Structure and electrochemical behavior of ionic liquid analogue based on choline chloride and urea

• Published in: Electrochimica acta Vol. 65; pp. 30 - 36
• Main Authors: Yue, Duyuan, Jia, Yongzhong, Yao, Ying, Sun, Jinhe, Jing, Yan
• Format: Journal Article
• Language: English
• Published: Kidlington Elsevier Ltd 30.03.2012; Elsevier
• Subjects: Analogue; Chemistry; Chlorides; Choline; Choline chloride; Cyclic voltammetry; Electrochemical impedance spectroscopy; Electrochemistry; Electrodes; Exact sciences and technology; Fourier transforms; FTIR; General and physical chemistry; Infrared spectroscopy; Ionic liquids; Properties of electrolytes: conductivity; Urea; Ureas; Cyclic voltammetry; Choline chloride; Urea; FTIR; Electrochemical impedance spectroscopy; Infrared spectrometry; Fourier transformation; Electrolyte solution; Temperature effect; Electrochemical characteristic; Operating conditions
• ISSN: 0013-4686; 1873-3859
• DOI: 10.1016/j.electacta.2012.01.003

► First, we first reported the microstructure of the ionic liquid analogue based on choline chloride and urea. ► Second, both of the electrodes reactions were reported. Possible mechanisms for the formation of products were given. ► Third, the effect of temperature and cycle index on electrochemical behavior was discussed. The EIS was also discussed. In this paper the structure and electrochemical stability of ionic liquid analogue based on choline chloride and urea is reported. The microscopic structure of the ionic liquid analogue is preliminary investigated by Fourier transform infrared spectroscopy (FTIR). The cyclic voltammetry behavior of ionic liquid analogue is studied. The decomposition products of chlorine gas and triethylamine are observed. Possible mechanisms for the formation of these products are given. The effects of temperature and cycle index on electrochemical behavior are discussed. The electrochemical impedance spectroscopy behavior on pt electrode is investigated at temperature of 60°C, 80°C and 100°C ranging from 0.001 to 105Hz. The equivalent circuit diagram and the electrochemical element values are given.