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Preparing method of sea-urchin-shaped amorphous Ni-B alloy nanometer materials

An alloy nanomaterial, amorphous technology, applied in the field of Ni-B alloy nanomaterials, can solve the problems of low performance, reduction of Ni cations, low specific surface area, etc., and achieve the effect of high selectivity

Inactive Publication Date: 2015-01-21
CHENGDU UNIVERSITY OF TECHNOLOGY
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  • Summary
  • Abstract
  • Description
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  • Application Information

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Problems solved by technology

However, so far, there are few examples of successful preparation of Ni-B alloys with good microstructure, which may be due to the combination with BH 4 - The strong exothermic reaction of , resulting in an uncontrollable reduction of Ni cations during the preparation
Therefore, conventional Ni-B with irregular shape has a low specific surface area, making its performance lower

Method used

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  • Preparing method of sea-urchin-shaped amorphous Ni-B alloy nanometer materials
  • Preparing method of sea-urchin-shaped amorphous Ni-B alloy nanometer materials
  • Preparing method of sea-urchin-shaped amorphous Ni-B alloy nanometer materials

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0038] In order to achieve the above object, the preparation steps of concrete Ni-B amorphous sea urchin are:

[0039] 1) 40mL NH 3 h 2 O solution (25%) was mixed with 10 mL of nickel chloride (0.0085 mol) to form Ni(NH 3 ) 6 2+ mixed solution;

[0040] 2) At 298K temperature, 32mL KBH 4 Aqueous solution (1.0M) and PVA0.001M were added under argon atmosphere;

[0041] 3) The prepared product was obtained after liquid phase plasma technology treatment for 5 minutes;

[0042] 4) Wash it once with deionized water, and then wash it three times with absolute ethanol;

[0043] 5) Store samples in ethanol until use.

Embodiment 2

[0045] 1) 40mL NH 3 h 2 O solution (25%) was mixed with 10 mL of nickel chloride (0.0085 mol) to form Ni(NH 3 ) 6 2+ mixed solution;

[0046] 2) At 298K temperature, 32mL KBH 4 Aqueous solution (1.0M) and PVA0.002M were added under argon atmosphere;

[0047] 3) The prepared product was obtained after liquid phase plasma technology treatment for 5 minutes;

[0048] 4) Wash it once with deionized water, and then wash it three times with absolute ethanol;

[0049] 5) Store samples in ethanol until use.

Embodiment 3

[0051] 1) 40mL NH 3 h 2 O solution (25%) was mixed with 10 mL of nickel chloride (0.0085 mol) to form Ni(NH 3 ) 6 2+ mixed solution;

[0052] 2) At 298K temperature, 32mL KBH 4 Aqueous solution (1.0M) and PVA0.003M were added under argon atmosphere;

[0053] 3) The prepared product was obtained after liquid phase plasma technology treatment for 5 minutes;

[0054]4) Wash it once with deionized water, and then wash it three times with absolute ethanol;

[0055] 5) Store samples in ethanol until use.

[0056] The performance of sea urchin shape amorphous Ni-B alloy nano material of the present invention:

[0057] The material prepared in Example 1 was characterized by STEM, figure 1 It is a low-magnification STEM image of the sample. It can be seen that the sea urchin-like Ni-B particles have been successfully prepared with an average particle size of about 240nm, and they are assembled from nanorods ( figure 2 ). High-resolution STEM images reveal that nanorods make...

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Abstract

The invention discloses a preparing method of sea-urchin-shaped amorphous Ni-B alloy nanometer materials. A liquid phase plasma technology is used for synthesizing sea-urchin-shaped Ni-B particles with mesoporous structures successfully. Compared with amikacin and kanamycin, high antimicrobial activity on pseudomonas aeruginosa is especially achieved. Compared with conventional Ni-B, sea-urchin-shaped Ni-B is higher in magnetism. Meanwhile, compared with Raney Ni and traditional Ni-B, the sea-urchin-shaped Ni-B is higher in N2H4 dehydrogenation catalyzing performance. The catalyzing performance is enhanced due to the high specific surface area and the enhanced inherent activity determined by the unique structure. In the current research results, the sea-urchin-shaped Ni-B has antibacterial effect, magnetism and catalytic dehydrogenation performance, and the application range can be widened from medical instrument coating to direct wound or burn injury treating and the field of magnetic equipment and catalyzing.

Description

technical field [0001] The invention relates to the technical field of Ni-B alloy nanomaterials, in particular to a preparation method of sea urchin-shaped amorphous Ni-B alloy nanomaterials. Background technique [0002] In recent years, due to the unique properties of amorphous Ni–B alloys, such as a large number of coordinative unsaturation sites, chemical stability, and isotropic structure, its wide potential application in catalysts, coatings, magnetic materials, and antibacterial materials has attracted extensive research on it. It is well known that the microstructure of amorphous metal boride alloys plays a crucial role in their properties. However, so far, there are few examples of successful preparation of Ni-B alloys with good microstructure, which may be due to the combination with BH 4 - The strong exothermic reaction of , makes the uncontrollable reduction of Ni cations during the preparation process. Therefore, conventional Ni-B with an irregular shape has...

Claims

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Application Information

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IPC IPC(8): B22F9/24B82Y40/00
Inventor 童东革杨帆傅仕艳吴平邓苗
Owner CHENGDU UNIVERSITY OF TECHNOLOGY
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