Article ID | Journal | Published Year | Pages | File Type |
---|---|---|---|---|
10411106 | Sensors and Actuators B: Chemical | 2005 | 5 Pages |
Abstract
The nanocrystalline La1âxPbxFeO3 ceramics (x=0-0.3) can be prepared by the citric method. All the compounds crystallize as perovskite phase with orthorhombic structure. The Pb-doping restrains the growth of the grain size. The conductivity and gas sensitivity of La1âxPbxFeO3-based sensor were investigated. Results demonstrate that Pb-doping can enhance the conductance and improve the sensitivity, selectivity and response time of LaFeO3. Among the materials investigated, La0.8Pb0.2FeO3 shows the best sensitivity to ethanol at an operating temperature of 140 °C.
Keywords
Related Topics
Physical Sciences and Engineering
Chemistry
Analytical Chemistry
Authors
Peng Song, Hongwei Qin, Ling Zhang, Kang An, Zhaojun Lin, Jifan Hu, Minhua Jiang,