首页> 外文期刊>Journal of Applied Polymer Science >One-step oxidation of aniline by peroxotitanium acid to polyaniline-titanium dioxide: A highly stable electrode for a supercapacitor
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One-step oxidation of aniline by peroxotitanium acid to polyaniline-titanium dioxide: A highly stable electrode for a supercapacitor

机译:过氧钛酸将苯胺一步氧化为聚苯胺-二氧化钛:超级电容器的高度稳定电极

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摘要

In this study, to make a stable electrode material for a supercapacitor, we selected a polyaniline and titanium dioxide (TiO2) hybrid material. Peroxotitanium acid was used to oxidize aniline in the presence of sulfuric acid to a poly(aniline sulfate) salt-titanium oxide composite in one step. IR, X-ray diffraction, and energy dispersive X-ray analysis (EDAX) analyses supported the formation of the composite. The poly(aniline sulfate) salt-titanium oxide composites (50 wt % each) showed an amorphous, flakelike morphology having a conductivity value of 8 x 10(-3) S/cm with an excellent yield and stability (300 degrees C).This composite material in the cell configuration showed a specific capacitance of 320 F/g at a 0.33 A/g discharge current density. Thirty thousand charge-discharge (CD) cycles at a heavy CD current density of 3.3 A/g were carried out on the supercapacitor cell. The values of equivalent series resistance (ESR) (8-9 ) and efficiency (100-98%) were found to be independent of the cycle number with an excellent retention capacity of 83%. (c) 2014 Wiley Periodicals, Inc. J. Appl. Polym. Sci. 2015, 132, 41711.
机译:在这项研究中,为了制造稳定的超级电容器电极材料,我们选择了聚苯胺和二氧化钛(TiO2)混合材料。在硫酸存在下,使用过氧钛酸将苯胺氧化为聚(硫酸苯胺)盐-氧化钛复合材料。红外,X射线衍射和能量色散X射线分析(EDAX)分析支持了复合材料的形成。聚(硫酸苯胺)盐-氧化钛复合物(各50重量%)显示出具有8×10(-3)S / cm的电导率值的无定形薄片状形态,具有优异的产率和稳定性(300℃)。电池配置中的这种复合材料在0.33 A / g的放电电流密度下显示出320 F / g的比电容。在超级电容器电池上以3.3 A / g的重CD电流密度进行了3万次充放电(CD)循环。发现等效串联电阻(ESR)(8-9)和效率(100-98%)的值与循环次数无关,具有83%的出色保持能力。 (c)2014 Wiley Periodicals,Inc. J. Appl。 Polym。科学2015,132,41711。

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