| Revista: | Materials research |
| Base de datos: | PERIÓDICA |
| Número de sistema: | 000312811 |
| ISSN: | 1516-1439 |
| Autores: | Silva, Ana Neilde Rodrigues da1 Furlan, Rogerio Ramos, Idalia Santiago Avilés, Jorge Juan |
| Instituciones: | 1Universidad de Puerto Rico, Departamento de Física y Electrónica, Río Piedras, San Juan. Puerto Rico |
| Año: | 2005 |
| Periodo: | Ene-Mar |
| Volumen: | 8 |
| Número: | 1 |
| Paginación: | 105-108 |
| País: | Brasil |
| Idioma: | Inglés |
| Tipo de documento: | Nota breve o noticia |
| Enfoque: | Experimental |
| Resumen en inglés | This work addresses the formation of nanofibers (with hundred of nanometers) by using electrospinning (electrostatic deposition) aiming at applications as sensors. Different quantities of a colloidal dispersion of graphite particles were blended with polyacrylonitrile (PAN) and N,N dimethylformamide (DMF), resulting in a series of solutions with carbon concentrations ranging from 0 to 25%. Precipitation was observed depending on the concentration of carbon added to the precursor blend. As a consequence, the relative viscosity decreases, due to PAN molecules removal from the solution by carbon particles adsorption, forming precipitates. The resulting fibers show an irregular shape, as observed by SEM and the diameters decrease with the increase of the carbon concentration in the precursor blend. The incorporation of carbon particles in the fibers was confirmed by FTIRS and Raman spectroscopy |
| Disciplinas: | Ingeniería, Física y astronomía |
| Palabras clave: | Ingeniería de materiales, Ingeniería electrónica, Electromagnetismo, Física atómica y molecular, Nanofibras de carbono, Deposición, Espectroscopía Raman |
| Keyword: | Engineering, Physics and astronomy, Electronic engineering, Materials engineering, Atomic and molecular physics, Electromagnetism, Carbon nanofibers, Deposition, Raman spectroscopy |
| Texto completo: | Texto completo (Ver HTML) |
