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Method for preparing ferroplatinum nano-particle

A technology of alloy nanoparticles and iron-platinum, which is applied in the field of nanomaterials, can solve the problems of wide particle size distribution of nanoparticles, harsh reaction conditions, and easy agglomeration of products, and achieve the effects of pollution-free by-products, low cost, and easy-to-obtain raw materials

Inactive Publication Date: 2009-09-09
SHANGHAI NORMAL UNIVERSITY
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

The defects of the above method mainly include: complex process, large environmental pollution, harsh reaction conditions, expensive special reaction device, high production cost, wide particle size distribution of nanoparticles, and easy agglomeration of the obtained product.

Method used

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  • Method for preparing ferroplatinum nano-particle
  • Method for preparing ferroplatinum nano-particle
  • Method for preparing ferroplatinum nano-particle

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0029] The preparation method of the iron-platinum alloy nanoparticles provided by the present embodiment is as follows: first take 0.05mol fourth generation (4G, its chemical structural formula is as follows: figure 1 Shown) take benzene ring as the polyamide-amine dendritic polymer of nucleus, add in 100ml tetraethylene glycol, at room temperature ultrasonic stirring makes it dissolve completely, is mixed with the templating agent solution that concentration is 0.5mol / L; Then Add 0.5mol of iron triacetylacetonate and 0.5mol of platinum diacetylacetonate into the above template solution; perform anaerobic operation and heat the reaction system under the protection of inert gas. 5 minutes; then continue to heat up, when the temperature rises to 200-220°C, keep warm for 5-10 minutes; then continue to heat up, when the temperature rises to 245-265°C, keep warm for 3-5 hours; the reaction is completed, naturally Cool to room temperature, centrifuge the reaction system, rinse the ...

Embodiment 2

[0034] The preparation method of this example is the same as that described in Example 1, except that the template used is 0.05mol of the fifth generation (5G, whose chemical structural formula is as follows: Figure 5 Shown) polyamide-amine dendrimers with benzene ring as the core.

[0035] Image 6 The transmission electron microscope (TEM) photograph of the iron-platinum alloy nanoparticles prepared for this embodiment shows that: this embodiment can obtain iron-platinum alloy nanoparticles with an average particle size of 10 nm, good dispersibility and no agglomeration.

Embodiment 3

[0037] The preparation method of this example is the same as that described in Example 1, except that the template used is 0.05mol of the sixth generation (6G, whose chemical structural formula is as follows Figure 7 Shown) polyamide-amine dendrimers with benzene ring as the core.

[0038] Figure 8 The transmission electron microscope (TEM) photograph of the iron-platinum alloy nanoparticles prepared for this embodiment shows that: this embodiment can obtain iron-platinum alloy nanoparticles with an average particle size of 10 nm, good dispersibility and no agglomeration.

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Abstract

The invention discloses a method for preparing a ferroplatinum nano-particle. The method belongs to a high-temperature liquid phase reduction method. The method comprises the following steps: a dendritic polymer which takes a benzene ring as a core is taken as a template, and polyhydric alcohol is taken as an organic agent and a reducer so that an organic iron compound and an organic platinic compound are dissolved in the polyhydric alcohol solution of the template for gradient heating and multi-stage reaction to prepare the fcc-phase ferroplatinum nano-particle with 4-10nm average particle size, good dispersibility and better superparamagnetism. The method is simple and has the advantages of available raw materials, low cost, mild condition, low equipment requirement, environmental-friendly production process, pollution-free byproducts and large-scale industrialized production.

Description

technical field [0001] The invention relates to a method for preparing iron-platinum alloy nanoparticles, belonging to the technical field of nanomaterials. Background technique [0002] Magnetic materials are ancient and widely used functional materials, which are closely related to all aspects of informatization, automation, mechatronics, national defense and national economy. With the development of nanoscience and technology, magnetic nanomaterials have been widely used in the fields of magnetism, biology and medicine due to their excellent magnetic properties and unique structural characteristics, especially in ultra-high-density information storage, biomolecular recognition, Drug delivery and other aspects have attractive application prospects, which have attracted extensive attention at home and abroad and become a research hotspot. [0003] In recent years, iron-platinum alloys of the fcc type (that is, iron atoms and platinum atoms are arranged in a face-centered c...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): B22F9/24
Inventor 杨仕平张晶晶杨红田启威
Owner SHANGHAI NORMAL UNIVERSITY
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