摘要
在酸性条件下,以二氧化碲为氧化剂氧化吡咯,制备了聚吡咯/碲纳米复合物。在制备过程中,加入的碳量子点增加了聚合物的导电性,反应剩余的二氧化碲与生成的单质碲组成Te/Te~(4+)电对,增加了复合物的比电容。探讨了聚合条件及溶液组成对产物性能的影响。采用扫描电镜、透射电镜、红外光谱等手段对复合物的结构与形貌进行了表征,研究了所得复合物的电容性质。结果表明,在最佳条件下,所得复合物的比电容高达1576 F/g。
Polypyrrole/tellurium(PPy/Te) nanocomposite was prepared using TeO_2 as the oxidant to pyrrole in acidic aqueous phase. In process, carbon quantum dots were added in order to enhance the conductivity of nanocomposite, and the remainder TeO_2 increased the specific capacitance of nanocomposite due to the formation of Te/Te~(4+) redox couple. The effect of reaction conditions and the solution composition on the property of nanocomposite was explored. The composition and morphology of nanocomposite were characterized by scanning electron microscope, transmission electron microscopy and fourier transform infrared spectrometer. Significantly, the capacitive property of the nanocomposite was studied, and the results show that the PPy/Te nanocomposite obtained optimum condition put up high specific capacitance(1576 F/g).
引文
[1]Keskinen J.;Tuurala S.;Sj?din M.;Kiri K.;Nyholm L.;Flyktman T.;Str?mme M.;Smolander M.Synthetic Metals.2015,203:192.