期刊
INDUSTRIAL & ENGINEERING CHEMISTRY RESEARCH
卷 55, 期 4, 页码 866-874出版社
AMER CHEMICAL SOC
DOI: 10.1021/acs.iecr.5b03891
关键词
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资金
- Natural Science Foundation of Gansu Province [1107RJZA213]
- Fundamental Research Funds for the Central Universities [lzujbky-2011-21, lzujbky-2013-237]
CeO2/PPy nanocomposites were synthesized via in situ chemical oxidative polymerization of pyrrole based on the two kinds of amine-fanctionalized CeO2 nanoparticles with 3-triethoxysilylpropylamine (APTES) or p-aminobenzoic acid (PABA), respectively. The morphology and structure of the CeO2/PPy samples with different interface interactions were comparatively investigated by transmission electron microscopy, Brunauer-Emmett-Teller equation, Fourier transform infrared spectroscopy, UV-vis, X-ray diffraction analysis, X-ray photoelectron spectroscopy, and thermal gravimetric analysis. It was found that the introduction of the amine-functionalized CeO2 nanoparticles into the PPy matrix significantly enhanced the thermal stability and electrical conductivity of the resulting nanocomposites. As an electrode material for electrochemical supercapacitors, the CeO2/PPy nanocomposites with different amine-functionalized CeO2 nanoparticles were characterized by galvanostatic charge/discharge (GCD) and cyclic voltammetry (CV) tests. The CeO2/PPy nanocomposites showed improved electrochemical performance in comparison with the pure PPy. The P-CeO2/PPy nanocomposites synthesized with the PABA-functionalized CeO2 nanoparticles (P-CeO2) exhibited a higher specific capacitance, while those with the APTES-functionalized CeO2 nanoparticles (A-CeO2) possessed the higher cycling stability.
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