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

A method for preparing platinum-based binary alloy nanoparticles using transition metal oxides and platinum metal nanoparticles as precursors

A platinum nanoparticle and nanoparticle technology, applied in the field of preparing platinum-based binary alloy nanoparticles, can solve the problems of uneven material shape and size, harsh preparation process conditions of platinum-based binary alloy nanoparticles, etc., and achieve easy expansion The effect of advanced production, uniform shape and size, and favorable industrial production

Active Publication Date: 2022-03-22
HARBIN INST OF TECH
View PDF11 Cites 0 Cited by
  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0005] The present invention aims to solve the technical problems of harsh conditions in the preparation process of existing platinum-based binary alloy nanoparticles and non-uniform material morphology and size, and provides a method for preparing platinum with transition metal oxides and platinum metal nanoparticles as precursors. Method based on binary alloy nanoparticles

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
  • A method for preparing platinum-based binary alloy nanoparticles using transition metal oxides and platinum metal nanoparticles as precursors
  • A method for preparing platinum-based binary alloy nanoparticles using transition metal oxides and platinum metal nanoparticles as precursors
  • A method for preparing platinum-based binary alloy nanoparticles using transition metal oxides and platinum metal nanoparticles as precursors

Examples

Experimental program
Comparison scheme
Effect test

specific Embodiment approach 1

[0030] Specific Embodiment 1: This embodiment is a method for preparing platinum-based binary alloy nanoparticles using transition metal oxides and platinum metal nanoparticles as precursors, specifically as follows:

[0031] Add oleylamine into the three-necked flask, start stirring, pass argon into the three-necked flask at room temperature to exhaust the air, and heat the mixed system to 120°C at a heating rate of 5°C / min~10°C / min under the protection of argon ~125°C, inject the n-hexane solution of platinum nanoparticles and the n-hexane solution of transition metal oxide nanoparticles into the three-necked flask, keep warm for 1h~1.5h under the protection of argon and at a temperature of 120°C~125°C for evaporation For n-hexane in the system, under the protection of argon, heat the mixed system to 350 ° C ~ 370 ° C at a heating rate of 5 / min ~ 10 ° C / min and keep it warm for 9 h ~ 10 h. After the reaction is completed, it is cooled under the protection of argon to At ...

specific Embodiment approach 2

[0038] Embodiment 2: The difference between this embodiment and Embodiment 1 is that the transition metal oxide nanoparticles in the n-hexane solution of the transition metal oxide nanoparticles are iron ferric oxide nanoparticles. Others are the same as the first embodiment.

specific Embodiment approach 3

[0039] Embodiment 3: This embodiment differs from Embodiment 1 or Embodiment 2 in that the transition metal oxide nanoparticles in the n-hexane solution of the transition metal oxide nanoparticles are cobalt oxide nanoparticles. Others are the same as those in Embodiment 1 or 2.

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

PropertyMeasurementUnit
sizeaaaaaaaaaa
sizeaaaaaaaaaa
sizeaaaaaaaaaa
Login to View More

Abstract

The invention discloses a method for preparing platinum-based binary alloy nanoparticles by using transition metal oxides and platinum metal nanoparticles as precursors, and relates to a method for preparing platinum-based binary alloy nanoparticles. The invention aims to solve the technical problems of harsh conditions in the preparation process of the existing platinum-based binary alloy nanoparticles and non-uniform material appearance and size. The invention uses simple transition metal oxide nanoparticles and platinum metal nanoparticles as precursors without any surfactant, and heats them in oleylamine to 350° C. to obtain binary alloy nanoparticles of transition metals and platinum. The invention uses a non-toxic, simple and easy-to-obtain precursor, the raw material cost is low in the preparation process, the process is simple and controllable, the economic cost is reduced, and it is beneficial to industrialized production.

Description

technical field [0001] The invention relates to a method for preparing platinum-based binary alloy nanoparticles. Background technique [0002] Binary platinum-based alloys, such as iron-platinum and cobalt-platinum nanoparticles, have two phase structures, namely face-centered tetragonal structure and face-centered cubic structure. The iron / cobalt and platinum atoms in the face-centered tetragonal nanoparticles are distributed in layers in the crystal lattice, which is a chemically ordered phase and thus has a high magnetocrystalline anisotropy (K FePt =7×10 6 J / m 3 , K CoPt =4.9×10 6 J / m 3 ) and high coercive force, is an excellent hard magnetic material. However, iron-platinum and cobalt-platinum alloy nanoparticles with a face-centered cubic structure belong to a chemically disordered phase due to the random distribution of iron / cobalt and platinum atoms in the lattice, so they are a kind of soft magnetic material. [0003] In recent years, with the development of...

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): B22F9/20B22F1/054C22C5/04B82Y30/00
CPCC22C5/04B82Y30/00B22F9/20B22F1/054
Inventor 于永生雷文娟杨微微
Owner HARBIN INST OF TECH