聚苯胺纳米线/聚丙烯酸层层组装及其电化学传感性能研究  

Layer-by-layer assembly of polyaniline nanofibers/poly(acrylic acid) multilayer film and electrochemical sensing

作　　者：胡志超[1] 许婧婧[1] 田媛[1] 彭如[1] 鲜跃仲[1] 冉琴[1] 金利通[1] 

机构地区：[1]华东师范大学化学系,上海200062

出　　处：《化学传感器》2009年第2期25-30,共6页Chemical Sensors

基　　金：国家自然科学基金(No20875031);上海市教委科研创新项目(No08ZZ25)资助

摘　　要：该文通过层层组装技术实现了聚苯胺纳米线(PANI)与聚丙烯酸(PAA)可控固载,组装过程通过紫外可见光谱(UV-vis),扫描电镜(SEM)以及电化学方法进行了表征。实验表明,纳米结构的PANI和PAA的多层复合膜性质稳定,PAA能够掺杂在纳米结构的PANI中并能有效的使其在中性pH条件下保持电化学活性,并且对过氧化氢(H2O2)有着非常好的电催化活性。In this paper, layer-by-layer assembly technique was used to immoblize Polyaniline （PANI） nanofibers and poly （acrylic acid） （PAA）. The assembly process was characterized by UV-Vis, SEM and electrochemistry. The obtained nanostructured PANI/PAA multilayer films are very stable. PAA inside the multilayer film can dope nanostructured PANI effectively and shift its electroactivity to a neutral pH environment. Moreover, the multilayer film shows high electrocatalytic ability toward H2O2, which makes it an ideal substrate for H2O2 detection and offers great promise for biosensing.

关 键 词：聚苯胺纳米线 聚丙烯酸 层层组装 电化学传感器 

分 类 号：TB383.1[一般工业技术—材料科学与工程]