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

Preparation method of super-long one-dimensional structure magnetic material under magnetic field induction

A technology of magnetic materials and dimensional structures, applied in the direction of magnetic materials, magnetic objects, inductors/transformers/magnets, etc., to achieve the effects of ultra-long structure with few defects, low cost and simple process

Inactive Publication Date: 2018-09-28
徐靖才
View PDF4 Cites 9 Cited by
  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, the current research on magnetic field-induced synthesis of one-dimensional structures is still in the exploratory stage, and it is necessary to further enrich the regulation of the magnetic field-induced synthesis method on the structure of nanomaterials and related synthesis mechanisms, and further broaden its application range.

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
  • Preparation method of super-long one-dimensional structure magnetic material under magnetic field induction
  • Preparation method of super-long one-dimensional structure magnetic material under magnetic field induction

Examples

Experimental program
Comparison scheme
Effect test

specific Embodiment approach 1

[0013] Specific embodiment 1: A preparation method of a magnetic field-induced ultra-long one-dimensional magnetic material, which is specifically completed according to the following steps: 1. 0.01g nickel nanospheres (400 nm) are mixed with 0.5g NiCl 2 ·6H 2 2. Add 2g of hexadecyl trimethyl ammonium bromide to the above solution and mix thoroughly; 3. Slowly add 2ml of reducing agent hydrazine hydrate solution dropwise to form a microemulsion; 4. Move the above solution to a hydrothermal reactor with an external magnetic field, and adjust the height of the reactor and the external magnetic field source to make the external magnetic field 780G, the hydrothermal temperature 200 °C, and the time for 12h; After separation, washing with deionized water, washing with ethanol, and drying at 80 °C for 12 h, the ultra-long one-dimensional magnetic material was obtained.

specific Embodiment approach 2

[0014] Specific embodiment 2: A preparation method of a magnetic field-induced ultra-long one-dimensional magnetic material, which is specifically completed by the following steps: 1. 0.02g nickel nanospheres (500 nm) are mixed with 0.5g NiCl 2 ·6H 2 2. Add 40ml of water and 40ml of ethanol and fully stir; 2. Add 1 g of cetyltrimethylammonium bromide to the above solution and mix thoroughly; 3. Slowly add 2ml of reducing agent hydrazine hydrate solution dropwise to form a microemulsion; 4. Move the above solution to a hydrothermal reactor with an external magnetic field, adjust the height of the reactor and the external magnetic field source so that the external magnetic field is 72G, the hydrothermal temperature is 140 ℃, and the time is 12h; After separation, washing with deionized water, washing with ethanol, and drying at 60 °C for 12 h, the ultra-long one-dimensional magnetic material was obtained.

specific Embodiment approach 3

[0015] Specific Embodiment 3: A preparation method of a magnetic field-induced ultra-long one-dimensional magnetic material, which is specifically completed according to the following steps: 1. 0.01g Co nanospheres are mixed with 0.5g CoCl 2 ·6H 2 2. Add 40ml of water and 40ml of ethanol and fully stir; 2. Add 2g of cetyltrimethyl ammonium bromide to the above solution and mix thoroughly; 3. Slowly add 3ml of reducing agent hydrazine hydrate solution dropwise to form a microemulsion; 4. Move the above solution to a hydrothermal reactor with an external magnetic field, adjust the height of the reactor and the external magnetic field source so that the external magnetic field is 230G, the hydrothermal temperature is 210 °C, and the time is 4h; After separation, washing with deionized water, washing with ethanol, and drying at 80 °C for 8 h, the ultra-long one-dimensional magnetic material was obtained.

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 magnetic nano-particles are used as the precursor, the regulation on the magnetic field intensity is realized by regulating reaction kettle height and an external magnetic field source, and the super-long one-dimensional linear structure magnetic material is synthesized by utilizing micro-emulsion-hydrothermal method under external magnetic field induction. The preparation method comprises thefollowing parts: (1) micro-emulsion formation process; (2) linear arrangement of magnetic field induction effect; (3) hydrothermal nucleating regulation and one-dimensional structure material synthesis; and (4) magnetic separation. The preparation method has the following advantages: (1) the one-dimensional linear material synthesis can be realized without using a template agent, the process is simple and the cost is low; and (2) the super-long one-dimensional structure material is synthesized by taking a nanometer structure unit as the raw material, and the defect is less.

Description

technical field [0001] The invention relates to a preparation method of a magnetic field-induced ultra-long one-dimensional structure magnetic material, which uses a microemulsion-hydrothermal method to synthesize an ultra-long one-dimensional structure magnetic material under the induction of an external magnetic field, belonging to the technical field of functional materials and chemical synthesis. Background technique [0002] In recent years, with the gradual maturity of the understanding of the orientation behavior of particles in the magnetic field, the magnetic field has become a new driving force for self-assembly. The use of magnetic fields to prepare new materials with regular organization has become a new research direction for the preparation of ordered materials. The power of particle self-assembly in the magnetic field comes from two aspects: First, the particle has magnetic anisotropy. After being subjected to the magnetic field force, a magnetic moment is gen...

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 Applications(China)
IPC IPC(8): H01F41/00H01F1/00B82Y40/00
CPCB82Y40/00H01F1/0072H01F41/00
Inventor 王新庆王攀峰徐靖才韩雁冰金红晓洪波彭晓领金顶峰葛洪良
Owner 徐靖才