Flower structure nano cerium oxide base composite material and its preparing method and use
A technology of nano-cerium oxide and flower-like structure, which is applied in nanostructure manufacturing, chemical instruments and methods, nanotechnology, etc., can solve the problems of low battery power density, lower battery efficiency and stability, etc., achieve high yield, avoid Good effect of limitation and dispersion
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[0036] Example 1. Preparation of cerium oxide-copper oxide composite material with flower-like structure
[0037] Weigh 0.2 mol of glucose, add it to a container containing 80 ml of deionized water under vigorous stirring, and prepare it into a 2.5M aqueous glucose solution, then add 0.8 mol of acrylamide, and then add 0.5 mol of hydrated Cerium nitrate, after stirring to completely dissolve the cerium nitrate, add 0.5M NaOH solution to adjust the pH of the mixture to 11. With the addition of lye, the mixture turns from a colorless solution to a light yellow-green gel , The pH value of the gel is about 11; after fully stirring for 1 hour, the obtained gel is transferred to a 100 ml polytetrafluoro-lined autoclave with a filling degree of 80v%, and then the The autoclave is sealed. And kept in a constant temperature oven at 180°C for 72 hours. After the hydrothermal reaction, it was naturally cooled to room temperature, the obtained product was centrifuged, the supernatant was remo...
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[0043] Example 2. Preparation of cerium oxide-nickel oxide composite material with flower-like structure
[0044] Weigh 0.0007 mol of glucose, add it to a container containing 70 ml of deionized water under vigorous stirring, and prepare it into a 0.01M aqueous glucose solution, then add 0.000175 mol of acrylamide, and then add 0.00007 mol of hydrated water after it is completely dissolved Cerium nitrate and 0.000021mol hydrated nickel nitrate, stir to completely dissolve the cerium nitrate and nickel acetate, then add 25wt% NH dropwise 3 .H 2 The O solution adjusts the pH value of the mixed solution to 10. With the dripping of ammonia, the mixed solution turns into a gel. The pH of the gel is about 10; after further stirring for 5 hours, you will get The gel was transferred into a 100 ml polytetrafluoroethylene-lined autoclave with a filling degree of 70v%, and then the autoclave was sealed. And kept in a constant temperature oven at 180°C for 72 hours. After the hydrothermal rea...
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[0047] Example 3. Preparation of cerium oxide-manganese oxide-copper oxide composite material with flower-like structure
[0048] Weigh 0.45 mol of glucose, add it to a container containing 90 ml of deionized water under vigorous stirring, and prepare it into a 5M aqueous glucose solution, then add 1.8 mol of acrylamide, and after it is completely dissolved, add 2.25 mol of hydrated acetic acid After cerium and 0.5625mol hydrated manganese nitrate are stirred to completely dissolve the cerium acetate and manganese nitrate, add dropwise 0.5M NaOH solution to adjust the pH value of the mixed solution to 11. With the dropwise addition of lye, the mixed solution becomes shallow Gel, the pH of the gel is about 11; after fully stirring for 1 hour, the obtained gel is transferred to a 100 ml polytetrafluoro-lined autoclave with a filling degree of 90v %, and then seal the autoclave. And keep it in a constant temperature oven at 220°C for 10 hours. After the hydrothermal reaction, it was ...
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