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Method for preparing transition metal phosphide Fe2P

A technology of transition metals and phosphides, applied in the direction of phosphides, etc., to achieve the effect of novel synthesis method, simplified preparation process and low cost

Inactive Publication Date: 2012-05-09
NANKAI UNIV +1
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

[0009] The technical problem to be solved by the present invention is to overcome the deficiencies in the prior art and provide a simple process that does not require complicated steps such as high temperature and high pressure to prepare Fe 2 New method of P

Method used

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  • Method for preparing transition metal phosphide Fe2P
  • Method for preparing transition metal phosphide Fe2P

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0019] 1. Weigh 0.467 g FePO 4 and 0.20 g KBH 4 , mix well in a mortar;

[0020] 2. React the mixture under the protection of argon at 520°C for 30min; grind the obtained product finely, wash with distilled water and absolute ethanol three times respectively, and then vacuum dry at 60°C for 12h to obtain the product Fe 2 p.

[0021] figure 1 is the XRD pattern of the obtained material. Compared with the standard card, it can be seen that the synthetic material is the standard Fe 2 p.

Embodiment 2

[0023] 1. Weigh 0.467 g FePO 4 and 0.25 g NaBH 4 , mix well in a mortar;

[0024] 2. React the mixture under the protection of argon at 600°C for 30min; grind the obtained product into fine powder, wash with distilled water and absolute ethanol three times respectively, and then vacuum-dry at 60°C for 12h to obtain the product Fe 2 p.

[0025] figure 2 For the prepared Fe 2 TEM image of P. It can be seen from the figure that the Fe 2 P is a spherical particle.

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Abstract

The invention discloses a novel method for preparing transition metal phosphide Fe2P. The method comprises the following steps: taking ferric phosphate as precursor, taking potassium borohydride as reductant, grinding phosphate of ferrum and reductant in a mortar at molar ratio of 1:1.5 to 1:2, and uniformly mixing, and reacting for 30 min under the argon protection at 500 DEG C to 600 DEG C; the product being porphyrized, rinsing for three times respectively with distilled water and absolute ethyl alcohol, then drying with vacuum under 60 DEG C for 12h, and obtaining the product Fe2P. The invention has the advantages that the source of required main material is rich, the price is cheap, and the cost is lower; the synthesis method is novel, the process is simple, the complex steps of high temperature, high pressure and the like can be avoided, the preparation process is simplified, and the energy consumption is reduced; and the environment pollution can not be caused during the preparation process of the adoptedemployed method, and the invention is suitable for mass production.

Description

Technical field [0001] The present invention involves the preparation of transition metal phosphide, and more specifically, it involves a preparation of transition metal phosphopensing iron (Fe 2 P) Method. Background technique [0002] Transition metal phosphorus is an important multifunctional material, which has attracted widespread attention in catalytic and magnetic applications.Among them, Fe 2 P is widely researched and applied as a low -cost and excellent phosphorus. [0003] Existing synthetic Fe 2 The method of p exists in the following disadvantages: [0004] 1. The use of organic phosphorus or hydrogen phosphate is used as a source of phosphorus, which is more toxic; [0005] 2. Water and heat synthesis cannot prepare phosphorus with load type, and the product catalytic activity obtained is poor; [0006] 3. Direct melting method requires a higher temperature, and a large amount of excessive single phosphorus (due to volatilization), the obtained product crystals are ...

Claims

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Application Information

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IPC IPC(8): C01B25/08
Inventor 王一菁王亚平宋大卫李丽苏振馨蔡洪元焦丽芳袁华堂
Owner NANKAI UNIV
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