Shape controlled cerium oxide particle, as well as preparation method and application thereof
A technology of cerium oxide and morphology, applied in chemical instruments and methods, inorganic chemistry, rare earth metal compounds, etc., can solve the problems of poor stability, low yield, high production cost, etc., achieve good repeatability and reduce production cost.
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Embodiment 1
[0021] The first step: a certain amount of cerium-containing compound is prepared into 10 milliliters of an aqueous phase solution with a cerium ion concentration of 0.5M, stirred evenly, and gradually adding 70 milliliters of a hydroxide ion concentration of 10 milliliters under stirring conditions -2 M sodium hydroxide solution, fully stirred for 30 minutes;
[0022] Step 2: Put the stirred solution in a hydrothermal reaction kettle, heat it to 100°C and maintain it for 20 hours, separate the reaction product by filtration, wash the reaction product with deionized water and ethanol in turn, and dry it in the air dry, the drying temperature is 60°C;
[0023] Step 3: Calcinate the dried reaction product in a muffle furnace at 600° C. for 2 hours, cool it down to room temperature naturally, and take it out.
[0024] Embodiment 2: as figure 2 The preparation method of the shown rod-shaped cerium oxide particles, the steps are:
Embodiment 2
[0025] The first step: a certain amount of cerium-containing compound is prepared into 10 milliliters of an aqueous phase solution with a cerium ion concentration of 0.5M, stirred evenly, and gradually adding 70 milliliters of sodium hydroxide with a hydroxide ion concentration of 6M under stirring conditions solution, fully stirred for 30 minutes;
[0026] Step 2: Put the stirred solution in a hydrothermal reaction kettle, heat it to 100°C and maintain it for 20 hours, separate the reaction product in the form of particles by filtration, wash the reaction product with deionized water and ethanol in turn, and place in Drying in the air, the drying temperature is 60 ℃;
[0027] Step 3: Calcinate the dried reaction product in a muffle furnace at 600° C. for 2 hours, cool it down to room temperature naturally, and take it out.
[0028] Comparative example 1: if image 3 Shown, utilize solid chemical method to produce the preparation method of cerium oxide particle, the step is:...
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