Chinese Journal of Applied Chemistry ›› 2019, Vol. 36 ›› Issue (1): 107-113.DOI: 10.11944/j.issn.1000-0518.2019.01.180041

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Construction and Characterization of a High Temperature Infrared Spectroelectrochemical Thin-Layer Cell

ZHU Yuna,HONG Liangb,JIN Baokanga*()   

  1. aSchool of Chemistry and Chemical Engineering,Anhui University,Hefei 230601,China
    bAnhui Vacree Technologies Co.,Ltd,Hefei 230088,China
  • Received:2018-02-08 Accepted:2018-05-28 Published:2019-01-01 Online:2019-01-04
  • Contact: JIN Baokang
  • Supported by:
    Supported by the National Natural Science Foundation of China(No.21175001, No.21375001)

Abstract:

In order to investigate electrochemical process at elevated temperature, a high temperature thin-layer cell(HTC) was constructed for in situ infrared(IR) spectroelectrochemistry. It works very well in the temperature range from ambient to 373 K(depend on boiling point of solvent) with the control precision within ±0.5 K to apply for room-temp and high-temp in situ IR spectroelectrochemistry. The cell can be facilely cleaned and conveniently manipulated in both aqueous and non-aqueous system. The electrochemical and IR performance were characterized with K3[Fe(CN)6] in aqueous and with benzoquinone(BQ) in ionic liquid BMIMPF6 by cyclic voltammetry and in situ IR spectroelectrochemistry at various temperature. Experimental results suggest that the cell has an excellent electrochemical performance within wider range of temperature, and good signal-noise ratio for IR absorption peaks during cyclic voltammetry(CV) scan. In conclusion, HTC has a promising application in electrochemical process in which the temperature plays an important role.

Key words: high temperature thin-layer cell, ionic liquid, benzoquinone, potassium ferricyanide, infrared spectroelectrochemistry