| Revista: | Materials research |
| Base de datos: | PERIÓDICA |
| Número de sistema: | 000312469 |
| ISSN: | 1516-1439 |
| Autores: | Goncalves, Reinaldo Simoes1 Azambuja, Denise Schermann Lucho, Alzira Maria Serpa Reche, Marlisa Piovesan Schmidt, Annelise M |
| Instituciones: | 1Universidade Federal do Rio Grande do Sul, Instituto de Quimica, Porto Alegre, Rio Grande do Sul. Brasil |
| Año: | 2001 |
| Volumen: | 4 |
| Número: | 2 |
| Paginación: | 97-101 |
| País: | Brasil |
| Idioma: | Inglés |
| Tipo de documento: | Artículo |
| Enfoque: | Descriptivo |
| Resumen en inglés | This paper discusses the electrochemical behavior of copper, nickel and a copper/nickel alloy in aerated aqueous 0.10 and 1.0 mol L-1 sodium acetate. The data obtained from different electrochemical techniques were analyzed to determine the influence of Ni and Cu on the electrochemical processes of the alloy electrode. The shapes of the potentiodynamic I(E) curves of the alloy were found to be quite similar to those of the Ni voltamograms. Although the anodic current densities of Ni and the alloy increased with greater concentrations of acetate, the opposite effect occurred in Cu. The impedance measurements taken at the open circuit potential revealed that the polarization resistance (RP) of the electrodes decreased in the following order: Ni > Alloy > Cu. With increasing concentrations of acetate, the RP of the alloy and the Cu increased while that of the Ni electrode decreased |
| Disciplinas: | Ingeniería |
| Palabras clave: | Ingeniería de materiales, Ingeniería química, Comportamiento electroquímico, Corrosión, Acetato, Cobre, Níquel |
| Keyword: | Engineering, Chemical engineering, Materials engineering, Electrochemical behavior, Corrosion, Acetate, Copper, Nickel |
| Texto completo: | Texto completo (Ver HTML) |
