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Layered construction of integrated sulfur-bridged CoNi-S/rGO architecture for enhanced electrochemical energy storage

Transition metals chalcogenides (TMCs) have been recognised so far with their high Faradic activity, making them promising candidates for efficient charge transfer electrodes. However, their tendency to aggregate hindered their potential applications in supercapacitors. This study introduces a novel...

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Main Authors: Aboelazm, Eslam Atef Abdelaziz, Khe, Chengseong, Grätz, Sven, Chong, Kwok Feng, Mohamed Shuaib, Mohamed Saheed, Hegazy, Mohamed Barakat Zakaria
Format: Article
Language:English
English
Published: Elsevier B.V. 2024
Subjects:
HD Industries. Land use. Labor
Q Science (General)
T Technology (General)
Online Access:http://umpir.ump.edu.my/id/eprint/41374/1/Layered%20construction%20of%20integrated%20sulfur-bridged%20CoNi-S_rGO.pdf
http://umpir.ump.edu.my/id/eprint/41374/2/Layered%20construction%20of%20integrated%20sulfur-bridged%20CoNi-S_rGO%20architecture%20for%20enhanced%20electrochemical%20energy%20storage_ABS.pdf
http://umpir.ump.edu.my/id/eprint/41374/
https://doi.org/10.1016/j.cej.2024.151557
https://doi.org/10.1016/j.cej.2024.151557
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spelling my.ump.umpir.413742024-12-09T04:28:10Z http://umpir.ump.edu.my/id/eprint/41374/ Layered construction of integrated sulfur-bridged CoNi-S/rGO architecture for enhanced electrochemical energy storage Aboelazm, Eslam Atef Abdelaziz Khe, Chengseong Grätz, Sven Chong, Kwok Feng Mohamed Shuaib, Mohamed Saheed Hegazy, Mohamed Barakat Zakaria HD Industries. Land use. Labor Q Science (General) T Technology (General) Transition metals chalcogenides (TMCs) have been recognised so far with their high Faradic activity, making them promising candidates for efficient charge transfer electrodes. However, their tendency to aggregate hindered their potential applications in supercapacitors. This study introduces a novel cathode material composed of CoNi-sulfides (CoNi-S) nanostructured flakes and reduced graphene oxide (rGO) sheets designed to be connected through additional sulfur atoms to enhance their conductivity and electroactive surface area for hybrid supercapacitors. Remarkable results were realised by forming a layered structure of CoNi-S/rGO in which rGO sheets wrap CoNi-S flakes. Interestingly, the CoNi-S/rGO composite exhibited a specific capacitance of 3308F g−1 (1654C g−1) at 1 A g−1, outperforming the performance of a single CoNi-S component, which recorded 2155F g−1 (1077.5C g−1) at identical conditions. Both materials demonstrated exceptional high-rate capabilities, retaining about 70 % of their capacitance even at an elevated current density of 10 A g−1. In a two-electrode coin cell system, the device showcased a high energy density of 50.2 Wh kg−1 at a power density of 750 W kg−1. It maintained an impressive 84 % capacitance retention after enduring 35,000 cycles. These remarkable findings hold significant promise for advanced energy storage applications, marking substantial progress forward in hybrid supercapacitor technology. Elsevier B.V. 2024-06-15 Article PeerReviewed pdf en http://umpir.ump.edu.my/id/eprint/41374/1/Layered%20construction%20of%20integrated%20sulfur-bridged%20CoNi-S_rGO.pdf pdf en http://umpir.ump.edu.my/id/eprint/41374/2/Layered%20construction%20of%20integrated%20sulfur-bridged%20CoNi-S_rGO%20architecture%20for%20enhanced%20electrochemical%20energy%20storage_ABS.pdf Aboelazm, Eslam Atef Abdelaziz and Khe, Chengseong and Grätz, Sven and Chong, Kwok Feng and Mohamed Shuaib, Mohamed Saheed and Hegazy, Mohamed Barakat Zakaria (2024) Layered construction of integrated sulfur-bridged CoNi-S/rGO architecture for enhanced electrochemical energy storage. Chemical Engineering Journal, 490 (151557). pp. 1-11. ISSN 1385-8947. (Published) https://doi.org/10.1016/j.cej.2024.151557 https://doi.org/10.1016/j.cej.2024.151557
institution Universiti Malaysia Pahang Al-Sultan Abdullah
building UMPSA Library
collection Institutional Repository
continent Asia
country Malaysia
content_provider Universiti Malaysia Pahang Al-Sultan Abdullah
content_source UMPSA Institutional Repository
url_provider http://umpir.ump.edu.my/
language English
English
topic HD Industries. Land use. Labor
Q Science (General)
T Technology (General)
spellingShingle HD Industries. Land use. Labor
Q Science (General)
T Technology (General)
Aboelazm, Eslam Atef Abdelaziz
Khe, Chengseong
Grätz, Sven
Chong, Kwok Feng
Mohamed Shuaib, Mohamed Saheed
Hegazy, Mohamed Barakat Zakaria
Layered construction of integrated sulfur-bridged CoNi-S/rGO architecture for enhanced electrochemical energy storage
description Transition metals chalcogenides (TMCs) have been recognised so far with their high Faradic activity, making them promising candidates for efficient charge transfer electrodes. However, their tendency to aggregate hindered their potential applications in supercapacitors. This study introduces a novel cathode material composed of CoNi-sulfides (CoNi-S) nanostructured flakes and reduced graphene oxide (rGO) sheets designed to be connected through additional sulfur atoms to enhance their conductivity and electroactive surface area for hybrid supercapacitors. Remarkable results were realised by forming a layered structure of CoNi-S/rGO in which rGO sheets wrap CoNi-S flakes. Interestingly, the CoNi-S/rGO composite exhibited a specific capacitance of 3308F g−1 (1654C g−1) at 1 A g−1, outperforming the performance of a single CoNi-S component, which recorded 2155F g−1 (1077.5C g−1) at identical conditions. Both materials demonstrated exceptional high-rate capabilities, retaining about 70 % of their capacitance even at an elevated current density of 10 A g−1. In a two-electrode coin cell system, the device showcased a high energy density of 50.2 Wh kg−1 at a power density of 750 W kg−1. It maintained an impressive 84 % capacitance retention after enduring 35,000 cycles. These remarkable findings hold significant promise for advanced energy storage applications, marking substantial progress forward in hybrid supercapacitor technology.
format Article
author Aboelazm, Eslam Atef Abdelaziz
Khe, Chengseong
Grätz, Sven
Chong, Kwok Feng
Mohamed Shuaib, Mohamed Saheed
Hegazy, Mohamed Barakat Zakaria
author_facet Aboelazm, Eslam Atef Abdelaziz
Khe, Chengseong
Grätz, Sven
Chong, Kwok Feng
Mohamed Shuaib, Mohamed Saheed
Hegazy, Mohamed Barakat Zakaria
author_sort Aboelazm, Eslam Atef Abdelaziz
title Layered construction of integrated sulfur-bridged CoNi-S/rGO architecture for enhanced electrochemical energy storage
title_short Layered construction of integrated sulfur-bridged CoNi-S/rGO architecture for enhanced electrochemical energy storage
title_full Layered construction of integrated sulfur-bridged CoNi-S/rGO architecture for enhanced electrochemical energy storage
title_fullStr Layered construction of integrated sulfur-bridged CoNi-S/rGO architecture for enhanced electrochemical energy storage
title_full_unstemmed Layered construction of integrated sulfur-bridged CoNi-S/rGO architecture for enhanced electrochemical energy storage
title_sort layered construction of integrated sulfur-bridged coni-s/rgo architecture for enhanced electrochemical energy storage
publisher Elsevier B.V.
publishDate 2024
url http://umpir.ump.edu.my/id/eprint/41374/1/Layered%20construction%20of%20integrated%20sulfur-bridged%20CoNi-S_rGO.pdf
http://umpir.ump.edu.my/id/eprint/41374/2/Layered%20construction%20of%20integrated%20sulfur-bridged%20CoNi-S_rGO%20architecture%20for%20enhanced%20electrochemical%20energy%20storage_ABS.pdf
http://umpir.ump.edu.my/id/eprint/41374/
https://doi.org/10.1016/j.cej.2024.151557
https://doi.org/10.1016/j.cej.2024.151557
_version_ 1822924784293380096
score 13.23648

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