Scientific article

Preparation, characterization and application of an electrode modified with electropolymerized CuPtBr6 film

Published inElectrochimica acta, vol. 45, no. 10, p. 1581-1593
Publication date2000-01

We report the electropolymerization of CuPtBr6 film on the electrode substrate by cyclic scanning in 3×10−3 M CuCl2+3×10−3 M K2PtBr6+1 M KCl in the potential range from +700 to −800 mV (versus the saturated calomel electrode (SCE)). Several surface analysis techniques were used to characterize the film on the electrode surface. A sharp and intense diffraction peak in the X-ray diffraction (XRD) pattern indicates that the film has a high preferential orientation. The electrochemical behavior of the modified electrode was studied in detail in electrolyte solutions containing various cations. On the basis of these studies, a mechanism of electropolymerization was proposed which suggests for the modifier film a one-dimensional, polymeric structure formed from a negatively charged platinum compound, stabilized by Cu2+ and Cu+ as the counter ions. The composition of the modified film is proposed to be [CuPtBr6·CuPtBr4]n, and is denoted as CuPtBr6/glassy carbon (GC) to highlight the starting components. H+/H, Fe3+/Fe2+ and Cr3+/Cr2+ display remarkably reversible redox behaviors at the CuPtBr6/GC electrode. The modified electrode also displays good catalytic activity toward the oxidation of ascorbic acid, hydrogen peroxide, S2O32−, and especially nitric oxide.

  • CME
  • CuPtBr6
  • Electropolymerization
  • Electrocatalysis
Citation (ISO format)
PEI, Jianhong, LI, Xiao-yuan, BUFFLE, Jacques. Preparation, characterization and application of an electrode modified with electropolymerized CuPtBr<sub>6</sub> film. In: Electrochimica acta, 2000, vol. 45, n° 10, p. 1581–1593. doi: 10.1016/S0013-4686(99)00323-0
Main files (1)
Article (Published version)
ISSN of the journal0013-4686

Technical informations

Creation11/18/2022 11:10:00 AM
First validation11/18/2022 11:10:00 AM
Update time03/16/2023 8:58:37 AM
Status update03/16/2023 8:58:36 AM
Last indexation08/31/2023 10:06:40 AM
All rights reserved by Archive ouverte UNIGE and the University of GenevaunigeBlack