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Method for preparing PrTiO3 powder

A technology of powder and praseodymium nitrate, applied in chemical instruments and methods, inorganic chemistry, titanium compounds, etc., can solve the problems of high cost, complicated preparation process, and long time consumption, and achieve the effect of low cost and simple operation

Inactive Publication Date: 2017-10-20
佛山市顺德区均安镇永基实业有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

The high-temperature solid-state reaction and physical vapor deposition method at 1500°C require expensive special equipment, and there are disadvantages such as complicated preparation process, long time-consuming and high cost, and the prospect of industrial application is worrying.
[0004] Microwave heating technology has the advantages of fast heating speed, high efficiency, easy control of reaction conditions, easy industrialization, and energy saving and high efficiency. It has a wide range of applications in the field of material preparation, but microwave heating technology is used to assist in the preparation of PrTiO 3 Powder has not been reported yet

Method used

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  • Method for preparing PrTiO3 powder
  • Method for preparing PrTiO3 powder
  • Method for preparing PrTiO3 powder

Examples

Experimental program
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Effect test

Embodiment 1

[0017] At room temperature, dissolve 0.0035 mol of praseodymium nitrate in 100 mL of deionized water to obtain a praseodymium nitrate solution, adjust the pH value of the praseodymium nitrate solution to 1 with 0.5 mol / L dilute nitric acid; 0.042 mol of triammonium citrate was added to the praseodymium nitrate solution, and after the triammonium citrate was dissolved, 0.0035 mol of ethyl titanate was added dropwise to obtain a mixed solution, and the mixed solution was stirred and reacted for 10 minutes to obtain a reaction solution. Put 100mL of the reaction liquid into a microwave oven, react for 25 minutes under the condition of maintaining microwave power of 850W until complete combustion to obtain the primary product, cool to room temperature and take out the primary product, put the primary product in a muffle furnace for calcination at 820°C for 2 hours, cool to room temperature and take out Grind finely to get PrTiO 3 Powder products. Carry out X-ray diffraction (XRD)...

Embodiment 2

[0023] At room temperature, 0.0035mol of praseodymium nitrate was dissolved in 100mL of deionized water to obtain a praseodymium nitrate solution, and the pH value of the praseodymium nitrate solution was adjusted to 1 with dilute nitric acid of 0.5mol / L; 0.042 mol of triammonium citrate was added to the praseodymium nitrate solution of 1, and after the triammonium citrate was dissolved, 0.0035 mol of ethyl titanate was added dropwise to obtain a mixed solution, and the mixed solution was stirred and reacted for 10 minutes to obtain a reaction solution. Put 100mL of the reaction liquid into a microwave oven, react for 25 minutes under the condition of maintaining the microwave power of 950W until the initial product is completely burned, cool to room temperature and take out the initial product, put the initial product in a muffle furnace for calcination at 880°C for 2 hours, cool to room temperature and take out Grind finely to get PrTiO 3 Powder products. According to the s...

Embodiment 3

[0025] At room temperature, 0.0035mol of praseodymium nitrate was dissolved in 100mL of deionized water to obtain a praseodymium nitrate solution, and the pH value of the praseodymium nitrate solution was adjusted to 1 with dilute nitric acid of 0.5mol / L; 0.042 mol of triammonium citrate was added to the praseodymium nitrate solution of 1, and after the triammonium citrate was dissolved, 0.0035 mol of ethyl titanate was added dropwise to obtain a mixed solution, and the mixed solution was stirred and reacted for 10 minutes to obtain a reaction solution. Put 100mL of the reaction liquid into a microwave oven, react for 25 minutes under the condition of maintaining microwave power of 900W until complete combustion to obtain the primary product, cool to room temperature and take out the primary product, put the primary product in a muffle furnace for calcination at 850°C for 2 hours, cool to room temperature and take out Grind finely to get PrTiO 3 Powder products. According to ...

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Abstract

The invention discloses a method for preparing PrTiO3 powder and relates to a method for preparing an ABO3 type rare-earth perovskite-type compound oxide PrTiO3 material. A microwave assisted method is adopted, praseodymium nitrate, titanium ethoxide and ammonium citrate are taken as raw materials, and the PrTiO3 powder with average particle size of around 0.5umm and good in visible-light catalytic activity is prepared. The method includes two steps of preparation of a reaction solution and preparation of a powder product. A new industry is developed for preparation of the PrTiO3 powder product, and purposes of simpleness in operation, rapidness and high efficiency, relatively low cost, and industrial production of the PrTiO3 powder are achieved.

Description

technical field [0001] The present invention relates to rare earth ABO 3 The preparation of type perovskite composite oxide materials, especially related to a preparation of PrTiO 3 powder method. Background technique [0002] PrO 3 (praseodymium titanate) belongs to the class of ABO 3 Type rare earth perovskite composite oxides, as reported in the literature (Journal of Magnetism and Magnetic Materials, 1984, 64: 299-303) PrTiO 3 It is a kind of rare earth perovskite composite oxide material with unique magnetic properties; literature (Journal of Solid State Chemistry, 1981, 40: 241-247) also reported that PrTiO 3 These compounds have attracted extensive attention due to their special magnetic and electrical properties. [0003] Currently, the preparation of PrTiO 3 The methods mainly include high-temperature solid-state reaction method and physical vapor deposition method. As reported in the literature (Journal of Magnetism and Magnetic Materials, 1984, 64: 299-303)...

Claims

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Application Information

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IPC IPC(8): C01G23/00
CPCC01G23/003C01P2002/72C01P2002/80C01P2004/03C01P2004/62
Inventor 唐培松陈海锋吕春燕王永亚王坤燕
Owner 佛山市顺德区均安镇永基实业有限公司
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