A kind of preparation method of transition metal phosphide co2p

A transition metal and phosphide technology, applied in phosphide and other directions, can solve the problems of unsuitable control and complicated procedures, and achieve the effect of reducing preparation requirements, simple process and more pores

Inactive Publication Date: 2016-02-03
UNIV OF JINAN
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

In this preparation method, it takes up to 6-12 hours to dry, and the calcination temperature is 400-600°C, and the required time is 2-8 hours, and subsequent treatments such as reduction and passivation are required, and the process is cumbersome.
The direct reaction between metal element and phosphorus needs to be carried out in a high-temperature and high-pressure reactor, and the atmosphere needs to be protected during the preparation process, which is not suitable for manipulation; there is a danger of inflammability and explosion

Method used

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  • A kind of preparation method of transition metal phosphide co2p
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  • A kind of preparation method of transition metal phosphide co2p

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Experimental program
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Effect test

Embodiment 1

[0029] (1) The raw materials are weighed according to the mass percentage of industrial pure copper 19.90%, copper-cobalt alloy 51.50%, copper-phosphorus alloy 28.60%. Wherein the mass percentage of copper in the copper-cobalt alloy is 70.3%, and the mass percentage of cobalt is 29.7%; The mass percentage of copper in the copper-phosphorus alloy is 86.0%, and the mass percentage of phosphorus is 14.0%;

[0030] (2) In a vacuum arc melting furnace, copper-cobalt-phosphorus alloy ingots are melted. The specific steps are as follows: put the prepared raw materials in the copper crucible of the electric arc furnace, adjust to the intermediate frequency, use arc discharge to generate high temperature, control the heating time to 60s, and melt to obtain the mother ingot. Here, the smelting was repeated 5 times to ensure uniform smelting. The surface oxide layer of the alloy master ingot must be removed after each smelting

[0031] (3) The obtained copper-cobalt-phosphorus alloy ma...

Embodiment 2

[0034] (1) The raw materials are weighed according to the mass percentage of industrial pure copper 13.85%, copper-cobalt alloy 50.00%, copper-phosphorus alloy 36.15%. The mass percentage of copper in the copper-cobalt alloy is 80.0%, and the mass percentage of cobalt is 20.0%; the mass percentage of copper in the copper-phosphorus alloy is 91.7%, and the mass percentage of phosphorus is 8.3%.

[0035] (2) In a vacuum arc melting furnace, copper-cobalt-phosphorus alloy ingots are melted. The specific steps are as follows: put the prepared raw materials in the copper crucible of the electric arc furnace, adjust to the intermediate frequency, use arc discharge to generate high temperature, control the heating time to 50s, and melt to obtain the mother ingot. Here, the smelting was repeated 4 times to ensure uniform smelting. After each smelting, the surface oxide layer of the alloy master ingot should be removed.

[0036] (3) The obtained copper-cobalt-phosphorus alloy master ...

Embodiment 3

[0039] (1) The raw materials are weighed according to the mass percentage of industrial pure copper 14.30%, copper-cobalt alloy 28.60%, copper-phosphorus alloy 57.10%. The mass percentage of copper in the copper-cobalt alloy is 93.0%, and the mass percentage of cobalt is 7.0%; the mass percentage of copper in the copper-phosphorus alloy is 93.0%, and the mass percentage of phosphorus is 7.0%.

[0040] (2) In a vacuum arc melting furnace, copper-cobalt-phosphorus alloy ingots are melted. The specific steps are as follows: put the prepared raw materials in the copper crucible of the electric arc furnace, adjust to the intermediate frequency, use arc discharge to generate high temperature, control the heating time to 45s, and melt to obtain the mother ingot. Here, the smelting was repeated 3 times to ensure uniform smelting. After each smelting, the surface oxide layer of the alloy master ingot should be removed.

[0041] (3) The obtained copper-cobalt-phosphorus alloy is subje...

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Abstract

The invention relates to a preparation method of transition metal phosphide Co2P, which belongs to the technical field of transition metal phosphide synthesis. In the preparation method of the present invention, the copper-phosphorus alloy is used as the phosphorus source, and the copper-cobalt alloy or cobalt is used as the cobalt source, and the cobalt source and the phosphorus source are first smelted into a metal ingot in a vacuum arc melting furnace; Co2P can be obtained by treating the iron solution until no bubbles overflow. The phosphorus source of the invention is non-toxic, stable in nature and cheap, and is easy to melt with the cobalt source; the time required for full melting is short; the melting process is stable, easy to control and safe. Vacuum arc melting furnace is used for melting, and the temperature can be controlled by adjusting the frequency, making the melting process adjustable and easy to control, while ensuring the yield of 98.7-100%; using ferric chloride solution for treatment, so that the product purity is as high as 99.3-100% , and at the same time ensure that Co2P is a porous structure with many, small and uniform pores, large specific surface area and high activity.

Description

technical field [0001] The present invention relates to a kind of transition metal phosphide Co 2 The preparation method of P belongs to the technical field of transition metal phosphide synthesis. Background technique [0002] Transition metal phosphides (TM–P) are the general term for binary or multi-component compounds formed by transition metals and phosphorus, which have both metal and semiconductor properties. Having attention. At the same time, as a good catalyst, it is widely used in hydrodesulfurization and denitrogenation, and has been successfully applied in chemical fields such as petroleum processing. As a typical representative of transition metal phosphides, Co–P has a series of physical and chemical properties such as superconductivity, ferromagnetism, magnetocaloric and magnetoresistance effects, photocatalytic performance and lithium ion insertion / release capacity, and is widely used in optoelectronic devices, Magnetic storage devices, magnetic refrigera...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): C01B25/08
Inventor 左敏赵德刚李嘉王振卿
Owner UNIV OF JINAN
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