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河北祥鹄科学仪器有限公司

Microwave solid Phase Oxidation-reduction Synthesis of Nano-Cerium fluoride Ⅲ

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[Abstract]:
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Abstract:
      Under the action of microwave field, the fluorinated decoration (III) was rapidly synthesized by direct method and indirect method. The composition and structure of the sample were characterized by emission scanning electron microscopy, and the two synthesis methods and microwave synthesis conditions were discussed. The effect on the product.

Experimental details:

Experimental analysis:

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Conclusion:
      The traditional method comprises the following steps of: uniformly mixing the rare-earth oxide and the pure hydrogen fluoride of an excess sheet, and then putting the rare-earth oxide into a platinum boat, putting the rare-earth oxide into a nickel-chromium alloy pipe, carrying out fluorination at the temperature of 300℃, keeping the temperature for 12h, and then passing through a dry air or a nitrogen gas flow at a high temperature of 400-600℃, the excess nitrogen fluoride vapor in the reaction and the water vapor generated during the reaction are eliminated. It can be seen that the conventional synthesis method has the disadvantages of long reaction time, complex process, large energy consumption and the like. The microwave-solid phase oxidation reduction method not only saves raw materials, has high reaction speed and high sample purity, but also has the advantages of simple method, easy operation, high efficiency and energy conservation and the like.

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