Facile fabrication of Ag/PANI/g-C3N4 composite with enhanced electrochemical performance as supercapacitor electrode

Ag nanoparticles decorated Polyaniline (PANI)/graphitic carbon nitride (g-C3N4) composite was fabricated as active electrode materials for supercapacitors via an in-situ oxidative polymerization. Morphology and structure of Ag/PANI/g-C3N4 composite were investigated by scanning electron microscopy (...

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Bibliographic Details
Published in:Journal of electroanalytical chemistry (Lausanne, Switzerland) Switzerland), 2019-02, Vol.835, p.346-353
Main Authors: Ma, Jie, Tao, Xue-Yu, Zhou, Shi-Xiang, Song, Xiang-Zhu, Lin-Guo, Yao-Wang, Zhu, Ya-Bo, Guo, Li-Tong, Liu, Zhang-Sheng, Fan, He-Liang, Wei, Xian-Yong
Format: Article
Language:English
Subjects:
Ag/PANI/g-C3N4
Capacitance
Carbon nitride
Electrochemical analysis
Electrode materials
Electrodes
Electron microscopes
Energy storage and conversion
Fourier transforms
Microscopy
Morphology
Nanocomposite
Nanoparticles
Polyanilines
Scanning electron microscopy
Silver
Sulfuric acid
Supercapacitors
Transmission electron microscopy
X-ray diffraction
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Summary:Ag nanoparticles decorated Polyaniline (PANI)/graphitic carbon nitride (g-C3N4) composite was fabricated as active electrode materials for supercapacitors via an in-situ oxidative polymerization. Morphology and structure of Ag/PANI/g-C3N4 composite were investigated by scanning electron microscopy (SEM), transmission electron microscopy (TEM), Fourier transform infrared (FT-IR) and X-ray diffraction (XRD). The supercapacitive behavior of the electrode material was tested in a three electrode system using 1.0 M H2SO4 electrolyte. The results indicated that the Ag/PANI/g-C3N4 composite delivered a high specific capacitance of 797.8 F g−1 and an excellent capacitance retention of 84.43% after 1000 cycles at an applied current density of 1 A g−1. Ragone plot was derived and compared which showed enhanced supercapacitive performance of Ag/PANI/g-C3N4. The composite should be ideal potential electrode materials for high-performance and effective supercapacitors.
ISSN:1572-6657
1873-2569
DOI:10.1016/j.jelechem.2018.12.025