導(dǎo)電高分子及其復(fù)合物的合成與應(yīng)用
發(fā)布時(shí)間:2018-03-20 22:45
本文選題:聚吡咯 切入點(diǎn):石墨烯 出處:《武漢工程大學(xué)》2015年碩士論文 論文類型:學(xué)位論文
【摘要】:導(dǎo)電聚合物聚吡咯(PPy)以其易于合成,環(huán)境穩(wěn)定性較好,電導(dǎo)率高,氧化還原性能優(yōu)越,無毒無公害等特點(diǎn)已經(jīng)逐漸發(fā)展成為了導(dǎo)電高分子領(lǐng)域的熱門研究方向,這些優(yōu)異的特性使得它在傳感器,新能源電池,電磁屏蔽,金屬防腐等領(lǐng)域都有著廣泛的應(yīng)用。近幾年,多組分的聚吡咯復(fù)合材料層出不窮,可以通過多種功能材料的復(fù)合,實(shí)現(xiàn)多種材料與聚吡咯性能的互補(bǔ)與優(yōu)化,更大程度地發(fā)揮聚吡咯作為導(dǎo)電高分子的優(yōu)勢。本論文主要在以下三個(gè)方面進(jìn)行了探索研究:(1)通過磺化的方法增加石墨烯與碳納米管的水溶性,再用界面聚合法合成磺化石墨烯/磺化碳納米管/聚吡咯三組分復(fù)合材料,并對其形貌、結(jié)構(gòu)、性能等方面進(jìn)行表征測試,結(jié)果表明得到的磺化石墨烯和磺化碳納米管都具有良好的水溶性,并且復(fù)合材料的電化學(xué)性能相比單一組分有明顯的提高。(2)以軟模板法制備聚吡咯微米管,再用水熱還原法制備二氧化錳/碳納米管復(fù)合材料,最后使用得到的二氧化錳/碳納米管復(fù)合材料對聚吡咯微米管進(jìn)行改性處理。對得到的三組分復(fù)合材料的形貌、結(jié)構(gòu)、性能等方面進(jìn)行表征測試,結(jié)果表明得到的復(fù)合材料在電容量和電容保持率方面有著優(yōu)異的表現(xiàn),為其作為電極材料和電能存儲(chǔ)材料的應(yīng)用提供了可靠保證。(3)用甲基橙作為模板,過硫酸銨為氧化劑,在無外加酸的條件下合成了聚吡咯水海綿體。在800℃并且氮?dú)獗Wo(hù)的條件下對其進(jìn)行煅燒處理,得到具有碳?xì)饽z特性的氮摻雜碳納米管氣凝膠。對其微宏觀形貌,各類特性,結(jié)構(gòu)組成等進(jìn)行了表征測試。結(jié)果表明得到的氮摻雜碳納米管氣凝膠具有低密度,擁有一定強(qiáng)度,疏水親油,阻燃等特性,并且對于玫瑰紅、亞甲基藍(lán)、剛果紅等染料具有較好的吸附性能。最后通過電化學(xué)測試發(fā)現(xiàn)該氣凝膠在電容保持率方面表現(xiàn)優(yōu)異,同樣在電極材料和電能儲(chǔ)能材料的應(yīng)用方面有著很大的發(fā)展?jié)摿Α?br/>[Abstract]:The conductive polymer polypyrrole pyrrolidene has become a hot research direction in the field of conducting polymer due to its easy synthesis, good environmental stability, high conductivity, superior redox performance, non-toxic and non-pollution. These excellent properties make it widely used in sensor, new energy battery, electromagnetic shielding, metal anticorrosion and so on. In recent years, multicomponent polypyrrole composites have emerged in endlessly, which can be compounded by multi-functional materials. To realize the complementarity and optimization of the performance of polypyrrole and various materials, Polypyrrole as a conductive polymer to a greater extent. In this paper, we have explored the following three aspects: 1) increasing the water solubility of graphene and carbon nanotubes by sulfonation. The sulfonated graphene / sulfonated carbon nanotubes / polypyrrole composites were synthesized by interfacial polymerization. The morphology, structure and properties of the composites were characterized. The results show that both the sulfonated graphene and the sulfonated carbon nanotubes have good water solubility, and the electrochemical properties of the composites are obviously improved compared with the single component. 2) the polypyrrole micron tubes are prepared by soft template method. The manganese dioxide / carbon nanotube composites were prepared by hydrothermal reduction method. Finally, the polypyrrole micron tubes were modified by the manganese dioxide / carbon nanotube composites. The results show that the composite has excellent performance in capacitance and capacitance retention. It provides a reliable guarantee for its application as electrode material and electric energy storage material. It uses methyl orange as template and ammonium persulfate as oxidant. Polypyrrole sponges were synthesized under the condition of no addition of acid. After calcined at 800 鈩,
本文編號:1641124
本文鏈接:http://sikaile.net/kejilunwen/cailiaohuaxuelunwen/1641124.html
最近更新
教材專著