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Tesakova MV, Kuzmin SM, Parfenyuk VI. An electrochemical quartz crystal microbalance study of 5,10,15,20-tetrakis(4-hydroxyphenyl)porphyrin electropolymerization process. J PORPHYR PHTHALOCYA 2020. [DOI: 10.1142/s1088424619501657] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/18/2022]
Abstract
The process of 5,10,15,20-tetrakis(4-hydroxyphenyl)porphyrin electropolymerization has been studied by the quartz crystal microbalance method in different electrodeposition conditions. The films were deposited in two modes: in potentiostatic conditions (at the potential of [Formula: see text]2 V) and in potentiodynamic conditions (CV with the potential scan rate of 20 mV/s). The effect of electrolysis parameters on 5,10,15,20-tetrakis(4-hydroxyphenyl)porphyrin electropolymerization has been studied by obtaining films in two modes and using two supporting electrolytes: tetrabutylammonium perchlorate or tetrabutylammonium hexafluorophosphate. The biggest film mass gain was observed on a clean electrode surface. At further film deposition on the polyporphyrin-coated electrode, the film mass growth stopped. The electrodeposition effectiveness was somewhat higher in the potentiodynamic conditions, with the formation of a looser film. The nature of the supporting electrolyte did not have a significant effect on the electrodeposition process. A significant contribution to the deposition was made by the electrode material. The film thickness was 25–80 nm. The films possessed [Formula: see text]-type conductivity; and the flat-band potential for poly-H[Formula: see text]T(4-OHPh)P obtained in potentiodynamic conditions was 0.33 V, for poly-H[Formula: see text]T(4-OHPh)P obtained in potentiostatic conditions it was 0.16 V.
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Affiliation(s)
- Mariya V. Tesakova
- G.A. Krestov Institute of Solution Chemistry of RAS, Akademicheskaya St., 1, Ivanovo, 153045, Russia
| | - Sergey M. Kuzmin
- G.A. Krestov Institute of Solution Chemistry of RAS, Akademicheskaya St., 1, Ivanovo, 153045, Russia
- Ivanovo State Power Engineering University, Rabfakovskaya St., 34, Ivanovo, 153003, Russia
| | - Vladimir I. Parfenyuk
- G.A. Krestov Institute of Solution Chemistry of RAS, Akademicheskaya St., 1, Ivanovo, 153045, Russia
- Ivanovo State University of Chemistry and Technology, Sheremetevsky Prospekt, 7, Ivanovo, 153000, Russia
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