一种新型离子液体修饰碳糊电极的制备与性能表征  

Preparation of A New Kind Ionic Liquid Modified Carbon Paste Electrode and Characterization

作　　者：吴思远[1] 闫丽君[1] 牛燕燕[1] 凌昭星[1] 李奕良[1] 甄超[1] 孙伟[1] 

机构地区：[1]海南师范大学化学与化工学院,海南海口571158

出　　处：《海南师范大学学报（自然科学版）》2016年第3期282-285,共4页Journal of Hainan Normal University（Natural Science）

基　　金：海南省自然科学基金(20152016);国家自然科学基金(21365010)

摘　　要：用离子液体1-丁基-2,3-二甲基咪唑四氟硼酸盐为修饰剂与石墨粉和石蜡相混合后制成一种新型离子液体修饰碳糊电极(IL-CPE),采用扫描电镜表征了电极的表面形貌.利用铁氰化钾溶液作为电化学指示探针对该IL-CPE的电化学行为进行了研究,结果与碳糊电极(CPE)进行比较.实验表明该IL-CPE具有高导电性,电流响应显著增加且电极反应可逆性变好;同时离子液体的高粘度使制成的电极具有更佳的机械强度.对该修饰电极的有效面积、电容和制备重现性等参数进行了研究.Ionic liquid 1-butyl-2,3-dimethylimidazolium tetrafluoroborate was used as the modifier and the binder, which was mixed with carbon powder to prepare a new kind of ionic liquid modified carbon paste electrode（IL-CPE）. The surface morphorography of IL-CPE was characterized by scanning electron microscopy. By using ferricyanide solution as the electrochemical probe, the electrochemical behaviors of IL-CPE were investigated and the results were compared with those of CPE. The presence of IL in CPE resulted in high conductivity with the electrochemical response increased greatly. Also, the high viscosity of IL provided excellent mechanical strength of the modified electrode. The effective surface area, capacitance and the preparation reproducibility of IL-CPE were investigated.

关 键 词：离子液体 1-丁基-2 3-二甲基咪唑四氟硼酸盐 碳糊电极 电化学 

分 类 号：O657[理学—分析化学]