基于电化学合成法的活性炭-铅笔芯电极表面聚苯胺电磁性能研究  

Electromagnetic Properties of Polyaniline on the Surface of Activated Carbon-Pencil Core Electropolar Based on Electrochemical Synthesis

作　　者：刘转利[1] LIU Zhuan-li(Baoji Vocational Technology College,Baoji 721013,Shaanxi,china)

机构地区：[1]宝鸡职业技术学院,陕西宝鸡721013

出　　处：《合成材料老化与应用》2020年第2期80-83,共4页Synthetic Materials Aging and Application

摘　　要：为优化聚苯胺(PANI)电磁性能,基于活性炭-铅笔芯电极(AC-PEC)表层,通过电化学合成法的循环伏安法,以荷电量完善制备准备工作,从而生成聚苯胺-活性炭(PANI-AC)复合材料。结果表明,带有0.22mol/L苯胺的0.32mol/L H2SO4与0.22mol/L KCl共同储放于溶液,基于0.05V/s扫描速度,连续扫描8圈,以及75mg/mL活性炭分散液质量浓度,1.52cmAC-PEC长度条件下,PANI-AC荷电量最高,稳定状态最佳,而核-壳结构导电性能良好;与PANI、AC相比,PANI-AC阻抗性明显偏低,且面向7.46GHz-15.14GHz电磁波有着差异性吸收,吸波范围较宽;电化学合成法制备复合材料,流程简洁,条件容易控制,产物不需分离提纯,并能实现聚苯胺掺杂,以优化其电化学性能。To optimize the electromagnetic properties of polyaniline(PANI), based on the activated carbon-pencil core electrode(AC-PEC) surface layer, the preparation of polyaniline-activated carbon(PANI-AC) composite was improved by cyclic voltammetry by electrochemical synthesis. The results showed that 0.32 mol/L H2SO4 with 0.22 mol/L aniline was stored in the solution together with 0.22 mol/L KCL, based on 0.05 V/s scanning speed, continuous scanning 8 laps, and 75 mg/mL activated carbon dispersive liquid mass concentration, under the condition of 1.52 cm AC-PEC length, the charge of PANI-AC was the highest, the stable state was the best, while the core-shell structure had good electrical conductivity. Compared with PANI and AC, the PANI-AC impedance was obviously biased, and oriented to 7.46~15.14 GHz with different electromagnetic wave absorption, absorbing range, and wide electrochemical range. The composite material was prepared by synthetic method, which was easy to control the product without need to be separated and can be optimized for electrochemical doping.

关 键 词：电化学合成法 活性炭-铅笔芯 电极表面 聚苯胺 电磁性能 

分 类 号：TB332[一般工业技术—材料科学与工程]