INVESTIGADORES
VAZQUEZ marcela Vivian
artículos
Título:
The electrochemical reduction of hydrogen peroxide on polycrystalline copper in borax buffer peroxide M.
Autor/es:
M.V. VAZQUEZ; S.R. DE SANCHEZ; E.J. CALVO; D.J. SCHIFFRIN
Revista:
JOURNAL OF ELECTROANALYTICAL CHEMISTRY
Editorial:
ELSEVIER
Referencias:
Año: 1994 vol. 24 p. 1153 - 1157
ISSN:
0022-0728
Resumen:
The electrochemical reduction of hydrogen peroxide on copper electrodes in a borax buffer has been studied. The effects of surfaceoxidation and chloride ions in the electrolyte have been investigated. Hydrogen peroxide can be electrochemically reduced on Cu(1)oxidized surfaces. In the absence of chloride, the reduction is catalysed by a redox cycle involving the Cu(I)/Cu(II) couple. Inchloride-containing solutions, the surface oxides are dissolved and the reduction becomes more irreversible. There appears to be achange in the reduction mechanism at potentials more negative than -0.45 V.
