Preparation method of cerium oxide hexagonal nanometer sheet structure

Abstract

The invention discloses a preparation method of a cerium oxide hexagonal nanometer sheet structure. The method comprises the following steps that 1.4903 g of CeC13 7H2O is added to 10 mL of distilled water to be stirred and mixed to obtain solution a; 4.7430 g of urea is added to 15 mL of distilled water to be fully stirred for 15-20 min, the mixture is mixed with the solution a and fully stirred for 30-35 min, 10 mL of ethylene diamine is added and stirred for 30-35 min, then the mixture is moved to a 50 mL high temperature reaction kettle and reacts for 48 h under the temperature of 120-160 DEG C, after the reaction is over, water and alcohol are used for washing the mixture in an alternating mode for 3 times respectively, finally the mixture is annealed for 5 h under the temperature of 400 DEG C, and the cerium oxide hexagonal nanometer sheet structure is obtained. The produced nanometer cerium oxide is high in purity, standard in appearance, even in size, not prone to reunion and friendly to environment, macromolecule surfactants are not added, the raw materials are simple, and the preparation process and needed equipment are simple.

Description

technical field [0001] The invention mainly relates to the field of nanometer materials, in particular to a method for preparing a cerium oxide hexagonal nanosheet structure. Background technique [0002] Cerium oxide can be widely used in polishing materials, catalysts, catalyst carriers (auxiliary agents), ultraviolet absorbers, fuel cell electrolytes, automobile exhaust absorbers, electronic ceramics, etc.; therefore, more in-depth research has been carried out on cerium oxide nanomaterials. There are also many methods for cerium oxide, such as high-temperature calcination, hydrothermal synthesis, solution precipitation, sol-gel method, microemulsion method, organic cerium salt thermal decomposition method, etc.; but these methods have complex formulas, and generally need to add suitable Surfactants or precipitants, harsh production conditions and high costs; [0003] In recent years, researchers have found that cerium oxide with different morphologies has different phys...

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Problems solved by technology

[0002] Cerium oxide can be widely used in polishing materials, catalysts, catalyst carriers (auxiliary agents), ultraviolet absorbers, fuel cell electrolytes, automobile exhaust absorbers, electronic ceramics, etc.; therefore, more in-depth research has been carried out on cerium oxide nanomaterials. There are also many methods for cerium oxide, such as high-temperature calcination, hydrothermal synthesis, solution precipitation, sol-gel method, microemulsion method, organic cerium salt thermal decomposition method, etc.; but these methods have complex formulas, and generally need to add suitable Surfactants or precipitants, harsh production conditions and high costs;

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