Abstract:Abstract. We present a review on catalytic or electrical properties of materials based on rare earth (RE) oxides (CeO 2 , La 2 O 3 , Lu 2 O 3 ) or bismuth based composite systems CeO 2 -Bi 2 O 3 , susceptible to be integrated into catalytic microsystems or gas sensors. The polycrystalline solids can be used as catalysts allowing conversion of CO or CH 4 traces in air-gas flows. Fourier Transform infrared spectroscopy is used to determine the conversion rate of CO or CH 4 into CO 2 through the variations versus… Show more
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