Gas-sensing Properties of La0.68Pb0.32O3 Nano-materials under Low Operating Temperature

Abstract

Abstract: The La_0.68Pb_0.32FeO₃ sample with an orthogonal perovskite structure was prepared by using the sol-gel method. The gas-sensing properties were studied in CO gas. The experimental results reveal that the La_0.68Pb_0.32FeO₃ sample shows smaller grain sizes, higher conductance and higher sensitivity to CO gas, especially the much lower operating temperature compared with LaFeO₃ sample. The activation energy for La_0.68Pb_0.32FeO₃ sample in CO gas is higher than that in air.

Key words: perovskite structure, nano-materials, gas-sensing

CLC Number:

TB383
TN304

ZHANG Ling,HU Ji-Fan,QIN Hong-Wei,SONG Peng,JIANG Min-Hua. Gas-sensing Properties of La_0.68Pb_0.32O₃ Nano-materials under Low Operating Temperature[J]. Journal of Inorganic Materials.

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Gas-sensing Properties of La_0.68Pb_0.32O₃ Nano-materials under Low Operating Temperature

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