Unlock instant, AI-driven research and patent intelligence for your innovation.

Method for preparing Fe-Ni-Pt alloy nanorod

A platinum alloy and nanorod technology, applied in the field of materials, achieves the effects of stable reaction system, convenient and simple product processing, and easy industrialization

Inactive Publication Date: 2012-03-07
TONGJI UNIV
View PDF4 Cites 0 Cited by
  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

In the current preparation methods of FePt nano-alloys, chemical methods are mainly thermal decomposition of iron salts and reduction of platinum salts, co-reduction of iron-platinum metal salts, electrochemical deposition, etc.; physical methods are mainly mechanical cold deformation, magnetic Controlled sputtering method, vacuum evaporation method, ball milling method, rapid quenching technology, etc., there is no literature report to prepare iron-nickel-platinum alloy nanorods

Method used

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
View more

Image

Smart Image Click on the blue labels to locate them in the text.
Viewing Examples
Smart Image
  • Method for preparing Fe-Ni-Pt alloy nanorod
  • Method for preparing Fe-Ni-Pt alloy nanorod
  • Method for preparing Fe-Ni-Pt alloy nanorod

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0037] 1. Fully dissolve 0.000031mol of ferrous chloride tetrahydrate, 0.0000069mol of nickel chloride hexahydrate and 0.000031mol of chloroplatinic acid hexahydrate in 2ml of absolute ethanol, and ultrasonically shake until mixed evenly.

[0038] 2. Accurately measure 2ml of oleic acid, weigh 0.02g of sodium oleate and mix evenly, then fully mix with 4ml of 1,2-propanediol, add to the system of step (1), ultrasonicate until mixed evenly, and then mix the whole The system was added together into the reaction autoclave, heated to 170°C at a heating rate of 1°C / min, and kept at 170°C for 3 hours. After the reaction, wash with ethanol repeatedly and centrifuge the product 3 times to obtain the desired product, and finally the product can be redispersed in absolute ethanol or chloroform. From figure 1 The existence of the product can be clearly seen in the TEM electron microscope photos shown.

Embodiment 2

[0040] The synthesis procedure is similar to Example 1, except that heating to 170° C. at a heating rate of 1° C. / min is replaced by heating to 180° C. at a heating rate of 5° C. / min. From figure 2 The existence of the product can be clearly seen in the TEM electron microscope photos shown.

Embodiment 3

[0042] The synthesis steps are similar to Example 1, except that heating to 170° C. at a heating rate of 1° C. / min is replaced by heating to 160° C. at a heating rate of 10° C. / min. From image 3 The existence of the product can be clearly seen in the TEM electron microscope photos shown.

[0043] Photo by TEM electron microscope figure 1 , figure 2 , image 3 It can be seen that when the heating rate increases from 1 °C / min to 10 °C / min, the length of the nanorods becomes shorter as the heating rate increases.

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
Login to View More

PUM

No PUM Login to View More

Abstract

The invention belongs to the material technical field and in particular relates to a method for preparing Fe-Ni-Pt alloy nanorod, comprising the following steps: iron-bearing inorganic salt or iron-bearing organic salt, cobalt-bearing inorganic salt or cobalt-bearing organic salt and platinum-bearing inorganic salt are used as precursors; the pre-reaction material, organic solvent, a surfactant, a stabilizer and a reducing agent are put in an autoclave, heated to 150-180 DEG C under the heating rate of 1-10 DEG C / min and then insulated for 3-30 hours to prepare the required product. With veryhigh practicality, the method can control the appearance of the produced Fe-Ni-Pt alloy nanorod. The reaction system is comparatively stable, and the technical operation is simple. Especially, the byproduct processing is convenient and easy. No other impurities can be introduced. The cost of raw materials is low. And the method is easy for the industrialized production.

Description

technical field [0001] The invention belongs to the technical field of materials, and in particular relates to a method for preparing iron-nickel-platinum alloy nanorods. Background technique [0002] With the development of science and technology, information expands rapidly. The requirements for storage media are also getting higher and higher. Magnetic storage technology has been widely used because of its advantages of large storage capacity and relatively low price, especially the application of giant magnetoresistive magnetic heads, which has significantly improved storage density. However, with the reduction of the particle size of the recording medium in the traditional horizontal magnetic recording method, the superparamagnetic effect makes the recording density almost reach the upper limit (~100Gb / in2). At the same time, the reduction of the particle size of the magnetic medium also reduces its thermal stability. In order to improve storage density and stability...

Claims

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
Login to View More

Application Information

Patent Timeline
no application Login to View More
Patent Type & Authority Patents(China)
IPC IPC(8): C30B29/62B22F9/24C30B29/52H01F1/047C30B7/10H01F1/06
Inventor 朱远征温鸣王亚芬张凡
Owner TONGJI UNIV