负载型离子液体在C-H键电氧化活化中的应用研究

CORC > 厦门大学 > 2017年第23卷

	负载型离子液体在C-H键电氧化活化中的应用研究; Application of Composite Ionic Liquid in Electro-oxidation Activation of a C-H Bond
	陈姿颖 ; 武倩倩 ; 张健青 ; 朱英红 ; 马淳安 ; CHEN Zi-ying ; WU Qian-qian ; ZHANG Jian-qing ; ZHU Ying-hong ; MA Chun-an
刊名	http://electrochem.xmu.edu.cn/CN/abstract/abstract10288.shtml
	2017-02-28
关键词	C-H键氧化离子液体/碳纳米管复合材料电氧化活化对甲氧基苯甲醛 the C-H bond oxidation ionic liquid / nano composite material Electro-oxidation activation p-methoxybenzaldehyde
英文摘要	本文将1-乙基-3-甲基咪唑醋酸盐离子液体修饰在多壁碳纳米管上，制备出离子液体/碳纳米管复合材料，并研究了对甲氧基甲苯（p-MT）在该复合离子液体水溶液体系中的电氧化性能. 同时，通过循环伏安法和计时电流法考查了扫描速率、温度、反应底物浓度等因素对电氧化性能的影响，研究了p-MT在该体系中的动力学过程. 实验结果表明，p-MT在复合离子液体水溶液体系中发生不可逆的电氧化反应，且该过程受扩散控制，扩散系数为7.69×10-10 cm2·s-1. 适当地升高温度和增大反应底物浓度都有利于促进p-MT中C-H键选择性电氧化为相应醛基，选择性可达到95%. 通过在不同结构电解槽中进行恒电位电解研究，发现离子液体/MWCNTs复合电解质在一室型电解槽中进行p-MT电氧化的电解效率更高、对目标产物对甲氧基苯甲醛（p-MBA）的选择性也更好.; In this paper, the ionic liquid/carbon nanotube composite material was prepared through modifying the ionic liquid 1-ethyl-3-methylimidazolium acetate to multi-walled carbon nanotubes. The electro-oxidation properties of p-methoxy toluene (p-MT) were studied using the composite as an electrolyte. The effects of scanning speed, temperature and substrate concentration were studied by cyclic voltammetry and chronoamperometry. The electrochemical kinetics of p-MT in this system was also studied. The results showed that the electrochemical oxidation of p-MT in the composite electrolyte solution was irreversible. The process was mainly controlled by diffusion, and the diffusion coefficient (D) was 7.69×10-10 cm2.s-1. Increasing the reaction temperature and the concentration of substrate could promote the electro-oxidation of the C-H bond to the corresponding aldehyde, and the selectivity of p-methoxybenzaldehyde (p-MBA) could improve to 95%. The electrolysis in one-pot was more efficiency and achieved better selectivity than that in the H-type.; 973前期研究专项（No. 2012CB722604）资助; 作者联系地址：浙江工业大学化学工程学院，绿色化学合成技术国家重点实验室培育基地，浙江杭州 310032; Author's Address: College of Chemical Engineering, Zhejiang University of Technology, Hangzhou 310014, China; 通讯作者E-mail：science@zjut. edu. cn
语种	中文
出版者	厦门大学《电化学》编辑部
内容类型	期刊论文
源URL	[http://dx.doi.org/10.13208/j.electrochem.160315]
专题	2017年第23卷
推荐引用方式 GB/T 7714	陈姿颖,武倩倩,张健青,等. 负载型离子液体在C-H键电氧化活化中的应用研究, Application of Composite Ionic Liquid in Electro-oxidation Activation of a C-H Bond[J]. http://electrochem.xmu.edu.cn/CN/abstract/abstract10288.shtml,2017.
APA	陈姿颖.,武倩倩.,张健青.,朱英红.,马淳安.,...&MA Chun-an.(2017).负载型离子液体在C-H键电氧化活化中的应用研究.http://electrochem.xmu.edu.cn/CN/abstract/abstract10288.shtml.
MLA	陈姿颖,et al."负载型离子液体在C-H键电氧化活化中的应用研究".http://electrochem.xmu.edu.cn/CN/abstract/abstract10288.shtml (2017).