兰州大学机构库
Three-Dimensional Polypyrrole-Decorated CuCo2S4 Nanowires Anchored on Nickel Foam: A Promising Electrode for High-Performance Supercapacitors
Wu, Qingfeng; Zhang, Yuhao; Lin, Yuan; Wei, Wei; Liu, Guo; Cui, Xiaosha; Su, Meixia; Jiang, Haiqing; Wu, Tianyu; Li, Xijuan; Lv, Xueliang; Tao, K(陶琨); Xie, EQ(谢二庆); Zhang, ZX(张振兴)
2023-09-27
Online publication date2023-09
Source PublicationACS Applied Materials & Interfaces   Impact Factor & Quartile Of Published Year  The Latest Impact Factor & Quartile
ISSN1944-8244 ; 1944-8252
page numbers11
AbstractThe exploitation of high-performance supercapacitors is crucial to promote energy storage technologies. Benefiting from the three-dimensional conductive micronanostructures and high specific capacity of the PPy@CuCo2S4@NF (polypyrrole/copper cobalt sulfide/nickel foam) composite electrode, this electrode exhibits a high specific capacity of 1403.21 C g(-1) at 1 A g(-1) and a capacitance retention of 85.79% after 10,000 cycles at 10 A g(-1). The assembled PPy@CuCo2S4@NF//AC aqueous hybrid supercapacitor (AHSC) reveals a wide operating potential window of 1.5 V and achieves a high specific capacity of 322.52 C g(-1) at 1 A g(-1) and a capacitance retention of 86.84% after 15,000 cycles at 10 A g(-1). The AHSC also exhibits a high power density of 733.69 W kg(-1) at an energy density of 67.19 W h kg(-1), surpassing those of previously reported spinel-based supercapacitors. Ex situ X-ray diffraction and X-ray photoelectron spectroscopy results show that the CuCo2S4 spinel structure changes to CuS2 and CoS2 cube structures, and the oxidation states of Cu and Co increase during charging and discharging processes. Density functional theory calculations suggest a superior conductivity for CuCo2S4 compared to that for CuCo2O4, demonstrating that CuCo2S4 has superior electrochemical performance. These findings attest to the considerable potential of the spinel materials for advanced energy storage applications.
Keywordspinel material electrochemicalenergy storage ex situ XRD and XPS density functionaltheory aqueous asymmetric supercapacitor
PublisherAMER CHEMICAL SOC
DOI10.1021/acsami.3c09922
Indexed BySCIE
Language英语
WOS Research AreaScience & Technology - Other Topics ; Materials Science
WOS SubjectNanoscience & Nanotechnology ; Materials Science, Multidisciplinary
WOS IDWOS:001074684400001
Original Document TypeArticle ; Early Access
PMID 37755826
Citation statistics
Cited Times:1[WOS]   [WOS Record]     [Related Records in WOS]
Document Type期刊论文
Identifierhttps://ir.lzu.edu.cn/handle/262010/569595
Collection兰州大学
物理科学与技术学院
Corresponding AuthorZhang, Zhenxing
Affiliation
Lanzhou Univ, Sch Phys Sci & Technol, Key Lab Magnetism & Magnet Mat, Minist Educ, Lanzhou 730000, Peoples R China
First Author AffilicationSchool of Physical Science and Technology
Corresponding Author AffilicationSchool of Physical Science and Technology
First Signature AffilicationSchool of Physical Science and Technology
Recommended Citation
GB/T 7714
Wu, Qingfeng,Zhang, Yuhao,Lin, Yuan,et al. Three-Dimensional Polypyrrole-Decorated CuCo2S4 Nanowires Anchored on Nickel Foam: A Promising Electrode for High-Performance Supercapacitors[J]. ACS Applied Materials & Interfaces,2023.
APA Wu, Qingfeng.,Zhang, Yuhao.,Lin, Yuan.,Wei, Wei.,Liu, Guo.,...&Zhang, Zhenxing.(2023).Three-Dimensional Polypyrrole-Decorated CuCo2S4 Nanowires Anchored on Nickel Foam: A Promising Electrode for High-Performance Supercapacitors.ACS Applied Materials & Interfaces.
MLA Wu, Qingfeng,et al."Three-Dimensional Polypyrrole-Decorated CuCo2S4 Nanowires Anchored on Nickel Foam: A Promising Electrode for High-Performance Supercapacitors".ACS Applied Materials & Interfaces (2023).
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