聚吡咯纳米球负载金纳米粒子的制备及其性能研究  

Synthesis and performance of Au nanoparticles supported polypyrrole nanospheres

作　　者：陈圆[1] 葛晓艳 宋根萍[2] CHEN Yuan;GE Xiao-yan;SONG Gen-ping(School of Animal Pharmaceuticals,Jiangsu Agri-animal Husbandry Vocational College,Taizhou 225300,China;School of Chemistry and Chemical Engineering,Yangzhou University,Yangzhou 225002,China)

机构地区：[1]江苏农牧科技职业学院动物药学院,江苏泰州225300 [2]扬州大学化学化工学院,江苏扬州225002

出　　处：《化学研究与应用》2023年第4期948-954,共7页Chemical Research and Application

基　　金：江苏省高等职业院校教师专业带头人高端研修项目资助(2016GRFX023)。

摘　　要：在水溶液中以表面活性剂F127形成的胶束为模板制备聚吡咯纳米球,考察了温度、吡咯浓度、pH等因素对聚吡咯纳米球形貌的影响,提出F127体系中聚吡咯纳米球的形成机理。利用聚吡咯与氯金酸之间的氧化还原活性,在聚吡咯纳米球表面成功负载金纳米粒子,研究温度和吡咯浓度对聚吡咯/金复合材料形貌的影响,运用透射电子显微镜、傅里叶红外光谱、X射线衍射、拉曼光谱、循环伏安等对其形貌、结构、性能进行研究。结果表明,所制得的负载金纳米粒子的聚吡咯复合材料具有明显的拉曼增强效应,可用于分析复合材料中聚合物的分子结构;此外该复合材料在酸性条件下具有较好的电化学稳定性,可应用于修饰电极。Polypyrrole(Ppy)nanospheres have been synthesized in the solution by using the micelles formed by block copolymer nonionic surfactant F127 as a template.The effects of temperature,polypyrrole concentration,and pH on the morphology of Ppy nanospheres were studied and the formation mechanisms were proposed.PpY/Au composites have been fabricated through the growth of Au nanoparticles on surfaces of Ppy nanospheres thanks to the redox activity between Ppy and HAuCl4.The effects of temperature and pyrrole concentration on the morphology of PpY/Au composites were studied.The morphology,structure and properties were characterized by transmission electron microscopy,Fourier transform infrared spectroscopy,X-ray diffraction,Roman spectroscopy,and cyclic voltammetry.The results show that the Ppy/Au composites have obvious Raman enhancement effect,which can be used to analyze the molecular structure of the polymers in the composites.In addition,the PPY/Au composites have good electrochemical stability under acidic conditions and can be used to modify electrodes.

关 键 词：聚吡咯 金纳米粒子 复合材料 表面活性剂 

分 类 号：O614.1[理学—无机化学]