Ionic Liquid-Supported TEMPO/Polymeric Ionic-liquid/Carbon Black Ternary Composites: Preparations and Applications in Electrochemical Oxidation of Alcohols

Authors

Xin LIN, School of Chemistry, biology & Materials Science, East China University of Technology, Nanchang 330013;
Cao-cao SUN, Collage of Life Science & Bioengineering, Beijing University of Technology, Beijing 100124;
Zhi-rong LIU, School of Chemistry, biology & Materials Science, East China University of Technology, Nanchang 330013;
Cheng-chu ZENG, Collage of Life Science & Bioengineering, Beijing University of Technology, Beijing 100124;Follow

Corresponding Author

Cheng-chu ZENG(zengcc@bjut.edu.cn)

Abstract

To effectively recover redox catalyst and supporting electrolyte, a novel ternary composite consisting of ionic liquid-supported TEMPO, polymeric ionic-liquid and carbon black was prepared. The ionic-liquid supported redox catalyst TEMPO-IL-BF₄ was firstly synthesized from 4-hydroxy-2,2,6,6-tetramethylpiperidine-N-oxyl, and followed by the reaction of polydimethyldiallylammonium chloride (PDDA) and bis(trifluoromethane)sulfonimide lithium salt (LiTFSI) to form poly[diallyldimethylammonium bis(trifluoromethanesulfonyl)imide] (PDDA(Tf₂N)). A combination of the above mentioned two synthesized materials and carbon black afforded to obtain the ternary composite, which was used as the recoverable supporting electrolyte and mediator for the electrochemical oxidation of alcohol. The results indicate that various alcohols could be oxidized efficiently to the corresponding aldehydes or ketones with the more than 80% yields in the presence of the ternary composite under electrochemical conditions. In addition, the composite could be recovered with 95% recovery after being used for 4 times in experiments. The development of the ternary composite provides an efficient and sustainable approach for the recovery of supporting electrolyte and redox catalyst.

Graphical Abstract

Keywords

ionic liquid-supported TEMPO as redox catalyst, polymeric ionic liquid, recoverable ternary composite

DOI Link

https://doi.org/10.13208/j.electrochem.161051

Publication Date

2017-06-29

Online Available Date

2017-03-02

Revised Date

2017-02-13

Received Date

2016-11-15

Recommended Citation

Xin LIN, Cao-cao SUN, Zhi-rong LIU, Cheng-chu ZENG. Ionic Liquid-Supported TEMPO/Polymeric Ionic-liquid/Carbon Black Ternary Composites: Preparations and Applications in Electrochemical Oxidation of Alcohols[J]. Journal of Electrochemistry, 2017 , 23(3): 322-326.
DOI: 10.13208/j.electrochem.161051
Available at: https://jelectrochem.xmu.edu.cn/journal/vol23/iss3/8