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Preparation method of magnetic nanocomposite material prepared by high temperature pyrolysis

A technology of magnetic nanometer and composite materials, applied in the direction of nanotechnology, inorganic material magnetism, chemical instruments and methods, etc., to achieve the effect of improving monodispersity, high product purity, and improving stability

Inactive Publication Date: 2015-09-30
三亚哈尔滨工程大学南海创新发展基地
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0004] To sum up, there are no reports or routes that have general significance and can be applied to different high-temperature pyrolysis methods to prepare high-performance optomagnetic functional nanocomposites.

Method used

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  • Preparation method of magnetic nanocomposite material prepared by high temperature pyrolysis
  • Preparation method of magnetic nanocomposite material prepared by high temperature pyrolysis
  • Preparation method of magnetic nanocomposite material prepared by high temperature pyrolysis

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Experimental program
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Effect test

specific Embodiment approach 1

[0025] Embodiment 1: CoO magnetic nanomaterials are prepared by a high temperature pyrolysis method.

[0026] First weigh the Co oleate Co(C 18 h 33 o 2 ) 3 1.243g was placed in a container, then 20mL of paraffin oil and 0.2g of PIBSI were added, the temperature was raised to 150°C and nitrogen gas was passed for 1h. Under the protection of nitrogen, the temperature of the system was raised to 310° C. and kept for 2 hours. After the reaction, cool naturally, and when the temperature drops to 70°C, add a mixed solution of n-hexane and ethanol (volume ratio: 2:1). Store in 5mL of n-hexane to obtain CoO magnetic nanomaterials.

specific Embodiment approach 2

[0027] Specific embodiment two, adopt high temperature pyrolysis method to prepare CoFe 2 o 4 magnetic nanomaterials.

[0028] First take by stoichiometric ratio the oleate of Co and the oleate of iron and place in container: 0.41477g Co (C 18 h 33 o 2 ) 3 , 1.19997g Fe(C 18 h 33 o 2 ) 3 , then add 20mL paraffin oil, 0.2g PIBSI, raise the temperature to 150°C and blow nitrogen for 1h. Under the protection of nitrogen, the temperature of the system was raised to 310° C. and kept for 2 hours. After the reaction, cool naturally, and when the temperature drops to 70°C, add a mixed solution of n-hexane and ethanol (volume ratio: 2:1). Store in 5mL n-hexane to get CoFe 2 o 4 magnetic nanomaterials.

specific Embodiment approach 3

[0029] Embodiment 3: MnO magnetic nanomaterials are prepared by a high-temperature pyrolysis method.

[0030] First weigh the Mn oleate Mn(C 18 h 33 o 2 ) 3 1.235g was placed in a container, then 20mL of paraffin oil and 0.2g of PIBSI were added, the temperature was raised to 150°C and nitrogen gas was passed for 1h. Under the protection of nitrogen, the temperature of the system was raised to 310° C. and kept for 2 hours. After the reaction, cool naturally, and when the temperature drops to 70°C, add a mixed solution of n-hexane and ethanol (volume ratio: 2:1). Store in 5mL of n-hexane to obtain CoO magnetic nanomaterials.

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Abstract

The invention provides a preparation method for preparing a magnetic nano-composite material by using a high-temperature pyrolysis method. The method comprises the followings steps: adding 0.2-2g of oleate, 2-20mL of paroline and 0.02-0.2g of polyisobutylene succinimide into a container, introducing nitrogen, and heating to 150 DEG C for reacting for 1 hour; heating to 270-330 DEG C, introducing nitrogen, and magnetically stirring for reacting for 0.5-4 hours; cooling to the room temperature; adding 20mL of mixed solution of normal hexane and ethyl alcohol in the volume ratio of 2:1, and separating to obtain the product. Compared with other methods, the design route of the method has the characteristics of high product purity, uniform grain distribution and environmental friendliness. More importantly, the obtained material is high in magnesium, and is a good contrast agent material for use in magnetic resonance imaging (MRI).

Description

technical field [0001] The invention relates to a preparation method of a magnetic nanocomposite material. Specifically, it is a method for preparing multifunctional nano-composite materials by high-temperature pyrolysis. Background technique [0002] In the past decade, the study of metals and metal oxides with unique magnetic properties has received great attention because of the wide range of applications of such materials in mechanics, electricity, optics, magnetism, chemistry and biology. Especially in recent years, the research of magnetic nanoparticles in the field of magnetic resonance imaging (MRI) is the focus of attention. MRI technology can perform "non-invasive" and clear 3D imaging of cells or human tissues, and provide precise anatomical information, so it has played an important role in many fields. Magnetic nanoparticles are often used as contrast agents in the field of MRI to improve the contrast and clarity of MRI images. The development of magnetic nan...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): C01G51/04C01G51/00C01G45/02C01G49/00H01F1/01B82Y40/00
Inventor 杨飘萍杨桂欣盖世丽徐洁王琳张圣欢李磊
Owner 三亚哈尔滨工程大学南海创新发展基地