文献类型：期刊文献

中文题名：氧化热处理对聚苯胺/V_2O_5杂化材料结构和性能的影响

英文题名：Effect of Thermal Treatment under Oxygen on Structure and Properties of PAn/V_2O_5 Hybrid

作者：王琳[1];王庚超[1];李星玮[1];田晓慧[1]

机构：[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

年份：2004

卷号：17

期号：3

起止页码：437

中文期刊名：功能高分子学报

外文期刊名：Journal of Functional Polymers

收录：CSTPCD;;CSCD:【CSCD2011_2012】；

基金：上海市纳米技术专项项目(0352nm052);上海市重点学科建设项目资助.

语种：中文

中文关键词：氧化热处理;聚苯胺;五氧化二钒;纳米杂化材料;结构;电化学性能;锂离子电池

外文关键词：polyaniline; V_2O_5·nH_2O xerogel; hybrid;thermal treatment under oxygen; electrochemical properties

摘要：　采用原位氧化聚合法将聚苯胺分子链插入层状V2O5的片层中,制得了聚苯胺/五氧化二钒(PAn/V2O5)纳米杂化材料,并用氧气对杂化材料进行氧化热处理,用WAXD、FTIR、TGA、电导率及循环伏安测试等手段研究了氧化热处理对杂化材料结构与性能的影响。结果表明:氧化热处理对杂化材料的层状结构几乎没有影响,但将导致层间客体聚苯胺分子链上醌式结构的比重略有增加,降低了电子的离域能力,从而使得电导率略有下降,同时伴随着部分V4+氧化为V5+,使得嵌锂能力得到明显改善。
An intercalated hybrid nanocomposite consisting of vanadium pentoxide (V_2O_5) and polyaniline was prepared via in-situ intercalative polymerization. The effect of thermal treatment under oxygen on the structure and properties of PAn/V_2O_5 hybrid was investigated by using TGA, XRD, FTIR, UV-Vis, conductivity measurement and cyclic voltammetry. Results show that after thermal treatment under oxygen the quasi-crystalline layered structure of the matrix wasn't nearly changed, and some V^(4+) were oxided to V^(5+), which leaded to larger specific capacity although its conductivity became a little smaller.