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首页> 外文期刊>Journal of Energy Storage >PANI@Co-Porphyrins composite for the construction of supercapacitors
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PANI@Co-Porphyrins composite for the construction of supercapacitors

机译:用于超级电容器建造的PANI @ Co-卟啉复合材料

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Here we present for the first time, a high-performance supercapacitor based on PANI@Co-Porphyrins composite electrode. The evaluation of new supercapacitor has been achieved by cyclic voltammetry (CV) and galvanostatic charge/discharge (GSCD) tests in 1.0 M H2SO4 solution. The as-prepared composite is confirmed by Fourier transform infrared (FT-IR) spectroscopy, thermo gravimetric analysis (TGA), X-ray diffraction (XRD), energy-dispersive X-ray spectroscopy (EDX) and transmission electron microscopy (TEM) analysis. The incorporation of Co-Porphyrins nanoparticles into polyaniline (PANI) enhances greatly the electrochemical performance of supercapacitor. The new supercapacitor based on PANI@Co-Porphyrins composite electrode displays superior specific capacitance of 823 F g(-1) at 0.5 A g(-1). Further increasing the current density to 20 A g(-1) leads to a decrease in C. values to reach to 560 F g(-1). The capacitance retention is maintained at nearly 91% after 1000 cycles. As well, the supercapacitor yields an optimum energy density and power density in the range from 41 to 27 Wh kg(-1) and 150 to 5856 W kg(-1), respectively.
机译:在这里,我们首次展示了一种基于PANI @ Co-Porphyrins复合电极的高性能超级电容器。通过在1.0 M H2SO4溶液中进行的循环伏安法(CV)和恒电流充放电(GSCD)测试,已经实现了对新超级电容器的评估。通过傅立叶变换红外(FT-IR)光谱,热重分析(TGA),X射线衍射(XRD),能量色散X射线光谱(EDX)和透射电子显微镜(TEM)确认制备的复合材料分析。 Co-卟啉纳米颗粒掺入聚苯胺(PANI)中可大大增强超级电容器的电化学性能。基于PANI @ Co-Porphyrins复合电极的新型超级电容器在0.5 A g(-1)时显示出823 F g(-1)的优异比电容。将电流密度进一步提高到20 A g(-1)会导致C.值降低,达到560 F g(-1)。 1000次循环后,电容保持率保持在近91%。同样,超级电容器产生的最佳能量密度和功率密度分别在41至27 Wh kg(-1)和150至5856 W kg(-1)的范围内。

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