An Electrochemical Investigation of p-sulfophenylazo Calix[4]arene in a Buffer Solution

Authors

YANG Xing, School of Chemistry and Materials Science, Liaoning Shihua University, Fushun 113001, Liaoning, China;
CHEN Ping, School of Chemistry and Materials Science, Liaoning Shihua University, Fushun 113001, Liaoning, China;Follow

Corresponding Author

CHEN Ping(chenping-fs@sohu.com)

Abstract

The p-sulfophenylazo calix[4]arene was synthesized through the diazotization-coupling reaction between calix[4]arene and p-aminobenzene sulfonic acid. The UV-Vis spectroscopy, Infrared spectroscopy, and nuclear magnetic resonance (NMR) were used to characterize the as-prepared p-sulfophenylazo calix[4]arene. The electrochemical behaviors of p-sulfophenylazo calix[4]arene were investigated by cyclic voltammetry and chronoamperometry using CH₃COOH-CH₃COONa as a buffer solution. The result shows that the p-sulfophenylazo calix[4]arene exhibited a pair of redox peaks in a scan potential region of -0.5 ~ 1 V. The oxidation and reduction peak potentials were 0.302 V and -0.003 V, respectively, and changed with the scanning rates. In addition, the electrode reaction was studied by various electrochemical methods, and the kinetic parameters have also been obtained. The activation energy was found to be 14.84 kJ•mol^-1.

Graphical Abstract

Keywords

sulfophenylazo calix[4]arene, cyclic voltammetry, glassy carbon electrode, electrochemical behavior

DOI Link

https://doi.org/10.13208/j.electrochem.150604

Publication Date

2016-02-29

Online Available Date

2015-10-19

Revised Date

2015-10-14

Received Date

2015-06-04

Recommended Citation

YANG Xing, CHEN Ping. An Electrochemical Investigation of p-sulfophenylazo Calix[4]arene in a Buffer Solution[J]. Journal of Electrochemistry, 2016 , 22(1): 37-42.
DOI: 10.13208/j.electrochem.150604
Available at: https://jelectrochem.xmu.edu.cn/journal/vol22/iss1/4