| Journal: | Materials research |
| Database: | PERIÓDICA |
| System number: | 000312892 |
| ISSN: | 1516-1439 |
| Authors: | Goncalves, Emerson Sarmento1 Rezende, Mirabel Cerqueira Takahashi, Marta Ferreira Koyama Ferreira, Neidenei Gomes |
| Institutions: | 1Instituto de Aeronautica e Espaco, Centro Tecnico Aeroespacial, Sao Jose dos Campos, Sao Paulo. Brasil |
| Year: | 2006 |
| Season: | Abr-Jun |
| Volumen: | 9 |
| Number: | 2 |
| Pages: | 147-152 |
| Country: | Brasil |
| Language: | Inglés |
| Document type: | Nota breve o noticia |
| Approach: | Experimental |
| English abstract | Electrochemical response of ferri/ferrocyanide redox couple is discussed for a system that uses reticulated vitreous carbon (RVC) three dimensional electrodes prepared at five different Heat Treatment Temperatures (HTT) in the range of 700 °C to 1100 °C. Electrical resistivity, scanning electron microscopy and X ray Diffraction analyses were performed for all prepared samples. It was observed that the HTT increasing promotes an electrical conductivity increasing while the Bragg distance d002 decreases. The correlation between reversibility behavior of ferri/ferrocyanide redox couple and both surface morphology and chemical properties of the RVC electrodes demonstrated a strong dependence on the HTT used to prepare the RVC |
| Disciplines: | Ingeniería, Física y astronomía |
| Keyword: | Ingeniería de materiales, Ingeniería eléctrica, Electromagnetismo, Carbono vítreo reticulado, Propiedades electroquímicas, Pirólisis, Temperatura |
| Keyword: | Engineering, Physics and astronomy, Electrical engineering, Materials engineering, Electromagnetism, Reticulated vitreous carbon, Electrochemical properties, Pyrolysis, Temperature |
| Full text: | Texto completo (Ver HTML) |
