Effect of Imidazole Ionic Liquids on the Electro-Oxidation of p-Methoxy Toluene

Authors

Qiong CHEN, State Key Laboratory Breeding Base of Green Chemistry Synthesis Technology, College of Chemical Engineering, Zhejiang University of Technology, Hangzhou 310032, China;
Ying-hong ZHU, State Key Laboratory Breeding Base of Green Chemistry Synthesis Technology, College of Chemical Engineering, Zhejiang University of Technology, Hangzhou 310032, China;
Ying ZHU, State Key Laboratory Breeding Base of Green Chemistry Synthesis Technology, College of Chemical Engineering, Zhejiang University of Technology, Hangzhou 310032, China;
Yan-fang LI, State Key Laboratory Breeding Base of Green Chemistry Synthesis Technology, College of Chemical Engineering, Zhejiang University of Technology, Hangzhou 310032, China;
Chun-an MA, State Key Laboratory Breeding Base of Green Chemistry Synthesis Technology, College of Chemical Engineering, Zhejiang University of Technology, Hangzhou 310032, China;

Corresponding Author

Chun-an MA(science@zjut.edu.cn)

Abstract

The interactions between four Imidazole ionic liquids (EMIMBF₄, BMIMBF₄, BMIMHSO₄, BMIMAc) and p-methoxy toluene were investigated by ultraviolet spectroscopy. The red shifts of absorption peak were obviously observed, and the fine structures of the spectroscopy were disappeared on the long wave district. p-MT producing stable excited state was benefit from the interaction with solvent molecules. The electro-oxidation behavious of p-MT were studied in the four ILs on platinum electrode by cyclic voltammetry (CV) and chronoamperometry (CP), and the diffusion coefficients (D) and activation energies (ED) were calculated. The results indicated that the electro-oxidation process of p-MT was irreversible and controlled by diffusion. The diffusion coefficient of p-MT and the selectivity of electrolytic product were maximum in EMIMBF4 compared to other ionic liquids.

Graphical Abstract

Keywords

ionic liquids, p-methoxy toluene, ultraviolet spectroscopy, electro-oxidation

DOI Link

https://doi.org/10.13208/j.electrochem.131029

Publication Date

2014-10-28

Online Available Date

2013-12-21

Revised Date

2013-12-16

Received Date

2013-10-29

Recommended Citation

Qiong CHEN, Ying-hong ZHU, Ying ZHU, Yan-fang LI, Chun-an MA. Effect of Imidazole Ionic Liquids on the Electro-Oxidation of p-Methoxy Toluene[J]. Journal of Electrochemistry, 2014 , 20(5): 465-469.
DOI: 10.13208/j.electrochem.131029
Available at: https://jelectrochem.xmu.edu.cn/journal/vol20/iss5/9