Title of article
CO-sensing properties of perovskite La0.68Pb0.32FeO3 nano-materials
Author/Authors
Zhang، نويسنده , , Ling and Hu، نويسنده , , Jifan and Song، نويسنده , , Peng and Qin، نويسنده , , Hongwei and An، نويسنده , , Kang and Wang، نويسنده , , Xingdong and Jiang، نويسنده , , Minhua، نويسنده ,
Issue Information
روزنامه با شماره پیاپی سال 2006
Pages
4
From page
315
To page
318
Abstract
A sample La0.68Pb0.32FeO3 with an orthorhombic distorted perovskite structure was prepared by a sol–gel method. The gas-sensing properties have been studied to CO gas. The experimental results revealed that the La0.68Pb0.32FeO3 showed smaller grain size, higher conductance and higher response to CO gas, compared with LaFeO3. We observed a p- to n-type transition around 210 °C upon exposure to CO. The activation energy for conductance of La0.68Pb0.32FeO3 in CO gas was higher than that of LaFeO3 in air below 210 °C, but lower above 210 °C.
Keywords
Gas-sensing , Perovskite structure , Activation energy
Journal title
Sensors and Actuators B: Chemical
Serial Year
2006
Journal title
Sensors and Actuators B: Chemical
Record number
1438516
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