^(60)Coγ射线辐照对聚苯胺/五氧化二钒纳米复合材料结构与性能的影响  

Effect of ^(60)Co γ-ray irradiation on structure and properties of polyaniline/V2O5 nanocomposite

作　　者：王庚超[1] 王琳[1] 李星玮[1] 李春忠[1] 

机构地区：[1]华东理工大学材料科学与工程学院超细材料制备与应用教育部重点实验室,上海200237

出　　处：《辐射研究与辐射工艺学报》2005年第5期266-269,共4页Journal of Radiation Research and Radiation Processing

基　　金：上海市纳米技术专项基金(0352nm052);国家自然科学基金重点项目(20236020);上海市基础研究重大项目(04DZ14002)资助

摘　　要：采用原位氧化聚合法将聚苯胺插入层状V2O5的片层中,制得了聚苯胺/五氧化二钒(PAn/V2O5)纳米复合材料,并借助热失重分析(Thermogravimetricanalysis,TGA)、傅立叶变换红外光谱(Fouriertransforminfraredspectra,FTIR)、X射线衍射(X-raydiffraction,XRD)、电导率及循环伏安测试等手段研究了60Coγ射线辐照对纳米复合材料结构与性能的影响。结果表明,60Coγ射线辐照可使V2O5片层间的低分子量的苯胺齐聚物转化为大分子量的聚苯胺,从而提高了纳米复合材料热稳定性;同时电化学性能也得到明显改善。且辐照对纳米复合材料的层状结构几乎没有影响。A nanocomposite consisting of vanadium pentoxide （V2O5） and polyaniline （PAn） was prepared by in-situ intercalative polymerization, and irradiation effects on structure and properties of the PAn/V2O5 nanocomposite have also been investigated by using thermogravimetric analysis, FT-IR, X-ray diffraction, conductivity measurement and cyclic voltammetry. The results show that irradiation is of advantage to improvement of thermal stability and specific capacity of PAn/V2O5 nanocomposite for rechargeable lithium batteries. However, irradiation has no effeet on interlayer spacing of V2O5 xerogel and crystalline size obviously.

关 键 词：聚苯胺 五氧化二钒干凝胶 纳米复合材料 ^60COΓ射线辐照 

分 类 号：O625.63[理学—有机化学] O614.51[理学—化学]