| ［BMIM］BF4中马来酸在Pt上的电化学还原和原位红外光谱 |
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| 引用本文： | 陈声培,楼乔奇,陈燕鑫,孙世刚.［BMIM］BF4中马来酸在Pt上的电化学还原和原位红外光谱[J].化工学报,2008,59(Z1):25-29. |
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| 作者姓名： | 陈声培 楼乔奇 陈燕鑫 孙世刚 |
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| 作者单位： | 厦门大学固体表面物理化学国家重点实验室;化学化工学院化学系 |
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| 基金项目： | 国家自然科学基金项目(20833005,20873113)。~~ |
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| 摘 要： | 采用循环伏安法(CV)、计时电量法(CA) 和电化学原位红外反射光谱 (in situ FTIRS)，从分子水平上研究了离子液体［BMIM］BF4中马来酸在Pt电极上的电化学还原过程。结果表明，［BMIM］BF4中马来酸在Pt电极上的还原是受扩散控制的准可逆过程，测得扩散系数为1.0×10-7cm2·s-1;in situ FTIRS研究发现，［BMIM］BF4中马来酸在Pt电极上的还原发生在其中的一个羧基位上,即马来酸首先获得一个电子生成阴离子自由基，随后再获得一个电子生成二价阴离子。
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| 关 键 词： | 室温离子液体 马来酸 电化学还原 电化学原位红外光谱 |
| 收稿时间： | 2008-11-14 |
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Electrochemical and in situ FTIRS of maleic acid reduction in [BMIM]BF4 on Pt electrode |
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| CHEN Shengpei,LOU Qiaoqi,CHEN Yanxin,SUN Shigang.Electrochemical and in situ FTIRS of maleic acid reduction in [BMIM]BF4 on Pt electrode[J].Journal of Chemical Industry and Engineering(China),2008,59(Z1):25-29. |
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| Authors: | CHEN Shengpei LOU Qiaoqi CHEN Yanxin SUN Shigang |
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| Affiliation: | CHEN Shengpei,LOU Qiaoqi,CHEN Yanxin,SUN Shigang (State Key Laboratory for Physical Chemistry of Solid Surfaces,College of Chemistry , Chemical Engineering,Department of Chemistry,Xiamen University,Xiamen 361005,Fujian,China) |
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| Abstract: | Electrochemical reduction of maleic acid in the ionic liquid was studied by cyclic voltammetry (CV), chronoamperometry (CA) and in situ FTIR spectroscopyThe results demonstrated that the reduction of maleic acid on Pt electrode is a quasireversible process controlled by diffusionThe diffusion coefficient of maleic acid is determined to be 1.0×10-7cm2·s-1In situ FTIRS results illustrated that the reduction of maleic acid in ionic liquids occurs on the carboxylThe first step is to generate radical anions, which are reduced to aldehyde species |
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| Keywords: | room-temperature ionic liquids maleic acid electrochemical reduction in situ FTIR spectroscopy |
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