| Article ID | Journal | Published Year | Pages | File Type |
|---|---|---|---|---|
| 743752 | Sensors and Actuators B: Chemical | 2008 | 5 Pages |
Abstract
The nominal La1−xMgxFeO3 powder was prepared by a sol–gel method using citric acid. The compound crystals were of a perovskite phase with orthorhombic structure when x ≤ 0.1. It was a mixture of spinel and perovskite when x > 0.1, and the p–n heterojunctions were formed, which affected the resistance and response to methane of the samples (x > 0.1). Among all La1−xMgxFeO3 (x ≤ 0.7) samples, the La0.9Mg0.1FeO3-based sensors with high sensitivity, low operating temperature, and excellent stability in air can be used as a new type of gas sensing material for detecting methane gas.
Keywords
Related Topics
Physical Sciences and Engineering
Chemistry
Analytical Chemistry
Authors
Xing Liu, Bin Cheng, Jifan Hu, Hongwei Qin, Minhua Jiang,