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METHOD FOR PREPARING NANO-ZIRCONIUM/HAFNIUM OXIDE AND METAL NANOPARTICLES
The present invention relates to a method for preparing nano ZrO2/HfO2 and metal nanoparticles. Firstly, an initial alloy mainly composed of Zr/Hf and Al/Zn is prepared using metal raw materials; Dissolve the initial alloy in a hot alkaline solution to obtain an intermediate solution; Then reduce the alkaline concentration or (and) temperature of the intermediate solution to allow the solid flocculent products containing Zr/Hf to precipitate from the intermediate solution after the concentration or (and) temperature is reduced, resulting in low crystalline nano ZrO2/HfO2; By further heat treatment, crystalline nano ZrO2/HfO2 was obtained. When precious metal elements are dissolved in the initial alloy, this method can also be used to prepare metal nanoparticle doped nano ZrO2/HfO2; After removing the nano ZrO2/HfO2 from the composite product, metal nanoparticles were further prepared.
METHOD FOR PREPARING NANO-ZIRCONIUM/HAFNIUM OXIDE AND METAL NANOPARTICLES
The present invention relates to a method for preparing nano ZrO2/HfO2 and metal nanoparticles. Firstly, an initial alloy mainly composed of Zr/Hf and Al/Zn is prepared using metal raw materials; Dissolve the initial alloy in a hot alkaline solution to obtain an intermediate solution; Then reduce the alkaline concentration or (and) temperature of the intermediate solution to allow the solid flocculent products containing Zr/Hf to precipitate from the intermediate solution after the concentration or (and) temperature is reduced, resulting in low crystalline nano ZrO2/HfO2; By further heat treatment, crystalline nano ZrO2/HfO2 was obtained. When precious metal elements are dissolved in the initial alloy, this method can also be used to prepare metal nanoparticle doped nano ZrO2/HfO2; After removing the nano ZrO2/HfO2 from the composite product, metal nanoparticles were further prepared.
METHOD FOR PREPARING NANO-ZIRCONIUM/HAFNIUM OXIDE AND METAL NANOPARTICLES
ZHAO YUANYUN (author) / LI YANJUN (author)
2024-07-25
Patent
Electronic Resource
English
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