| Full text | |
| Author(s): |
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.
Total Authors: 7
|
| Document type: | Journal article |
| Source: | Materials Letters; v. 333, p. 4-pg., 2023-02-15. |
| Abstract | |
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) | |
| FAPESP's process: | 17/13769-1 - Multiferroic and ferroelectric materials for energy converters: synthesis, properties, phenomenology and applications |
| Grantee: | José Antonio Eiras |
| Support Opportunities: | Research Projects - Thematic Grants |