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- Title
Synthesis and study of sensor oxide nanofilms in a ZrO-CeO system.
- Authors
Arsent'ev, M.; Kalinina, M.; Tikhonov, P.; Morozova, L.; Kovalenko, A.; Koval'ko, N.; Khlamov, I.; Shilova, O.
- Abstract
Methods of the synthesis of nanostructured oxide films have been suggested for gas sensors based on zirconium and cerium dioxides with a cubic structure and crystallite size of 10-12 nm. The compositions in the CeO-ZrO system having the highest sensitivity have been predicted, based on quantum-chemical calculations via the density functional method (DFT). These calculated data are correlated to the experimental results of the measurement of electroconductivity on air and in a reducing medium (CO + CO). The obtained nanosized oxide films have a high response time (5-6 s) and sensitivity; they are promising as resistive sensors for the detection of media with reduced oxygen content. The method of computer simulation allows the reduction of the search period of new materials for gas sensors.
- Subjects
NANOFILMS; NANOPARTICLE synthesis; OXIDE coating; GAS detectors; ZIRCONIUM; CERIUM compounds; ZIRCONIUM compounds; CRYSTALLIZATION; QUANTUM chemistry; SOLID solutions
- Publication
Glass Physics & Chemistry, 2014, Vol 40, Issue 3, p362
- ISSN
1087-6596
- Publication type
Article
- DOI
10.1134/S1087659614030031