CAJ | 학술논문

通过用紫外-可见-近红外光谱、X射线光电子能谱及透射电镜等手段对采用反向胶束合成法,以二乙基磺基琥珀酸钠(AOT)形成的反胶束为模板制备出的导电聚合物聚3,4乙烯二氧噻吩(PEDOT)纳米粒子对HCl气体敏感性进行研究.沉积有纳米粒子的QCM器件对2.0×10~(-5)气体响应时间为20s,具有较好的响应恢复特性,能够有效探测低浓度(5×10~(-6))气体,气敏特性明显优于普通PEDOT粒子.
통과용자외-가견-근홍외광보、X사선광전자능보급투사전경등수단대채용반향효속합성법,이이을기광기호박산납(AOT)형성적반효속위모판제비출적도전취합물취3,4을희이양새분(PEDOT)납미입자대HCl기체민감성진행연구.침적유납미입자적QCM기건대2.0×10~(-5)기체향응시간위20s,구유교호적향응회복특성,능구유효탐측저농도(5×10~(-6))기체,기민특성명현우우보통PEDOT입자.
Based on a new type of conducting polymer poly (3,4-ethylenedioxythiophene) (PEDOT),this paper focused on the preparation and gas sensitivity of PEDOT nanostructure with reversed micelle method.PEDOT nanoparticles were characterized to gas sensitivity by different methods,such as ultraviolet/visible (UV-Vis) spectroscopy,X-ray photoelectron spectroscopy (XPS) and so on.The latest investigation of gas sensitivity of PEDOT nanoparticles to HCl gas was carried out,and it has been found that the response time of PEDOT nanoparticles deposited QCM to 2.0×10~(-5) HCl gas was about 20s and well reproducible sensitivity of QCM device was achieved.Furthermore,the nanoparticles exhibited well detecting ability to lower gas concentration (5×10~(-6)) than conventional one.