Preparation method and application of Fe3O4-Co3O4 porous magnetic composite material

A magnetic composite material, cobalt tetroxide technology, applied in electrical components, battery electrodes, circuits, etc., to achieve the effects of excellent performance, good magnetic performance and low cost
CN102569783BInactive Publication Date: 2014-06-18ANHUI NORMAL UNIV
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Patent Information

Authority / Receiving Office
CN · China
Patent Type
Patents(China)
Current Assignee / Owner
ANHUI NORMAL UNIV
Publication Date
2014-06-18
Estimated Expiration
Not applicable · inactive patent

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Abstract

The invention discloses a preparation method of a Fe3O4-Co3O4 porous magnetic composite material. The preparation method comprises the following steps of (a) blending, (b) heating, (c) drying and (d) calcining. In comparison with the prior art, the invention has the following advantages: (1) other oxides are not found in the product, and the product is a heterogeneous material and has uniform particle size, special morphology, high activity, simple one-step synthesis method, large apparent density, and good magnetic performance; (2) the method has high yield, low cost, short production flow and is convenient in scale-up experiment; (3) the method is simple and controllable, and has low demand for equipment, so that the method is suitable for industrial production; and (4) the magnetic material with a heterogeneous oxide core-shell structure provided by the invention can be effectively applied to lithium-ion and fuel cell materials.
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Description

Technical field:

[0001] The invention relates to the preparation and application fields of nanometer metal oxides, and provides a preparation method of ferric trioxide-cobalt tetroxide yolk-shell porous magnetic composite material. technical background:

[0002] The core-shell structure and empty-shell structure can prevent the aggregation of the core, and these materials are often used in controlled release, controllable catalysis, and optical and electrical applications. The Yolk-shell structure is different from the core-shell and hollow-shell structures in that it has an empty shell and a core that can move freely in the hollow shell. And a heterogeneous Yolk-shell structure, because of the unique properties of their free-moving core, the gap between the core and the shell, and the functional shell, makes them ideal for applications such as nanoreactors, biopharmaceuticals, lithium-ion batteries, and photocatalysis. material with great potential.

[0003] A commonly us...

Claims

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