Abstract
The influence of sol-gel auto combustion synthesis conditions on the phase purity and microstructure of ZnFe2O4 (ZnO·Fe 2O3) nanopowders was studied. The phase composition was determined by X-ray diffraction and the particle size measured by scanning electron microscopy. It was found that the external conditions of the auto-combustion reaction affect the phase purity of the synthesized material. Combustion of a xerogel layer on a hot plate forms monophasic spinel zinc ferrite with a particle size ∼20 nm. Practical use of synthesized ZnFe 2O4 nanopowders as gas sensors with reversible response-recovery behavior to ethanol is demonstrated.
| Original language | English |
|---|---|
| Pages (from-to) | 8499-8502 |
| Number of pages | 4 |
| Journal | Ceramics International |
| Volume | 39 |
| Issue number | 7 |
| DOIs | |
| Publication status | Published - Sept 2013 |
| Externally published | Yes |
Keywords*
- Gas sensor
- Sol-gel
- Zinc ferrite
Field of Science*
- 2.5 Materials engineering
- 2.4 Chemical engineering
Publication Type*
- 1.1. Scientific article indexed in Web of Science and/or Scopus database