| Journal: | Brazilian journal of physics |
| Database: | PERIÓDICA |
| System number: | 000403114 |
| ISSN: | 0103-9733 |
| Authors: | Campos, A.F.C1 Marinho, E.P1 Ferreira, M. de A1 Tourinho, F.A1 Paula, F.L. de O2 Depeyrot, J2 |
| Institutions: | 1Universidade de Brasilia, Instituto de Quimica, Brasilia, Distrito Federal. Brasil 2Universidade de Brasilia, Instituto de Fisica, Brasilia, Distrito Federal. Brasil |
| Year: | 2009 |
| Season: | Abr |
| Volumen: | 39 |
| Number: | 1A |
| Pages: | 230-235 |
| Country: | Brasil |
| Language: | Inglés |
| Document type: | Artículo |
| Approach: | Analítico |
| English abstract | The phase behavior of acidic samples of EDL-MF based on cobalt ferrite nanoparticles with controlled mean sizes was investigated at constant temperature and in absence of magnetic field. By monitoring the nanoparticle charge by pH adjustments, we constructed an experimental pH-dependent phase diagram for all samples that revealed sol, gel thixotropic or coagulated phases in different pH regions. Then, by using an extended DLVO potential we analyzed quantitatively the observed phase diagram in function of pH and nanoparticle mean size |
| Disciplines: | Física y astronomía, Química |
| Keyword: | Física de materia condensada, Fisicoquímica y química teórica, Polímeros, Nanopartículas, Coloides |
| Keyword: | Physics and astronomy, Chemistry, Condensed matter physics, Physical and theoretical chemistry, Polymers, Nanoparticles, Colloids |
| Full text: | Texto completo (Ver PDF) |
