| 离子液体[BDMIM]PF_6修饰碳糊电极的制备及其电化学性能 |
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| 引用本文： | 朱振中,杨东升,李景,林翰卿.离子液体[BDMIM]PF_6修饰碳糊电极的制备及其电化学性能[J].光谱实验室,2009,26(2):210-214. |
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| 作者姓名： | 朱振中 杨东升 李景 林翰卿 |
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| 作者单位： | 江南大学化学与材料工程学院,江苏省无锡市蠡湖大道1800号,241122 |
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| 摘 要： | 以离子液体1,2-二甲基-3-丁基咪唑六氟磷酸盐（BDMIM]PF6）代替传统液态石蜡为粘合剂与石墨粉相混合,制备了一种新型的离子液体修饰碳糊电极（IL/CPE）。采用扫描电子显微镜分别对其表面形貌和石蜡碳糊电极（CPE）表面形貌进行了表征。以亚铁氰化钾为电化学探针对IL/CPE的电化学行为进行了研究,并与CPE进行了比较。结果表明,BDMIM]PF6由于具有较高的导电性,使IL/CPE比CPE具有更高的导电效率,铁氰化钾在电极上的可逆性变好,ΔEP值变小,峰电流响应增加10倍,电极过程由CPE上的吸附控制变为扩散控制,根据计时库仑法求解出铁氰化钾的扩散系数为5.52×10^-6cm2/s（25℃）。电化学交流阻抗图亦表明与不导电的液态石蜡油相比,离子液体的存在加快了电子传递。
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| 关 键 词： | 1 2-二甲基-3-丁基咪唑六氟磷酸盐 离子液体 铁氰化钾 碳糊电极 化学修饰电极 |
Preparation and Electrochemical Characteristics of Ionic Liquid 1,2-Dimethyl-3-Butylimidazolium Hexafluorophosphate Modified Carbon Paste Electrode |
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| ZHU Zhen-Zhong,YANG Dong-Sheng,LI Jing,LIN Han-Qing.Preparation and Electrochemical Characteristics of Ionic Liquid 1,2-Dimethyl-3-Butylimidazolium Hexafluorophosphate Modified Carbon Paste Electrode[J].Chinese Journal of Spectroscopy Laboratory,2009,26(2):210-214. |
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| Authors: | ZHU Zhen-Zhong YANG Dong-Sheng LI Jing LIN Han-Qing |
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| Institution: | School of Chemical and Material Engineering;Jiangnan University;Wuxi;Jiangsu 241122;P.R.China |
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| Abstract: | A new kind of ionic liquid modified carbon paste electrode IL/CPE was constructed based on the substitute of paraffin with 1,2-dimethyl-3-butylimidazolium hexafluorophosphate(BDMIM]PF6) to mix with graphite powder.The surface morphologies of the IL/CPE were scanned by SEM.The electrochemical behaviors of the IL/CPE were investigated by using K4Fe(CN)6] as the probe and compared with carbon paste electrode CPE.The results showed that the electrochemical response of K4Fe(CN)6] was improved with the decreas... |
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| Keywords: | 1 2-Dimethyl-3-Butylimidazolium Hexafluorophosphate Ionic Liquid Potassium Ferricyanide Carbon Paste Electrode Chemical modified Electrode |
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