oxide (GO)-manganese oxide (MnO2) microfibers (PVA-GO-MnO2/PEDOT) supercapacitor was successfully prepared using a combination of two facile techniques; electrospinning and electropolymerisation. The FESEM analysis revealed the uniform distribution of manganese oxide nanoparticles on the surface of cross-linking PVA-GO microfibers and a cauliflower-like morphology was observed upon deposition of PEDOT on the surface of PVA-GO-MnO2 microfibers. The chemical composition of PVA-GO-MnO2/PEDOT and oxidation state of manganese were characterised using Raman and X-Ray photoelectron spectroscopies. The inclusion of MnO2 and PEDOT in the microcomposite proved the enhancement of specific capacitance where PVA-GO-MnO2/PEDOT exhibited a specific capacitance of 144.66 F/g compared to PVA-MnO2/PEDOT (107.22 F/g), PVA-GO/PEDOT (94.73 F/g) and PEDOT (62.86 F/g). A wide potential window (1.8 V) was achieved for PVA-GO-MnO2/PEDOT with an excellent capacitance retention of 91.18% suggesting an ideal capacitive behaviour and good cycling stability. PVA-GO-MnO2/PEDOT microcomposite also showed an improved specific energy and specific power with small equivalent series resistance (34.5 Ω) and charge transfer resistance (0.62 Ω). This demonstrated that symmetric electrode of PVA-GO-MnO2/PEDOT can offer a great promise in producing high-performance supercapacitors. Elsevier 2018-01 Article PeerReviewed text en http://psasir.upm.edu.my/id/eprint/72581/1/Enhancement%20of%20electrochemical%20performance%20.pdf text en http://psasir.upm.edu.my/id/eprint/72581/2/Enhancement%20of%20electrochemical%20performance%20.pdf Mohd Abdah, Muhammad Amirul Aizat and Abdul Rahman, Norizah and Sulaiman, Yusran (2018) Enhancement of electrochemical performance based on symmetrical poly-(3,4-ethylenedioxythiophene) coated polyvinyl alcohol/graphene oxide/manganese oxide microfiber for supercapacitor. Electrochimica Acta, 259. 466 - 473. ISSN 0013-4686 https://www.sciencedirect.com/science/article/pii/S0013468617323563 10.1016/j.electacta.2017.11.005 |
| spellingShingle | Mohd Abdah, Muhammad Amirul Aizat Abdul Rahman, Norizah Sulaiman, Yusran Enhancement of electrochemical performance based on symmetrical poly-(3,4-ethylenedioxythiophene) coated polyvinyl alcohol/graphene oxide/manganese oxide microfiber for supercapacitor |
| title | Enhancement of electrochemical performance based on symmetrical poly-(3,4-ethylenedioxythiophene) coated polyvinyl alcohol/graphene oxide/manganese oxide microfiber for supercapacitor |
| title_full | Enhancement of electrochemical performance based on symmetrical poly-(3,4-ethylenedioxythiophene) coated polyvinyl alcohol/graphene oxide/manganese oxide microfiber for supercapacitor |
| title_fullStr | Enhancement of electrochemical performance based on symmetrical poly-(3,4-ethylenedioxythiophene) coated polyvinyl alcohol/graphene oxide/manganese oxide microfiber for supercapacitor |
| title_full_unstemmed | Enhancement of electrochemical performance based on symmetrical poly-(3,4-ethylenedioxythiophene) coated polyvinyl alcohol/graphene oxide/manganese oxide microfiber for supercapacitor |
| title_short | Enhancement of electrochemical performance based on symmetrical poly-(3,4-ethylenedioxythiophene) coated polyvinyl alcohol/graphene oxide/manganese oxide microfiber for supercapacitor |
| title_sort | enhancement of electrochemical performance based on symmetrical poly 3 4 ethylenedioxythiophene coated polyvinyl alcohol graphene oxide manganese oxide microfiber for supercapacitor |
| url | http://psasir.upm.edu.my/id/eprint/72581/1/Enhancement%20of%20electrochemical%20performance%20.pdf http://psasir.upm.edu.my/id/eprint/72581/2/Enhancement%20of%20electrochemical%20performance%20.pdf |
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