PANI的液晶模板合成及其对抗坏血酸电催化氧化  

Synthesis of Polyaniline Via Lyotropic Liquid Crystal Template Method and the Electrocatalytic Oxidation of Ascorbic Acid

作　　者：李明戈 谭德新 许诗咏 王婷 马若弘 王艳丽 LI Mingge;TAN Dexin;XU Shiyong;WANG Ting;MA Ruohong;WANG Yanli(Lingnan Normal University,College of Chemistry and Chemical Engineering,Zhanjiang,Guangdong 524048,China)

机构地区：[1]岭南师范学院,化学化工学院,广东湛江524048

出　　处：《塑料》2022年第6期146-151,共6页Plastics

基　　金：广东省科技创新战略专项基金(2018A01005)。

摘　　要：采用溶致液晶模板辅助化学氧化法合成了聚苯胺(PANI),研究了正戊醇含量对溶致液晶纹理及其PANI结构的影响。得到的PANI样品采用紫外光谱(UV-Vis)、红外光谱(FTIR)、X射线衍射(XRD)、场发射扫描电子显微镜(FESEM)等测试方法进行了表征,利用四探针测试仪对PANI电导率进行了测试,采用循环伏安法对PANI修饰玻碳电极对抗坏血酸(AH2)的催化氧化进行了研究。结果表明,当正戊醇含量为0.30 mL时,制得的溶致液晶模板形成的纹理为六角状液晶,以其为模板制备的PANI呈均一柱状结构,其电导率较高,其值为0.98 s/cm,其修饰电极在AH2中表现出了良好的电催化氧化性能。Polyaniline(PANI)was synthesized via lyotropic liquid crystal template assisted chemical oxidation method.The effects of the amount of n-pentanol on the liquid crystals texture and PANI structure were investigated.The samples were characterized by UV-Vis,FT-IR,XRD and FESEM.The electrical conductivity of PANI was tested by four-point-probe tester.The electrocatalytic oxidation of PANI modified glassy carbon electrode(GCE)for ascorbic acid(AH2)was studied by cyclic voltammetry.The results showed that hexagonal liquid crystal was obtained when the amount of 1-pentanol was 0.30 mL,and the PANI prepared by using this template had a uniform columnar structure and a high conductivity value of 0.98 s/cm.This PANI/GCE showed a good electrocatalytic oxidation performance for AH2.

关 键 词：溶致液晶 聚苯胺 抗坏血酸 电催化氧化 正戊醇 

分 类 号：TQ324.8[化学工程—合成树脂塑料工业]