基于电沉积技术构建聚苯胺/海藻酸膜及电化学性能研究  

Constructing Polyaniline/Alginate Film by Electrodeposition and Its Electrochemical Properties

作　　者：殷洁 胡云涛 刘慧 杨逸霏 王艺峰[1] YIN Jie;HU Yuntao;LIU Hui;YANG Yifei;WANG Yifeng(School of Materials Science and Engineering,Wuhan University of Technology,Wuhan 430070,China)

机构地区：[1]武汉理工大学材料科学与工程学院,武汉430070

出　　处：《材料研究学报》2022年第4期314-320,共7页Chinese Journal of Materials Research

基　　金：武汉理工大学自主创新研究基金(206601005);国家级大学生创新创业训练计划(202010497011)。

摘　　要：基于电沉积技术的方法在电极表面构建聚苯胺(PANI)/海藻酸膜,直接构建PANI/海藻酸修饰电极,结合了海藻酸的阳极电沉积和苯胺的电化学聚合,具有条件温和以及后处理简便的特点。PANI/海藻酸膜呈现出与PANI类似的深绿色,其不仅可以稳定的存在于电极表面,而且还可以从电极表面取下来作为独立的膜材料。X射线衍射、红外光谱以及扫描电镜的测试结果均表明利用电沉积技术在电极表面制备得到了PANI/海藻酸膜。电化学性能分析结果表明,与PANI修饰电极相比,PANI/海藻酸修饰电极的电荷转移电阻更小,具备更高的电化学电容、更好的电荷储存能力和循环稳定性。A PANI/alginate modified glass electrode was prepared via a two-step electrodeposition approach.This approach combines the anodic electrodeposition of alginate with the electrochemical polymerization of aniline,which has many advantages such as convenient operation and simple post-treatment.The prepared PANI/alginate film presents dark green coloration similar to that of PANI.The PANI/alginate film is not only stable on the surface of the electrode,but also it can be detached completely from the electrode to be used as an independent film.The results from FTIR,XRD and SEM suggest that PANI and alginate do exist in the prepared film.The results of electrochemical performance analysis show that in comparison with the simple PANI modified electrode,the PANI/alginate modified electrode has higher electrochemical capacitance,better electrochemical stability,lower charge transfer resistance,better charge storage capacity and cycle stability.Thus,the PANI/alginate film modified electrode prepared by electrodeposition approach has promising application prospect as electrode material for capacitors.

关 键 词：有机高分子材料 聚苯胺/海藻酸膜 电沉积技术 电化学性能 

分 类 号：O636[理学—高分子化学]