Metal–organic framework induced hybrid NiCo2S4/PPy structures with unique interface features for high performance flexible energy storage devices. Issue 48 (24th November 2022)

• Record Type: Journal Article
• Authors: Huang, He; Miao, Lihua; Sui, Lili; Yang, Dan; Kuang, Baoping; Zhang, Chaohui
• Is Part Of: CrystEngComm. Volume 24:Issue 48(2022)
• Page Start: 8399
• Page End: 8406
• Publication Date: 2022-11-24
• Subjects: Crystals -- Periodicals; Crystal growth -- Periodicals; Crystallography -- Periodicals; Cristaux -- Périodiques; Cristaux -- Croissance -- Périodiques; Cristallographie -- Périodiques; 548
• DOI: 10.1039/d2ce01142e
• Languages: English
• ISSNs: 1466-8033

Abstract

Abstract : In this work, we report hybrid-structure NiCo2 S4 /PPy nanosheets through hydrothermal synthesis and electrodeposition methods. Meanwhile, the NiCo2 S4 /PPy-110 samples exhibit a high specific capacitance of 983 C g −1 at 1 A g −1 and excellent stability. Abstract : 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 NiCo2 S4, hybrid-structure NiCo2 S4 /PPy is successfully synthesized through hydrothermal synthesis and electrodeposition methods, and uniformly grown on nickel foam. Hybrid NiCo2 S4 /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.