Looking for breakthrough ideas for innovation challenges? Try Patsnap Eureka!

A preparation method of one-dimensional coxfe3-xo4 magnetic nanowires with composition gradient

A technology of coxfe3-xo4 and composition gradient, applied in the field of CoxFe3-xO4 one-dimensional magnetic nanowires and their preparation

Active Publication Date: 2016-02-10
瑞安市浙工大技术转移中心
View PDF3 Cites 0 Cited by
  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0003] Among the currently reported synthesized magnetic nanowires, both metals and oxides are homogeneous materials, that is, the components are uniformly distributed in the length direction, which makes a single magnetic nanowire generally only capable of as an information storage unit

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 preparation method of one-dimensional coxfe3-xo4 magnetic nanowires with composition gradient
  • A preparation method of one-dimensional coxfe3-xo4 magnetic nanowires with composition gradient
  • A preparation method of one-dimensional coxfe3-xo4 magnetic nanowires with composition gradient

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0030] (1) FeCl with a purity of 99.99% 3 、CoBr 2 The molar ratio is 2:1 (FeCl 3 2.59g, CoBr 2 1.75g), ground into powder respectively, put into alumina porcelain boats respectively, and put into two small corundum tubes with inner diameter of 5cm and length of 50cm respectively. 1. One end of a large corundum tube with a length of 1m, the direction of the small corundum tube is parallel to the large corundum tube, the other end of the large corundum tube is placed on the substrate, the two small corundum tubes are in a straight line with the substrate as a whole, and the porcelain boat inside the two small corundum tubes The positions are staggered so that FeCl 3 Powder located at CoBr 2 Between powder and matrix, and FeCl 3 Powder and CoBr 2 The distance between the powders in the direction perpendicular to the matrix is, 5cm, FeCl 3 , The distance between the substrates is 10cm.

[0031] (2) Place the large corundum tube in a tube furnace so that the FeCl in the lar...

Embodiment 2

[0034] (1) FeCl with a purity of 99.99% 3 and CoBr 2 The molar ratio is 2:1 (FeCl 3 2.59g, CoBr 2 1.75g), ground into powder respectively, put into alumina porcelain boats respectively, and put into two small corundum tubes with inner diameter of 5cm and length of 50cm respectively. 1. One end of a large corundum tube with a length of 1m, the direction of the small corundum tube is parallel to the large corundum tube, the other end of the large corundum tube is placed on the substrate, the two small corundum tubes are in a straight line with the substrate as a whole, and the porcelain boat inside the two small corundum tubes The positions are staggered so that FeCl 3 Powder located at CoBr 2 Between powder and matrix, and FeCl 3 Powder and CoBr 2 The distance between the powders in the direction perpendicular to the matrix is ​​8 cm, FeCl 3 , The distance between the substrates is 10cm.

[0035] (2) Place the large corundum tube in a tube furnace so that the FeCl in th...

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
lengthaaaaaaaaaa
Login to View More

Abstract

The invention discloses a preparing method of a one-dimensional Co<x>Fe<3-x>O4 magnetic nano wire with a component gradient. The preparing method includes: separately putting FeCl3 powder and CoBr2 powder into a first heating zone of a tube furnace according to a mole ratio of 2:1, putting a substrate into a second heating zone with the FeCl3 powder being put between the CoBr2 powder and the substrate and the distance between the FeCl3 powder and the CoBr2 powder being 5-8 cm, adjusting the temperature of the first heating zone of the tube furnace to be 700-950 DEG C and the temperature of the second heating zone to be 800-1000 DEG C, feeding a carrier gas into the tube furnace, maintaining the temperature for 2-3 h, cooling the tube furnace to the room temperature and taking the substrate out, thus obtaining the one-dimensional Co<x>Fe<3-x>O4 magnetic nano wire with the component gradient with the x being 0.05-0.25. According to the preparing method, the one-dimensional Co<x>Fe<3-x>O4 magnetic nano wire with the component gradient and a large area is prepared under the combination of temperature control and the distance between the substrate and a source substance.

Description

technical field [0001] The present invention relates to a Co with composition gradient x Fe 3-x o 4 One-dimensional magnetic nanowire and its preparation method, specifically in chemical vapor deposition, changing the reaction source material FeCl 3 and CoBr 2 The distance between the two achieves a Co with a compositional gradient x Fe 3-x o 4 Concentration gradients of iron and cobalt required for the growth of magnetic nanowires. Background technique [0002] Nanowire refers to a one-dimensional nanostructured material with a diameter in the nanoscale range (1-100nm) and a high aspect ratio. Nanowires not only have the effects of nanoparticles, such as: quantum size effect, small size effect, surface effect and macroscopic quantum tunneling effect, but also have new effects caused by the combination of nanostructures, such as quantum coupling and synergistic effects, etc., thus showing Unique electronic, magnetic, optical and catalytic properties. For magnetic na...

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): C01G51/00C23C16/40C23C16/46B82Y30/00B82Y40/00
Inventor 胡军张峰陈爱民汪晶
Owner 瑞安市浙工大技术转移中心
Who we serve
  • R&D Engineer
  • R&D Manager
  • IP Professional
Why Patsnap Eureka
  • Industry Leading Data Capabilities
  • Powerful AI technology
  • Patent DNA Extraction
Social media
Patsnap Eureka Blog
Learn More
PatSnap group products

Browse by: Latest US Patents, China's latest patents, Technical Efficacy Thesaurus, Application Domain, Technology Topic, Popular Technical Reports.

© 2024 PatSnap. All rights reserved.Legal|Privacy policy|Modern Slavery Act Transparency Statement|Sitemap|About US| Contact US: help@patsnap.com