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Facile and Controllable Synthesis of CuS@Ni-Co Layered Double Hydroxide Nanocages for Hybrid Supercapacitors

[Image: see text] The synthesis of battery-type electrode materials with hollow nanostructures for high-performance hybrid supercapacitors (HSCs) remains challenging. In this study, hollow CuS@Ni-Co layered double hydroxide (CuS-LDH) composites with distinguished compositions and structures are succ...

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Autores principales: Sheng, Zhe, Lin, Xiongchao, Zhao, Yiting, Huang, Lei, Gao, Hongfeng, Wei, Hao, Wang, Caihong, Xu, Deping, Wang, Yonggang
Formato: Online Artículo Texto
Lenguaje:English
Publicado: American Chemical Society 2022
Acceso en línea:https://www.ncbi.nlm.nih.gov/pmc/articles/PMC9366966/
https://www.ncbi.nlm.nih.gov/pubmed/35967029
http://dx.doi.org/10.1021/acsomega.2c03511
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author Sheng, Zhe
Lin, Xiongchao
Zhao, Yiting
Huang, Lei
Gao, Hongfeng
Wei, Hao
Wang, Caihong
Xu, Deping
Wang, Yonggang
author_facet Sheng, Zhe
Lin, Xiongchao
Zhao, Yiting
Huang, Lei
Gao, Hongfeng
Wei, Hao
Wang, Caihong
Xu, Deping
Wang, Yonggang
author_sort Sheng, Zhe
collection PubMed
description [Image: see text] The synthesis of battery-type electrode materials with hollow nanostructures for high-performance hybrid supercapacitors (HSCs) remains challenging. In this study, hollow CuS@Ni-Co layered double hydroxide (CuS-LDH) composites with distinguished compositions and structures are successfully synthesized by co-precipitation and the subsequent etching/ion-exchange reaction. CuS-LDH-10 with uniformly dispersed CuS prepared with the addition of 10 mg of CuS shows a unique hollow polyhedral structure constituted by loose nanosphere units, and these nanospheres are composed of interlaced fine nanosheets. The composite prepared with 30 mg of CuS addition (CuS-LDH-30) is composed of a hollow cubic morphology with vertically aligned nanosheets on the CuS shell. The CuS-LDH-10 and CuS-LDH-30 electrodes exhibit high specific capacity (765.1 and 659.6 C g(–1) at 1 A g(–1), respectively) and superior cycling performance. Additionally, the fabricated HSC delivers a prominent energy density of 52.7 Wh kg(–1) at 804.5 W kg(–1) and superior cycling performance of 87.9% capacity retention after 5000 cycles. Such work offers a practical and effortless route for synthesizing unique metal sulfide/hydroxide composite electrode materials with hollow structures for high-performance HSCs.
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spelling pubmed-93669662022-08-12 Facile and Controllable Synthesis of CuS@Ni-Co Layered Double Hydroxide Nanocages for Hybrid Supercapacitors Sheng, Zhe Lin, Xiongchao Zhao, Yiting Huang, Lei Gao, Hongfeng Wei, Hao Wang, Caihong Xu, Deping Wang, Yonggang ACS Omega [Image: see text] The synthesis of battery-type electrode materials with hollow nanostructures for high-performance hybrid supercapacitors (HSCs) remains challenging. In this study, hollow CuS@Ni-Co layered double hydroxide (CuS-LDH) composites with distinguished compositions and structures are successfully synthesized by co-precipitation and the subsequent etching/ion-exchange reaction. CuS-LDH-10 with uniformly dispersed CuS prepared with the addition of 10 mg of CuS shows a unique hollow polyhedral structure constituted by loose nanosphere units, and these nanospheres are composed of interlaced fine nanosheets. The composite prepared with 30 mg of CuS addition (CuS-LDH-30) is composed of a hollow cubic morphology with vertically aligned nanosheets on the CuS shell. The CuS-LDH-10 and CuS-LDH-30 electrodes exhibit high specific capacity (765.1 and 659.6 C g(–1) at 1 A g(–1), respectively) and superior cycling performance. Additionally, the fabricated HSC delivers a prominent energy density of 52.7 Wh kg(–1) at 804.5 W kg(–1) and superior cycling performance of 87.9% capacity retention after 5000 cycles. Such work offers a practical and effortless route for synthesizing unique metal sulfide/hydroxide composite electrode materials with hollow structures for high-performance HSCs. American Chemical Society 2022-07-28 /pmc/articles/PMC9366966/ /pubmed/35967029 http://dx.doi.org/10.1021/acsomega.2c03511 Text en © 2022 The Authors. Published by American Chemical Society https://creativecommons.org/licenses/by-nc-nd/4.0/Permits non-commercial access and re-use, provided that author attribution and integrity are maintained; but does not permit creation of adaptations or other derivative works (https://creativecommons.org/licenses/by-nc-nd/4.0/).
spellingShingle Sheng, Zhe
Lin, Xiongchao
Zhao, Yiting
Huang, Lei
Gao, Hongfeng
Wei, Hao
Wang, Caihong
Xu, Deping
Wang, Yonggang
Facile and Controllable Synthesis of CuS@Ni-Co Layered Double Hydroxide Nanocages for Hybrid Supercapacitors
title Facile and Controllable Synthesis of CuS@Ni-Co Layered Double Hydroxide Nanocages for Hybrid Supercapacitors
title_full Facile and Controllable Synthesis of CuS@Ni-Co Layered Double Hydroxide Nanocages for Hybrid Supercapacitors
title_fullStr Facile and Controllable Synthesis of CuS@Ni-Co Layered Double Hydroxide Nanocages for Hybrid Supercapacitors
title_full_unstemmed Facile and Controllable Synthesis of CuS@Ni-Co Layered Double Hydroxide Nanocages for Hybrid Supercapacitors
title_short Facile and Controllable Synthesis of CuS@Ni-Co Layered Double Hydroxide Nanocages for Hybrid Supercapacitors
title_sort facile and controllable synthesis of cus@ni-co layered double hydroxide nanocages for hybrid supercapacitors
url https://www.ncbi.nlm.nih.gov/pmc/articles/PMC9366966/
https://www.ncbi.nlm.nih.gov/pubmed/35967029
http://dx.doi.org/10.1021/acsomega.2c03511
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