Metal–organic framework induced hybrid NiCo2S4/PPy structures with unique interface features for high performance flexible energy storage devices

Designing electrodes with hybrid structures is significant for improving energy storage devices. Overall, single-component metal oxides usually show poor stability and conductivity. In order to solve this problem, based on the easy-to-modify properties of spinel-structured NiCo2S4, hybrid-structure...

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Bibliographic Details
Published in:CrystEngComm 2022-12, Vol.24 (48), p.8399-8406
Main Authors: Huang, He, Miao, Lihua, Sui, Lili, Yang, Dan, Kuang, Baoping, Zhang, Chaohui
Format: Article
Language:English
Subjects:
Energy storage
Hybrid structures
Metal foams
Metal oxides
Metal-organic frameworks
Stability
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Summary:Designing electrodes with hybrid structures is significant for improving energy storage devices. Overall, single-component metal oxides usually show poor stability and conductivity. In order to solve this problem, based on the easy-to-modify properties of spinel-structured NiCo2S4, hybrid-structure NiCo2S4/PPy is successfully synthesized through hydrothermal synthesis and electrodeposition methods, and uniformly grown on nickel foam. Hybrid NiCo2S4/PPy structures exhibit a high specific capacitance of 983 C g−1 at 1 A g−1 and excellent stability. The assembled supercapacitor device reaches a high energy density of 76.5 W kg−1 at 2984 W h kg−1 and excellent cycling performance, and mechanical flexibility.
ISSN:1466-8033
DOI:10.1039/d2ce01142e