Double-phase engineering of cobalt sulfide/oxyhydroxide on metal-organic frameworks derived iron carbide-integrated porous carbon nanofibers for asymmetric supercapacitors

Designing advanced functional electrode materials with a tunable structure and multiphase/composition comprising a single metal via a one-step synthesis process for supercapacitor applications is challenging. Here, a dual-phase cobalt sulfide/cobalt oxyhydroxide (Co1-xS/HCoO2) hexagonal nanostructur...

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Main Authors: Acharya, Debendra, Ko, Tae Hoon, Bhattarai, Roshan Mangal, Muthurasu, Alagan, Kim, Taewoo, Saidin, Syafiqah
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Published: Springer Science and Business Media B.V. 2022
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Online Access:http://eprints.utm.my/104877/
http://dx.doi.org/10.1007/s42114-023-00755-9
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spelling my.utm.1048772024-06-30T00:44:52Z http://eprints.utm.my/104877/ Double-phase engineering of cobalt sulfide/oxyhydroxide on metal-organic frameworks derived iron carbide-integrated porous carbon nanofibers for asymmetric supercapacitors Acharya, Debendra Ko, Tae Hoon Bhattarai, Roshan Mangal Muthurasu, Alagan Kim, Taewoo Saidin, Syafiqah TK Electrical engineering. Electronics Nuclear engineering Designing advanced functional electrode materials with a tunable structure and multiphase/composition comprising a single metal via a one-step synthesis process for supercapacitor applications is challenging. Here, a dual-phase cobalt sulfide/cobalt oxyhydroxide (Co1-xS/HCoO2) hexagonal nanostructure on iron metal-organic framework (MIL-88A) derived iron carbide (Fe3C) integrated porous carbon nanofibers (PCNFs) is synthesized using a wet-chemical curing technique. MIL-88A is integrated by a physical blending process into a PAN/PMMA polymer matrix during the PCNFs preparation process. The integrated MIL-88A-derived iron carbide nanomaterial contributes to improving the electrochemical performance of electrode materials by lowering the inherent resistance. The optimal (Co1-xS/HCoO2)-1@Fe3C/PCNFs electrode exhibits a high specific capacitance of 1724 F g-1 at 1 A g-1 with an improved rate capability and exceptional cycling stability with 89.8% retention even after 10,000 cycles. These excellent electrochemical capabilities are predominantly attributed to the double-phase hybrid composites, which have a variety of abundant sites, a large active surface area, rapid electron and ion transport capability, and strong structural stability. A Co1-xS/HCoO2-1@Fe3C/PCNFs//Fe2O3/NPC@PCNFs asymmetric supercapacitor (ASC) demonstrates excellent electrochemical energy storage behavior, with a maximum energy density of 65.68 Wh kg-1 at a power density of 752.7 W kg-1 and excellent cycling stability (90.3% capacitance retention after 10,000 charge-discharge cycles at a constant current density of 20 A g-1). These electrochemical results indicate that this ASC outperforms previously reported asymmetric supercapacitors, showing that the heterophasic electrode (Co1-xS/HCoO2)-1@Fe3C/PCNFs has the potential to be applied in supercapacitor devices. Springer Science and Business Media B.V. 2022 Article PeerReviewed Acharya, Debendra and Ko, Tae Hoon and Bhattarai, Roshan Mangal and Muthurasu, Alagan and Kim, Taewoo and Saidin, Syafiqah (2022) Double-phase engineering of cobalt sulfide/oxyhydroxide on metal-organic frameworks derived iron carbide-integrated porous carbon nanofibers for asymmetric supercapacitors. Advanced Composites and Hybrid Materials, 6 (5). pp. 1-16. ISSN 2522-0128 http://dx.doi.org/10.1007/s42114-023-00755-9 DOI : 10.1007/s42114-023-00755-9
institution Universiti Teknologi Malaysia
building UTM Library
collection Institutional Repository
continent Asia
country Malaysia
content_provider Universiti Teknologi Malaysia
content_source UTM Institutional Repository
url_provider http://eprints.utm.my/
topic TK Electrical engineering. Electronics Nuclear engineering
spellingShingle TK Electrical engineering. Electronics Nuclear engineering
Acharya, Debendra
Ko, Tae Hoon
Bhattarai, Roshan Mangal
Muthurasu, Alagan
Kim, Taewoo
Saidin, Syafiqah
Double-phase engineering of cobalt sulfide/oxyhydroxide on metal-organic frameworks derived iron carbide-integrated porous carbon nanofibers for asymmetric supercapacitors
description Designing advanced functional electrode materials with a tunable structure and multiphase/composition comprising a single metal via a one-step synthesis process for supercapacitor applications is challenging. Here, a dual-phase cobalt sulfide/cobalt oxyhydroxide (Co1-xS/HCoO2) hexagonal nanostructure on iron metal-organic framework (MIL-88A) derived iron carbide (Fe3C) integrated porous carbon nanofibers (PCNFs) is synthesized using a wet-chemical curing technique. MIL-88A is integrated by a physical blending process into a PAN/PMMA polymer matrix during the PCNFs preparation process. The integrated MIL-88A-derived iron carbide nanomaterial contributes to improving the electrochemical performance of electrode materials by lowering the inherent resistance. The optimal (Co1-xS/HCoO2)-1@Fe3C/PCNFs electrode exhibits a high specific capacitance of 1724 F g-1 at 1 A g-1 with an improved rate capability and exceptional cycling stability with 89.8% retention even after 10,000 cycles. These excellent electrochemical capabilities are predominantly attributed to the double-phase hybrid composites, which have a variety of abundant sites, a large active surface area, rapid electron and ion transport capability, and strong structural stability. A Co1-xS/HCoO2-1@Fe3C/PCNFs//Fe2O3/NPC@PCNFs asymmetric supercapacitor (ASC) demonstrates excellent electrochemical energy storage behavior, with a maximum energy density of 65.68 Wh kg-1 at a power density of 752.7 W kg-1 and excellent cycling stability (90.3% capacitance retention after 10,000 charge-discharge cycles at a constant current density of 20 A g-1). These electrochemical results indicate that this ASC outperforms previously reported asymmetric supercapacitors, showing that the heterophasic electrode (Co1-xS/HCoO2)-1@Fe3C/PCNFs has the potential to be applied in supercapacitor devices.
format Article
author Acharya, Debendra
Ko, Tae Hoon
Bhattarai, Roshan Mangal
Muthurasu, Alagan
Kim, Taewoo
Saidin, Syafiqah
author_facet Acharya, Debendra
Ko, Tae Hoon
Bhattarai, Roshan Mangal
Muthurasu, Alagan
Kim, Taewoo
Saidin, Syafiqah
author_sort Acharya, Debendra
title Double-phase engineering of cobalt sulfide/oxyhydroxide on metal-organic frameworks derived iron carbide-integrated porous carbon nanofibers for asymmetric supercapacitors
title_short Double-phase engineering of cobalt sulfide/oxyhydroxide on metal-organic frameworks derived iron carbide-integrated porous carbon nanofibers for asymmetric supercapacitors
title_full Double-phase engineering of cobalt sulfide/oxyhydroxide on metal-organic frameworks derived iron carbide-integrated porous carbon nanofibers for asymmetric supercapacitors
title_fullStr Double-phase engineering of cobalt sulfide/oxyhydroxide on metal-organic frameworks derived iron carbide-integrated porous carbon nanofibers for asymmetric supercapacitors
title_full_unstemmed Double-phase engineering of cobalt sulfide/oxyhydroxide on metal-organic frameworks derived iron carbide-integrated porous carbon nanofibers for asymmetric supercapacitors
title_sort double-phase engineering of cobalt sulfide/oxyhydroxide on metal-organic frameworks derived iron carbide-integrated porous carbon nanofibers for asymmetric supercapacitors
publisher Springer Science and Business Media B.V.
publishDate 2022
url http://eprints.utm.my/104877/
http://dx.doi.org/10.1007/s42114-023-00755-9
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score 13.209306