Impact of addition sheet-like cobalt in ionic liquids mixture to detect oxygen

Ying Liu; Jingyuan Liu; Hao Qin; Qi Liu; Zhanshuang Li; Rongrong Chen; Rumin Li; Hongquan Zhang; Jun Wang

doi:10.1016/j.talanta.2017.05.029

Impact of addition sheet-like cobalt in ionic liquids mixture to detect oxygen

Talanta. 2017 Sep 1:172:182-185. doi: 10.1016/j.talanta.2017.05.029. Epub 2017 May 11.

Authors

Ying Liu¹, Jingyuan Liu², Hao Qin³, Qi Liu¹, Zhanshuang Li¹, Rongrong Chen¹, Rumin Li¹, Hongquan Zhang⁴, Jun Wang⁵

Affiliations

¹ Key Laboratory of Superlight Material and Surface Technology, Ministry of Education, Harbin Engineering University, 150001, PR China; College of Materials Science and Chemical Engineering, Harbin Engineering University, 150001, PR China.
² Key Laboratory of Superlight Material and Surface Technology, Ministry of Education, Harbin Engineering University, 150001, PR China; College of Materials Science and Chemical Engineering, Harbin Engineering University, 150001, PR China. Electronic address: liujingyuan1004@hrbeu.edu.cn.
³ Key Laboratory of Superlight Material and Surface Technology, Ministry of Education, Harbin Engineering University, 150001, PR China; The 49th Research Institute, China Electronic Technology Group, Harbin 150001, PR China.
⁴ College of Automation, Harbin Engineering University, 150001, PR China.
⁵ Key Laboratory of Superlight Material and Surface Technology, Ministry of Education, Harbin Engineering University, 150001, PR China; College of Materials Science and Chemical Engineering, Harbin Engineering University, 150001, PR China. Electronic address: zhqw1888@sohu.com.

PMID: 28602293
DOI: 10.1016/j.talanta.2017.05.029

Abstract

The incorporation of 1-alkyl-3-methylimidazolium hexafluorophosphate (AMIMPF₆) and 1-vinlyimidazole (VIM) firstly served as electrolyte for oxygen sensor, which remarkably promoted response current. Moreover, the sheet-like structure of cobalt was deposited onto the surface of C@TiC nanowire (Co/C), which endowed the imidazole-based ionic liquid electrolyte with plentiful active sites and fast electron transfer rate for oxygen reduction reaction. There was little literature about the integration of AMIMPF₆, VIM and Co/C as the electrolyte for oxygen sensor. The synergistic effect among all components was realized and maximized, leading to a superior performance of oxygen sensing compared to any component alone. The most important was that the composite material showed a fast response towards oxygen with an excellent linear relationship.

Keywords: Cyclic voltammetry; Ionic liquids; Oxygen sensor; Sheet-like cobalt.