In situ transmogrification of nanoarchitectured fe-mofs decorated porous carbon nanofibers into efficient positrode for asymmetric supercapacitor.
In situ transmogrification is one of the most promising ways to synthesize positrode materials using a chemical treatment approach under optimal conditions for supercapacitor applications. The nickel salt concentration plays a vital role in the complete transmogrification of Fe-MOFs@PCNFs into Ni-Fe...
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my.utm.1065062024-07-09T06:20:51Z http://eprints.utm.my/106506/ In situ transmogrification of nanoarchitectured fe-mofs decorated porous carbon nanofibers into efficient positrode for asymmetric supercapacitor. Acharya, Debendra Pathak, Ishwor Muthurasu, Alagan Bhattarai, Roshan Mangal Kim, Taewoo Kim, xTae Hoon Saidin, Syafiqah Chhetri, Kisan Kim, Hak Yong Q Science (General) QD Chemistry In situ transmogrification is one of the most promising ways to synthesize positrode materials using a chemical treatment approach under optimal conditions for supercapacitor applications. The nickel salt concentration plays a vital role in the complete transmogrification of Fe-MOFs@PCNFs into Ni-Fe-OH@PCNFs (positrode). Herein, we successfully transform the tetragonal Fe-MOFs@PCNFs structure into pellet-like Ni-Fe-OH@PCNFs via in situ transmogrification under fixed temperature and pressure. The obtained Ni-Fe-OH@PCNFs-1 possess a unique porous architecture with a large surface area (74.3 m2g−1), which facilitates ion relocation and electron movement within the materials during charging/discharging. Owing to the limited surface area of electroactive materials, the double transition metal hydroxides (Ni-Fe-OH@PCNFs-D) synthesized directly (i.e., by employing two metal salts instantaneously) suffer a rapid decline in capacitance during cyclic stability test. The Ni-Fe-OH@PCNFs-1 electrode generated from Fe-MOFs@PCNFs has excellent cycling stability with ~86.7% capacitance retention and ~ 91.3% coulombic efficiency after 10,000 cycles at 10 A g−1. It also exhibits a remarkable specific capacitance of 1528 F g−1 at 1 A g−1. Additionally, the asymmetric supercapacitors (Ni-Fe-OH@PCNFs-1//Fe2O3/NPC@PCNFs) exhibit a maximum energy density of 44.3 Wh kg−1 at a power density of 907 W kg−1). The results of this work suggest the possibility of using MOF-derived nanoporous electrode materials and additional transition metal hydroxides for supercapacitors. Elsevier Ltd. 2023-07 Article PeerReviewed Acharya, Debendra and Pathak, Ishwor and Muthurasu, Alagan and Bhattarai, Roshan Mangal and Kim, Taewoo and Kim, xTae Hoon and Saidin, Syafiqah and Chhetri, Kisan and Kim, Hak Yong (2023) In situ transmogrification of nanoarchitectured fe-mofs decorated porous carbon nanofibers into efficient positrode for asymmetric supercapacitor. Journal of Energy Storage, 63 (106992). NA-NA. ISSN 2352-152X http://dx.doi.org/10.1016/j.est.2023.106992 DOI:10.1016/j.est.2023.106992 |
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Q Science (General) QD Chemistry Acharya, Debendra Pathak, Ishwor Muthurasu, Alagan Bhattarai, Roshan Mangal Kim, Taewoo Kim, xTae Hoon Saidin, Syafiqah Chhetri, Kisan Kim, Hak Yong In situ transmogrification of nanoarchitectured fe-mofs decorated porous carbon nanofibers into efficient positrode for asymmetric supercapacitor. |
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In situ transmogrification is one of the most promising ways to synthesize positrode materials using a chemical treatment approach under optimal conditions for supercapacitor applications. The nickel salt concentration plays a vital role in the complete transmogrification of Fe-MOFs@PCNFs into Ni-Fe-OH@PCNFs (positrode). Herein, we successfully transform the tetragonal Fe-MOFs@PCNFs structure into pellet-like Ni-Fe-OH@PCNFs via in situ transmogrification under fixed temperature and pressure. The obtained Ni-Fe-OH@PCNFs-1 possess a unique porous architecture with a large surface area (74.3 m2g−1), which facilitates ion relocation and electron movement within the materials during charging/discharging. Owing to the limited surface area of electroactive materials, the double transition metal hydroxides (Ni-Fe-OH@PCNFs-D) synthesized directly (i.e., by employing two metal salts instantaneously) suffer a rapid decline in capacitance during cyclic stability test. The Ni-Fe-OH@PCNFs-1 electrode generated from Fe-MOFs@PCNFs has excellent cycling stability with ~86.7% capacitance retention and ~ 91.3% coulombic efficiency after 10,000 cycles at 10 A g−1. It also exhibits a remarkable specific capacitance of 1528 F g−1 at 1 A g−1. Additionally, the asymmetric supercapacitors (Ni-Fe-OH@PCNFs-1//Fe2O3/NPC@PCNFs) exhibit a maximum energy density of 44.3 Wh kg−1 at a power density of 907 W kg−1). The results of this work suggest the possibility of using MOF-derived nanoporous electrode materials and additional transition metal hydroxides for supercapacitors. |
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Article |
author |
Acharya, Debendra Pathak, Ishwor Muthurasu, Alagan Bhattarai, Roshan Mangal Kim, Taewoo Kim, xTae Hoon Saidin, Syafiqah Chhetri, Kisan Kim, Hak Yong |
author_facet |
Acharya, Debendra Pathak, Ishwor Muthurasu, Alagan Bhattarai, Roshan Mangal Kim, Taewoo Kim, xTae Hoon Saidin, Syafiqah Chhetri, Kisan Kim, Hak Yong |
author_sort |
Acharya, Debendra |
title |
In situ transmogrification of nanoarchitectured fe-mofs decorated porous carbon nanofibers into efficient positrode for asymmetric supercapacitor. |
title_short |
In situ transmogrification of nanoarchitectured fe-mofs decorated porous carbon nanofibers into efficient positrode for asymmetric supercapacitor. |
title_full |
In situ transmogrification of nanoarchitectured fe-mofs decorated porous carbon nanofibers into efficient positrode for asymmetric supercapacitor. |
title_fullStr |
In situ transmogrification of nanoarchitectured fe-mofs decorated porous carbon nanofibers into efficient positrode for asymmetric supercapacitor. |
title_full_unstemmed |
In situ transmogrification of nanoarchitectured fe-mofs decorated porous carbon nanofibers into efficient positrode for asymmetric supercapacitor. |
title_sort |
in situ transmogrification of nanoarchitectured fe-mofs decorated porous carbon nanofibers into efficient positrode for asymmetric supercapacitor. |
publisher |
Elsevier Ltd. |
publishDate |
2023 |
url |
http://eprints.utm.my/106506/ http://dx.doi.org/10.1016/j.est.2023.106992 |
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1805880821607825408 |
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13.209306 |