Nickel or nickel alloy perforated nanosphere and method for manufacturing same

A technology of perforated balls and nickel alloys, applied in the field of metal or alloy powder, can solve the technical problems of difficulty in obtaining powder and other problems, and achieve the effects of improving specific surface, simple and easy process operation and low cost

Inactive Publication Date: 2014-04-30
SHANGHAI JIAO TONG UNIV
View PDF7 Cites 6 Cited by
  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0004] The purpose of the present invention is to provide a nickel or nickel alloy nano-perforated ball to solve the problem of pearl-like metal powder in the prior art. Generally, the metal is deposited on the surface of the oxide or polymer wire, and then removed b

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
  • Nickel or nickel alloy perforated nanosphere and method for manufacturing same
  • Nickel or nickel alloy perforated nanosphere and method for manufacturing same
  • Nickel or nickel alloy perforated nanosphere and method for manufacturing same

Examples

Experimental program
Comparison scheme
Effect test

Example Embodiment

[0042] Example 1 Preparation of nickel-phosphorus alloy nano-perforated balls

[0043] Prepare nickel sulfate, sodium hypophosphite and sodium hydroxide into 2mol / L, 2mol / L and 2mol / L solutions respectively, take 7.5ml nickel sulfate (2mol / L) into a 250ml beaker, and then add 45ml deionized Water, heat the diluted nickel sulfate in a constant temperature water bath at 90±1°C for 8 minutes to make the nickel sulfate temperature about 80°C, then slowly pour 7.5ml of sodium hydroxide (2mol / L) into the diluted In the nickel sulfate solution, stir while pouring, and finally obtain a uniform nickel hydroxide colloid. Put the nickel hydroxide colloid in a 100ml reaction kettle, seal it, heat it up in an oil bath at 120°C to 110°C for 24 hours, cool it naturally, take it out and wash it with deionized water 6 times to obtain a concentration of 0.018mol / L Ni(SO 4 ) 0.3 (OH) 1.4 Nanowire suspension (containing Ni(SO 4 ) 0.3 (OH) 1.4 1.18 grams of nanowires). Ni(SO 4 ) 0.3 (OH) 1.4 The XR...

Example Embodiment

[0044] Example 2 Preparation of nickel-boron alloy nano-perforated balls

[0045] Make nickel sulfate, sodium borohydride and ammonia water into 2mol / L, 2mol / L and 2mol / L solutions respectively, take 9ml nickel sulfate (2mol / L) into a 250ml beaker, and then add 45ml deionized water to dilute The latter nickel sulfate is heated to 70°C for 8 minutes in a constant temperature water bath at 85±1°C, then 9ml of ammonia water is slowly poured into the diluted nickel sulfate solution, while pouring and stirring, finally a uniform nickel hydroxide colloid is obtained . Put the nickel hydroxide colloid in a 100ml reactor, seal it, keep it in a 120℃ oil bath for 24 hours, cool it naturally, take it out and wash it with deionized water 6 times to obtain a nickel hydroxide with a concentration of 0.018mol / L Nanowire suspension (containing 1.37 grams of nickel hydroxide nanowires). Take 10ml of the above nickel hydroxide nanowire suspension, add 1 drop of palladium chloride (1g / L) solution...

Example Embodiment

[0046] Example 3 Preparation of nickel-cobalt-phosphorus alloy nano-perforated balls

[0047] Prepare nickel sulfate, cobalt sulfate, sodium hypophosphite and sodium hydroxide into 2mol / L, 2mol / L, 2mol / L and 2mol / L solutions respectively, take 5ml nickel sulfate (2mol / L) and 2.5ml cobalt sulfate (2mol / L) In a 250ml beaker, add 45ml of deionized water, heat the diluted nickel cobalt sulfate in a constant temperature water bath at 90±1℃ for 8 minutes, and then add 7.5ml of sodium hydroxide (2mol / L) Pour slowly into the diluted nickel cobalt sulfate solution, stir while pouring, and finally obtain a uniform nickel cobalt hydroxide colloid. Put the nickel cobalt hydroxide colloid in a 100ml reactor, seal it, keep it in a 180℃ oil bath for 12 hours, cool it naturally, take it out and wash it with deionized water 6 times to obtain a concentration of 0.018mol / L of hydroxide Nickel-cobalt nanowire suspension (containing 1.17 g of nickel-cobalt hydroxide nanowires). Take 10ml of the ab...

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
Apertureaaaaaaaaaa
Diameteraaaaaaaaaa
Login to view more

Abstract

The invention relates to the technical field of metal or alloy powder, in particular to a nickel or nickel alloy perforated nanosphere and a method for manufacturing the same. The nickel or nickel alloy perforated nanosphere is powdery and contains water, nickel hydroxide, nickel oxide, hydrogen and steam, the aperture of the perforated nanosphere ranges from 20nm to 100nm, and the diameter of the perforated nanosphere ranges from 60nm to 300nm. Compared with the prior art, the nickel or nickel alloy perforated nanosphere and the method have the advantages that the diameter of the nickel or nickel alloy perforated nanosphere reaches a nanometer scale, perforated nano-pores are formed in the nickel or nickel alloy perforated nanosphere, accordingly, the specific surface areas of grains further can be increased, and the electromagnetic performance of nickel or nickel alloy powder can be greatly improved.

Description

technical field [0001] The invention relates to the technical field of metal or alloy powders, in particular to nickel or nickel alloy nano-perforated balls and a preparation method thereof. Background technique [0002] Nickel or nickel alloy powder has been widely used in industrial production as an efficient microwave absorbing material. The electromagnetic properties of nickel or nickel alloy powder are not only affected by the nanonization of the material, but also by the nano-perforation (hollowing) of the material. At present, the preparation of ultra-fine nickel powder is usually prepared by chemical reaction method, and nickel powder in the shape of spherical, granular, fibrous, etc. can be obtained. Making the powder into a hollow or nano-perforated structure further improves the specific surface of the particles, and can be used in industrial production as a high-efficiency microwave absorbing material. [0003] Micron-scale or nano-scale hollow / nano-perforated ...

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
IPC IPC(8): B22F9/24B22F1/00B82Y40/00
Inventor 邓意达王浩然胡文彬刘磊沈彬仵亚停钟澄
Owner SHANGHAI JIAO TONG UNIV
Who we serve
  • R&D Engineer
  • R&D Manager
  • IP Professional
Why Eureka
  • Industry Leading Data Capabilities
  • Powerful AI technology
  • Patent DNA Extraction
Social media
Try Eureka
PatSnap group products

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

© 2024 PatSnap. All rights reserved.Legal|Privacy policy|Modern Slavery Act Transparency Statement|Sitemap