Preparation of nano copper chromite using microemulsion method

A copper chromite, nano technology, applied in the field of nano materials, can solve the problems of uneven mixing of ultra-fine copper chromite and ultra-fine ammonium perchlorate, affecting the catalytic effect, and insufficient contact, etc.
CN1426965AInactive Publication Date: 2003-07-02RUNJI SCI & TECH DEV SHANGHAI
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Patent Information

Authority / Receiving Office
CN · China
Patent Type
Applications(China)
Current Assignee / Owner
RUNJI SCI & TECH DEV SHANGHAI
Publication Date
2003-07-02
Estimated Expiration
Not applicable · inactive patent

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Abstract

A process for preparing nanometre-class copper chromite by the microemulsion method includes such steps as mixing toluene, water and emulsifier, ultrasonic emulsifying to form microemulsion, dropping the ammonia solution of potassium bichromate and the solution of copper sulfate to generate colloid deposit, distilling to remove toluene and water, washing with absolute alcohol, then with water and finally with acetone, drying at 55-65 deg.C and calcining.
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Description

technical field

[0001] The invention relates to the field of nanometer materials, more specifically, the invention relates to a preparation method of nanometer copper chromite and the prepared nanometer copper chromite. Background technique

[0002] Nanoparticles have attracted the attention of scientists for their unique properties, and their application in catalysis has shown an interesting and dynamic research field for catalysis workers. From the current field, it can be seen that nanoparticles have high activity and selectivity for catalytic oxidation, reduction and cracking reactions, and also have obvious photocatalytic activity for photolysis of water to produce hydrogen and some organic synthesis reactions [Ueno A, et al. J Chem Sec, 1983, 79: 127]. Nanoparticle catalysts have been called the fourth generation catalysts in the world. Nano-catalysts have high specific surface and surface energy, and many active sites, so their catalytic activity and selectivity are...

Claims

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