Chlorine gas sensing performance of palladium doped nickel ferrite thin films
| Autor: | R.V. Godbole, Sunita Bhagwat, Pratibha Rao |
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| Rok vydání: | 2016 |
| Předmět: |
Materials science
Doping Spinel Analytical chemistry chemistry.chemical_element 02 engineering and technology engineering.material 010402 general chemistry 021001 nanoscience & nanotechnology Condensed Matter Physics 01 natural sciences 0104 chemical sciences Electronic Optical and Magnetic Materials law.invention SQUID Magnetization Operating temperature chemistry Ferrimagnetism law engineering Thin film 0210 nano-technology Palladium |
| Zdroj: | Journal of Magnetism and Magnetic Materials. 405:219-224 |
| ISSN: | 0304-8853 |
| Popis: | NiFe 2 O 4 and Pd:NiFe 2 O 4 (Pd=1 w/o, 3 w/o and 5 w/o) thin films, p-type semiconducting oxides with an inverse spinel structure have been used as a gas sensor to detect chlorine. These films were prepared by spray pyrolysis technique and XRD was used to confirm the structure. The surface morphology was studied using SEM. Magnetization measurements were carried out at room temperature using SQUID VSM, which shows ferrimagnetic behavior of the samples. The reduction in optimum operating temperature and enhancement in response was observed on Pd-incorporation in nickel ferrite thin films. Faster response and recovery characteristic is observed Pd-incorporated nickel ferrite thin films. The long-term stability is evaluated over a period of six months. This feature may be regarded as a significant facet towards their practical application as gas sensors. |
| Databáze: | OpenAIRE |
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