Preparation method of metal or metal oxide particle-containing CeO2 fiber catalyst

A technology of metal nanoparticles and oxides, which is applied in the field of preparation of CeO2 fiber catalysts, can solve the problems that have not been reported yet, and achieves the effect of simple and easy preparation method, low cost and broad application prospect.
CN104707604AInactive Publication Date: 2015-06-17BEIJING UNIV OF CHEM TECH
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Patent Information

Authority / Receiving Office
CN · China
Patent Type
Applications(China)
Current Assignee / Owner
BEIJING UNIV OF CHEM TECH
Publication Date
2015-06-17
Estimated Expiration
Not applicable · inactive patent

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Abstract

The invention discloses a preparation method of a metal or metal oxide particle-containing CeO2 fiber catalyst, and belongs to the field of preparation of nanocatalysts. The novel fiber-based supported catalyst is obtained by adopting a cocatalyst CeO2 fiber as a supporter to support a main catalyst metal or metal oxide nanoparticle. The method comprises the following steps: 1, respectively dissolving a CeO2 precusor, a polymer and a metal or metal salt in a solvent, magnetically stirring, and mixing and stirring to obtain a spinning precursor solution; 2, carrying out an electrostatic spinning technology to make metal or metal CeO2 / polymer supported composite precursor fibers; and 3, carrying out high temperature calcining and hydrogen reduction to obtain the metal or metal oxide nanoparticle / CeO2 fiber supported catalyst. The method is simple and easy, and the metal or metal oxide particle has good dispersibility and large specific surface area; and the catalyst high the characteristics of high catalysis activity and easy recovery, and has wide application prospect in the future catalysis industry.
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Description

technical field

[0001] The present invention relates to a CeO containing metal or metal oxide particles 2 The invention relates to a preparation method of a fiber catalyst, which belongs to the technical field of nano catalyst preparation. Background technique

[0002] In the field of catalysis, common traditional catalysts contain a large amount of noble metals, non-ferrous metals or their oxides. These catalysts are widely used in chemical reactions such as hydrogenation, oxidation, dehydrogenation, methanol cracking, reforming, and shift reactions. However, due to the high price of these noble metals, researchers have been working on how to improve their catalytic activity while reducing the amount of catalyst. and catalytic efficiency, as well as implementing effective recycling. Among them, the nanometerization of these noble metal particles can significantly improve the catalytic activity, but at the same time, due to the high price of nanometer-sized catalyst partic...

Claims

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
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