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Preparation method of scandium oxide-stabilized zirconium oxide nano-powder
The invention relates to a preparation method of completely stable cubic phase scandium oxide stabilized zirconium oxide nano-powder. The zirconium oxide nano-powder comprises precursor mother salt zirconium oxychloride and stabilizer scandium oxide, and the scandium oxide doping amount accounts for 8-10mol%. The preparation method comprises a low-temperature hydrolysis reaction and a high-temperature hydrothermal reaction, and comprises the following steps: firstly, carrying out low-temperature hydrolysis treatment on a water/alcohol mixed solution of a precursor mother salt solution ZrOCl2 (ScCl3, urea) in a reaction kettle, and then carrying out hydrothermal treatment on hydrolysate at the temperature of 160-200 DEG C; the product has the characteristics of small particle size, centralized particle size distribution, low sintering temperature, moderate specific surface area and the like, can be suitable for the existing tape casting process of the SOFC, and is simple in production process and easy to realize industrial large-scale production.
本发明涉及一种完全稳定的立方相氧化钪稳定的氧化锆纳米粉体的制备方法，包括前驱体母盐氧氯化锆，以及稳定剂氧化钪，其中氧化钪掺杂量占8～10mol％。制备方法包括低温水解反应和高温水热反应，首先将前驱体母盐溶液ZrOCl(ScCl，尿素)的水/醇类混合溶液在反应釜中进行低温水解处理，然后将水解液在160～200℃的温度下进行水热处理。产品具有粒径小、粒度分布集中、烧结温度低以及比表面积适中等特点，可适用于SOFC现行的流延成型工艺，且生产工艺简单，易于实现工业化大规模生产。
Preparation method of scandium oxide-stabilized zirconium oxide nano-powder
The invention relates to a preparation method of completely stable cubic phase scandium oxide stabilized zirconium oxide nano-powder. The zirconium oxide nano-powder comprises precursor mother salt zirconium oxychloride and stabilizer scandium oxide, and the scandium oxide doping amount accounts for 8-10mol%. The preparation method comprises a low-temperature hydrolysis reaction and a high-temperature hydrothermal reaction, and comprises the following steps: firstly, carrying out low-temperature hydrolysis treatment on a water/alcohol mixed solution of a precursor mother salt solution ZrOCl2 (ScCl3, urea) in a reaction kettle, and then carrying out hydrothermal treatment on hydrolysate at the temperature of 160-200 DEG C; the product has the characteristics of small particle size, centralized particle size distribution, low sintering temperature, moderate specific surface area and the like, can be suitable for the existing tape casting process of the SOFC, and is simple in production process and easy to realize industrial large-scale production.
本发明涉及一种完全稳定的立方相氧化钪稳定的氧化锆纳米粉体的制备方法，包括前驱体母盐氧氯化锆，以及稳定剂氧化钪，其中氧化钪掺杂量占8～10mol％。制备方法包括低温水解反应和高温水热反应，首先将前驱体母盐溶液ZrOCl(ScCl，尿素)的水/醇类混合溶液在反应釜中进行低温水解处理，然后将水解液在160～200℃的温度下进行水热处理。产品具有粒径小、粒度分布集中、烧结温度低以及比表面积适中等特点，可适用于SOFC现行的流延成型工艺，且生产工艺简单，易于实现工业化大规模生产。
Preparation method of scandium oxide-stabilized zirconium oxide nano-powder
一种氧化钪稳定的氧化锆纳米粉体的制备方法
LUO NENGNENG (author) / SHI CHAO (author) / WEI YUEZHOU (author) / CHEN XIYONG (author)
2020-08-28
Patent
Electronic Resource
Chinese
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