Preparation, characterization and gas-sensitive properties of nano-crystalline Cr2O3Fe2O3 mixed oxides |
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| Authors: | Xiaojuan Yang Naisheng Chen Shuifa Shen Ersheng Liu Jinling Huang |
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| Institution: | (1) Institute of Research on the Functional Materials, Department of Chemistry, Fuzhou University, 350002 Fuzhou, China |
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| Abstract: | A series of Fe2-xCrxO3(x = 0, 0.4, 0.8, 1.2, 1.6, 2.0) mixed oxides have been prepared with the chemical coprecipitation method and characterized by specific surface area, transmission electron microscopy (TEM), powder X-ray diffraction (XRD), IR and Mössbauer spectroscopy. Single-phase Fe-Cr mixed oxide nano-crystalline powders with corundum structure are obtained, and the results of the five characterization methods are well accordant with each other. Furthermore, gas-sensitive properties of the sensors made of the oxide powders have been studied. |
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| Keywords: | mixed oxide nano-crystalline corundum structure semiconductivity gas-sensitive properties |
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