Microwave-assisted hydrothermal synthesis of ceria (CeO2): microstructure, sinterability and electrical properties
| dc.contributor.author | Nascimento, Rubens Maribondo Do | |
| dc.contributor.author | Carregosa, João Domingos Covello | |
| dc.contributor.author | Grilo, João Paulo de Freitas | |
| dc.contributor.author | Godoi, Glauber Silva | |
| dc.contributor.author | Macedo, Daniel Araújo de | |
| dc.contributor.author | Oliveira, Rosane Maria Pessoa Betânio | |
| dc.date.accessioned | 2021-12-17T14:11:16Z | |
| dc.date.issued | 2020-10 | |
| dc.description.embargo | 2030-12 | |
| dc.description.resumo | This work reports the microstructural (XRD/SEM), dilatometric and electrical characterization (impedance spectroscopy) of ceria (CeO2) obtained by microwave-assisted hydrothermal synthesis under mild conditions (T = 120 °C and short reaction times of 10 and 20 min). The as-prepared and calcined powders show characteristic diffraction peaks of the cubic fluorite-type structure of cerium oxide. A remarkable sinterability allows obtaining dense ceramics (relative densities exceeding 95%) with enhanced electrical properties (σt = 2.14 × 10−5 S cm−1 at 500 °C) after sintering at a temperature as low as 1200 °C | pt_BR |
| dc.identifier.citation | CARREGOSA, João D. C.; GRILO, João P. F.; GODOI, Glauber S.; MACEDO, Daniel A.; NASCIMENTO, Rubens M.; OLIVEIRA, Rosane M. P. B. Microwave-assisted hydrothermal synthesis of ceria (CeO2): microstructure, sinterability and electrical properties. Ceramics International, [S.L.], v. 46, n. 14, p. 23271-23275, out. 2020. Disponível em: https://www.sciencedirect.com/science/article/pii/S0272884220316679?via%3Dihub. Acesso em: 30 mar. 2021. http://dx.doi.org/10.1016/j.ceramint.2020.06.021. | pt_BR |
| dc.identifier.doi | 10.1016/j.ceramint.2020.06.021 | |
| dc.identifier.issn | 0272-8842 | |
| dc.identifier.uri | https://repositorio.ufrn.br/handle/123456789/45454 | |
| dc.language | en | pt_BR |
| dc.publisher | Elsevier | pt_BR |
| dc.subject | Microwave-assisted hydrothermal synthesis | pt_BR |
| dc.subject | Ceramics | pt_BR |
| dc.subject | CeO2 | pt_BR |
| dc.subject | Dilatometry | pt_BR |
| dc.subject | Electrical properties | pt_BR |
| dc.title | Microwave-assisted hydrothermal synthesis of ceria (CeO2): microstructure, sinterability and electrical properties | pt_BR |
| dc.type | article | pt_BR |
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