| 离子液体中间硝基苯酚在玻碳电极上的电化学还原行为研究 |
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| 引用本文： | 王欢,叶小鹤,陈黎明,陆嘉星,何鸣元. 离子液体中间硝基苯酚在玻碳电极上的电化学还原行为研究[J]. 高等学校化学学报, 2005, 26(2): 326-329 |
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| 作者姓名： | 王欢 叶小鹤 陈黎明 陆嘉星 何鸣元 |
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| 作者单位： | 华东师范大学化学系, 上海市绿色化学与化工过程绿色化重点实验室, 上海 200062 |
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| 基金项目： | 国家重点基础研究发展计划(973计划) |
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| 摘 要： | 在[EMIM]Br体系中,以玻碳为工作电极,铂丝为辅助电极,饱和甘汞电极为参比电极,研究了间硝基苯酚的电化学行为.采用循环伏安法和计时电量法,研究了扫描速度、温度和底物浓度等因素对其电化学行为的影响,求得扩散系数D为9.184×10-7cm2/s,传递系数α为0.37,证明了在[EMIM]Br体系中,此反应是受扩散控制的不可逆反应.
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| 关 键 词： | 溴化1-乙基-3-甲基咪唑([EMIM]Br) 循环伏安法 计时电量法 间硝基苯酚 |
| 文章编号： | 0251-0790(2005)02-0326-04 |
| 收稿时间： | 2004-02-19 |
Electrochemical Reduction Behavior of m-Nitrophenol on GC Electrode in Ionic Liquid [EMIM]Br |
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| WANG Huan,YE Xiao-He,CHEN Li-Ming,LU Jia-Xing,HE Ming-Yuan. Electrochemical Reduction Behavior of m-Nitrophenol on GC Electrode in Ionic Liquid [EMIM]Br[J]. Chemical Research In Chinese Universities, 2005, 26(2): 326-329 |
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| Authors: | WANG Huan YE Xiao-He CHEN Li-Ming LU Jia-Xing HE Ming-Yuan |
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| Affiliation: | Shanghai Key Laboratory of Green Chemistry and Chemical Process, Department of Chemistry, East China Normal University, Shanghai 200062, China |
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| Abstract: | The direct electrochemical reduction of m-nitrophenol on GC electrode was investigated in ionic liquid(IL), 1-ethyl-3-methylimidazolium bromide([EMIM]Br) by using cyclic voltammetry and chronocoulometry. The diffusion coefficient D of m-nitrophenol in [EMIM]Br was 9.184×10-7 cm2/s, while the transfer coefficient was 0.37. It can be proved that the reduction of m-nitrophenol on GC electrode was an irreversible process and the electrode reaction was diffusion-controlled by cyclic voltammetry. |
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| Keywords: | 1-Ethyl-3-methylimidazolium bromide([EMIM]Br) Cyclic voltammetry Chronocoulometry m-Nitrophenol |
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