| Texto completo | |
| Autor(es): |
Cardoso, Andre L. F.
;
Perdomo, Claudia P. F.
;
Foschiani, Beatriz G.
;
Barbara, Iago C. S.
;
Xaraba, Julia A.
;
Zabotto, Fabio L.
;
Gunnewiek, Rodolfo F. K.
Número total de Autores: 7
|
| Tipo de documento: | Artigo Científico |
| Fonte: | Materials Letters; v. 333, p. 4-pg., 2023-02-15. |
| Resumo | |
A single-phase high entropy (CoCrFeMnNi)3O4 spinel presenting a cubic structure (Fd-3m) was microwave synthesized by a polymer-based synthesis. The complete synthesis route lasted no longer than 2 h. The high entropy spinels (HES) were characterized by X-ray diffractometry, transmission electron microscopy and diffuse reflectance spectroscopy. The as-synthesized powders yielded nanostructures and the calcination temperature of single-phase formation was observed to be at least 800 degrees C. The band gap energy of the microwave-irradiated HES was 2.2 eV and 2.45 eV of the conventionally calcined one. These band gap energy values indicate possibilities as a promising catalyst with tunable properties for application in the field of catalytic conversion. (AU) | |
| Processo FAPESP: | 17/13769-1 - Materiais multiferróicos e ferroelétricos para conversores de energia: síntese, propriedades, fenomenologia e aplicações |
| Beneficiário: | José Antonio Eiras |
| Modalidade de apoio: | Auxílio à Pesquisa - Temático |