期刊
JOURNAL OF NANOSCIENCE AND NANOTECHNOLOGY
卷 16, 期 3, 页码 2937-2943出版社
AMER SCIENTIFIC PUBLISHERS
DOI: 10.1166/jnn.2016.11096
关键词
Supercapacitor; Electrospinning; 3-D Template; Polyaniline; Titanium Oxide
类别
资金
- Technology Development Program for Strategic Core Materials - Ministry of Trade, Industry and Energy [10047758]
- National Research Foundation of Korea (NRF) funded by the Ministry of Education, Republic of Korea [2012R1A6A1029029, 2012R1A2A2A01013080, 2014M3A7B4052201]
- Korea Evaluation Institute of Industrial Technology (KEIT) [10047758] Funding Source: Korea Institute of Science & Technology Information (KISTI), National Science & Technology Information Service (NTIS)
- National Research Foundation of Korea [2012R1A2A2A01013080, 2014M3A7B4052201, 2015R1A2A2A01008398, 2012R1A6A1029029] Funding Source: Korea Institute of Science & Technology Information (KISTI), National Science & Technology Information Service (NTIS)
In this study, polyaniline/titanium oxide (PANi-TiO2) nanoweb composite was fabricated through electrochemical deposition and electrospinning techniques, and the composite was further utilized as an electrode for a supercapacitor. The PANi-TiO2 composite film showed three-dimensional hierarchical micro/nano architecture. The film was deposited on the current collector without the use of any binders. The morphology of the PANi-TiO2 composite film was confirmed by the use of field emission scanning electron microscopy (FE-SEM) analysis that polyaniline was grown in the form of nanorods with a diameter of 100 nm-200 nm on a TiO2 nanoweb. The chemical composition and quantitative analysis were determined by X-ray photoelectron spectroscopy (XPS), X-ray diffraction (XRD), and thermogravimetric analysis (TGA). The electrochemical properties were analyzed by cyclic voltammetry (CV), chronopotentiometry, and electrochemical impedance spectroscopy (EIS). The result of electrochemical tests indicated that TiO2-PANi electrode displayed a high specific capacitance of 306.5 Fg(-1) at the scan rate of 20 mVs(-1), with the capacitance retention ratio being 103% after 500 cycles at the scan rate of 50 mVs(-1).
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