Characterisations of carbon-fenced conductive silver nanowires-supported hierarchical polyaniline nanowires. (1st December 2018)

• Record Type: Journal Article
• Authors: Chen, Shaoyun; Zhang, Xingying; Liu, Ben; Shi, Hong; Chen, Fang; Hu, Chenglong; Chen, Jian
• Is Part Of: Electrochimica acta. Volume 292(2018)
• Page Start: 435
• Page End: 445
• Publication Date: 2018-12-01
• Subjects: Polyaniline -- Silver nanowires -- Carbon -- Hierarchical structure -- Supercapacitors; Electrochemistry -- Periodicals; Electrochemistry, Industrial -- Periodicals; 541.37
• DOI: 10.1016/j.electacta.2018.09.143
• Languages: English
• ISSNs: 0013-4686

Abstract

Abstract: The novel carbon-fenced conductive silver nanowires-supported hierarchical polyaniline nanowires have been successfully designed to exploit the synergistic effect for electrochemical energy storage. The electronic conductive hybrid polyaniline@carbon@silver nanowires nanocomposite electrode leads to a high specific capacity (785 C/g at 0.5 A/g) and good cycling stability (94.1% after 3000 cycles) compared with the electrode without silver nanowires, and it is also superior or close to some polyaniline-based materials. The presence of silver nanowires on hierarchical polyaniline nanowires may provide a least resistance path to electrons, which can accelerate electron transport between the current collector and the active material to enhance the specific capacity. The carbon shell fenced on conductive silver nanowires can be served as a good physical substrate to promote the polyaniline growth with well-defined hierarchical structure, and hold the polyaniline fragments together and maintain their electrochemical stability during charge-discharge process. The excellent electrochemical behavior is in combination with the ideal form of hierarchical architecture, which suggests that the as-prepared polyaniline@carbon@silver nanowires electrode has the significant potential to be used as a promising electrode material for lightweight and flexible energy storage devices. Graphical abstract: The novel carbon-fenced conductive silver nanowires-supported hierarchical polyaniline nanowires (i.e. PANI@C@AgNWs) have been successfully designed to exploit the synergistic effect for electrochemical energy storage. The electronic conductive hybrid PANI@C@AgNWs nanocomposite electrode leads to a high specific capacity (785 C/g at 0.5 A/g) and good cycling stability (94.1% after 3000 cycles) compared to the electrode without AgNWs, and it is also superior or close to some individual PANI nanostructures and PANI composite materials. Highlights: The carbon-fenced Ag nanowires-supported hierarchical PANI nanowires is designed. The carbon and Ag nanowire is exploited the synergistic effect for PANI electrode. The specific capacity of 785 C/g was obtained when PANI acted as the electrode. The cycling stability with capacity retentions of 94.1% after 3000 cycles.