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通过氯气吸附,制备了掺氯多壁碳纳米管(Cl2-MWNTs)复合材料,在低温、高温和紫外光照射条件下掺氯,紫外光照射下掺氯制备的复合材料电导率最高,和未掺氯MWNTs相比,电导率提高到原来的5倍以上.用热重、红外吸收光谱、紫外-可见吸收光谱、拉曼光谱和X光电子能谱分析研究掺氯碳纳米管中氯和MWNTs间的相互作用,结果表明:掺氯后MWNTs中π电子向氯转移,氯与MWNTs形成共轭体系,π电子的离域性增强,提高了复合材料的电导率.
Chloride-doped multi-walled carbon nanotubes (Cl2-MWNTs) composites were prepared by chlorine adsorption. Chloride was doped under low temperature, high temperature and UV irradiation. The composite doped with chlorine under UV irradiation had the highest conductivity, Compared with the doped MWNTs, the conductivity increased to more than 5 times.The thermal decomposition, IR, UV-Vis, Raman and XPS were used to study the interaction between chlorine and MWNTs The results show that the π electrons of MWNTs transfer to chlorine and the conjugates of chlorine and MWNTs form. The π-electron delocalization increases and the conductivity of the composite increases.