脉冲电化学法制备“海绵状”聚苯胺  

Pulse electrochemical synthesis of sponge-like polyaniline

作　　者：张怡[1] 孙俊[2] 毕红[2] 

机构地区：[1]安徽省科技研究开发中心,安徽合肥230088 [2]安徽大学化学化工学院,安徽合肥230039

出　　处：《安徽大学学报（自然科学版）》2011年第4期74-78,共5页Journal of Anhui University(Natural Science Edition)

基　　金：国家自然科学基金资助项目(50772001);高等学校博士学科点专项科研基金资助项目(20093401110003);安徽大学杰出青年培育基金资助项目(KJJQ006)

摘　　要：采用脉冲电化学法,以盐酸为掺杂剂,在ITO导电玻璃上电沉积制备＂海绵状＂疏松结构的聚苯胺（PANI）材料,通过SEM、FTIR以及UV-vis对合成的产物进行表征.结果表明：该疏松结构的材料主要是由直径60 nm左右的PANI纳米纤维组成,其表面有很多50~200 nm的PANI纳米颗粒,最后得到的产物是掺杂态EB结构的PANI.文中对这种结构产物的形成机理进行了初步探讨.Sponge-like polyaniline（PANI） microstructures have been synthesized by using pulse electrochemical method in the presence of HCl as a dopant.The products were characterized by SEM,FTIR and UV-vis spectroscopy.The results indicated that the sponge-like microstructures are composed of large quantity of PANI nanofibers which are about 60 nm in diameter and inter-connected by 50-200 nm nanoparticles on the surface of substrate.The molecular structure of the synthesized PANI product is identical to that of the emeraldine base（EB） form.Moreover,a possible formation mechanism of the sponge-like microstructures has also been discussed.

关 键 词：脉冲电化学法 聚苯胺 纳米纤维 纳米颗粒 

分 类 号：O631.5[理学—高分子化学]