A method for preparing a composite metal oxide nanopowder
The preparation of composite metal oxide nanopowders by controlling reaction parameters through the molten salt method solves the problems of complex preparation and high cost in existing technologies, and realizes rapid and low-energy nanopowder preparation, which is suitable for a variety of application fields.
CN119911959BActive Publication Date: 2025-11-25HANGZHOU DIANZI UNIV
Patent Information
- Application Number
- CN202510101150.X
- Authority / Receiving Office
- CN · China
- Patent Type
- Patents(China)
- Current Assignee / Owner
- Filing Date
- 2025-01-22
- Publication Date
- 2025-11-25
- Estimated Expiration
- 2045-01-22
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Figure CN119911959B_ABST
Abstract
The application discloses a preparation method of a composite metal oxide nanopowder, which comprises the following steps: fully mixing precursor salt, two kinds of different metal source salt, sodium hydroxide / potassium hydroxide and urea to form mixed reactants; heating the mixed reactants to a reaction temperature from room temperature at a certain heating rate in an inert gas atmosphere, and keeping the mixed reactants in a molten state for a period of time; cooling the mixed reactants to a certain temperature in the furnace, and keeping the mixed reactants at the certain temperature for a period of time; again heating the mixed reactants to a second reaction temperature at a certain heating rate, and reacting for a period of time; cooling the mixed reactants to room temperature in the furnace, and ultrasonically dispersing the product in deionized water; and after centrifugal cleaning and complete drying, the composite metal oxide nanopowder material is obtained. The method can be used for preparing the composite metal oxide nanopowder with various phases, various morphologies and sizes, and the type, morphology and size of the composite metal oxide nanopowder can be controlled by the ratio of the precursor salt and the metal source salt, and the reaction temperature and the reaction time.
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Citation Information
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