Nanocrystal-mesoporous structure cerium-zirconium-aluminum-based composite oxide oxygen storage material and preparation method thereof
The invention belongs to the technical field of industrial catalysis, and particularly relates to a nanocrystalline-mesoporous structure cerium-zirconium-aluminum-based composite oxide oxygen storage material and a preparation method thereof. Comprising the following steps: (1) mixing and dissolving...
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| creator | WANG LIUQI WANG ZHULAN |
| description | The invention belongs to the technical field of industrial catalysis, and particularly relates to a nanocrystalline-mesoporous structure cerium-zirconium-aluminum-based composite oxide oxygen storage material and a preparation method thereof. Comprising the following steps: (1) mixing and dissolving cerium salt, zirconium salt, aluminum salt and doped element salt, adding a template agent under the stirring action, and continuously stirring for 0.5-1 hour to obtain a uniformly mixed salt solution A; (2) adding 2-3 times of water into stronger ammonia water with the concentration of 25-28wt% to dilute the stronger ammonia water, and using the diluted stronger ammonia water as a precipitant B; (3) dissolving a dispersing agent in water to obtain a dispersing agent solution C; and (4) stirring the dispersing agent solution C, simultaneously pumping the mixed salt solution A and the precipitator B, and continuously stirring for a period of time after the reaction is finished to obtain slurry and the like. The tem |
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Comprising the following steps: (1) mixing and dissolving cerium salt, zirconium salt, aluminum salt and doped element salt, adding a template agent under the stirring action, and continuously stirring for 0.5-1 hour to obtain a uniformly mixed salt solution A; (2) adding 2-3 times of water into stronger ammonia water with the concentration of 25-28wt% to dilute the stronger ammonia water, and using the diluted stronger ammonia water as a precipitant B; (3) dissolving a dispersing agent in water to obtain a dispersing agent solution C; and (4) stirring the dispersing agent solution C, simultaneously pumping the mixed salt solution A and the precipitator B, and continuously stirring for a period of time after the reaction is finished to obtain slurry and the like. 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Comprising the following steps: (1) mixing and dissolving cerium salt, zirconium salt, aluminum salt and doped element salt, adding a template agent under the stirring action, and continuously stirring for 0.5-1 hour to obtain a uniformly mixed salt solution A; (2) adding 2-3 times of water into stronger ammonia water with the concentration of 25-28wt% to dilute the stronger ammonia water, and using the diluted stronger ammonia water as a precipitant B; (3) dissolving a dispersing agent in water to obtain a dispersing agent solution C; and (4) stirring the dispersing agent solution C, simultaneously pumping the mixed salt solution A and the precipitator B, and continuously stirring for a period of time after the reaction is finished to obtain slurry and the like. 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Comprising the following steps: (1) mixing and dissolving cerium salt, zirconium salt, aluminum salt and doped element salt, adding a template agent under the stirring action, and continuously stirring for 0.5-1 hour to obtain a uniformly mixed salt solution A; (2) adding 2-3 times of water into stronger ammonia water with the concentration of 25-28wt% to dilute the stronger ammonia water, and using the diluted stronger ammonia water as a precipitant B; (3) dissolving a dispersing agent in water to obtain a dispersing agent solution C; and (4) stirring the dispersing agent solution C, simultaneously pumping the mixed salt solution A and the precipitator B, and continuously stirring for a period of time after the reaction is finished to obtain slurry and the like. The tem</abstract><oa>free_for_read</oa></addata></record> |
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| language | chi ; eng |
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| subjects | CHEMICAL OR PHYSICAL PROCESSES, e.g. CATALYSIS OR COLLOIDCHEMISTRY CHEMISTRY COMPOUNDS CONTAINING METALS NOT COVERED BY SUBCLASSESC01D OR C01F COMPOUNDS THEREOF INORGANIC CHEMISTRY MANUFACTURE OR TREATMENT OF NANOSTRUCTURES MEASUREMENT OR ANALYSIS OF NANOSTRUCTURES METALLURGY NANOTECHNOLOGY NON-METALLIC ELEMENTS PERFORMING OPERATIONS PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL SEPARATION SPECIFIC USES OR APPLICATIONS OF NANOSTRUCTURES THEIR RELEVANT APPARATUS TRANSPORTING |
| title | Nanocrystal-mesoporous structure cerium-zirconium-aluminum-based composite oxide oxygen storage material and preparation method thereof |
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