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

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

Content Provider	Europe PMC
Author	Sheng, Zhe Lin, Xiongchao Zhao, Yiting Huang, Lei Gao, Hongfeng Wei, Hao Wang, Caihong Xu, Deping Wang, Yonggang
Copyright Year	2022
Abstract	The synthesis of battery-type electrode materials withhollow nanostructuresfor 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 successfullysynthesized by co-precipitation and the subsequent etching/ion-exchangereaction. CuS-LDH-10 with uniformly dispersed CuS prepared with theaddition of 10 mg of CuS shows a unique hollow polyhedral structureconstituted by loose nanosphere units, and these nanospheres are composedof interlaced fine nanosheets. The composite prepared with 30 mg ofCuS addition (CuS-LDH-30) is composed of a hollow cubic morphologywith vertically aligned nanosheets on the CuS shell. The CuS-LDH-10and CuS-LDH-30 electrodes exhibit high specific capacity (765.1 and659.6 C g–1 at 1 A g–1, respectively)and superior cycling performance. Additionally, the fabricated HSCdelivers a prominent energy density of 52.7 Wh kg–1 at 804.5 W kg–1 and superior cycling performanceof 87.9% capacity retention after 5000 cycles. Such work offers apractical and effortless route for synthesizing unique metal sulfide/hydroxidecomposite electrode materials with hollow structures for high-performanceHSCs.
Journal	ACS Omega
Volume Number	7
PubMed Central reference number	PMC9366966
Issue Number	31
PubMed reference number	35967029
e-ISSN	24701343
DOI	10.1021/acsomega.2c03511
Language	English
Publisher	American Chemical Society
Publisher Date	2022-07-28
Access Restriction	Open
Rights License	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/). © 2022 The Authors. Published by American Chemical Society
Content Type	Text
Resource Type	Article
Subject	Chemistry Chemical Engineering

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