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Nickel sulfide nanometer powdered material with aluminium sulfide casing and preparation method thereof

A nano-powder and nano-material technology, applied in the field of nickel sulfide nano-powder material and its preparation, can solve the problems such as no report of NiS nano-powder material, and achieve the effects of easy control and simple preparation process conditions.

Inactive Publication Date: 2015-03-04
ANHUI UNIVERSITY OF TECHNOLOGY
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

with Al 2 S 3 The NiS nano-powder material of the shell has not been reported

Method used

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  • Nickel sulfide nanometer powdered material with aluminium sulfide casing and preparation method thereof
  • Nickel sulfide nanometer powdered material with aluminium sulfide casing and preparation method thereof
  • Nickel sulfide nanometer powdered material with aluminium sulfide casing and preparation method thereof

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0023] Will figure 1 The upper cover 1 of the shown device is opened, and the cathode 2 is fixed on the chuck 8 with graphite. The composition of the consumed anode target 4 is a block made of pure nickel powder and pure aluminum powder (atomic ratio 99:1). It is placed on the copper anode 7 passing through the cooling water, and there is a graphite crucible 9 between the copper anode passing through the cooling water and the target. A distance of 30 mm is maintained between the cathode graphite electrode and the anode nickel-aluminum powder block. Cover the upper cover 1 of the device, pass cooling water a, and after the whole working chamber is evacuated through the valve 3, argon gas b and hydrogen sulfide gas c are passed in, the partial pressure of argon gas is 0.5Mpa, and the partial pressure of hydrogen sulfide gas is 0.3Mpa , Connect the DC pulsating power supply 10 with a voltage of 40V. During the arc discharge process, adjust the working current and voltage to kee...

Embodiment 2

[0025] Will figure 1 The upper cover 1 of the shown device is opened, and graphite is used as the cathode 2 to fix it on the chuck 8. The composition of the consumed anode target 4 is a block made of pure nickel powder and pure aluminum powder (atomic ratio 95:5). It is placed on the copper anode 7 passing through the cooling water, and there is a graphite crucible 9 between the copper anode passing through the cooling water and the target. A distance of 2 mm is maintained between the cathode graphite electrode and the anode nickel-aluminum powder block. Cover the upper cover 1 of the device, pass cooling water a, and after the whole working chamber is evacuated through the valve 3, argon gas b and hydrogen sulfide gas c are passed in, the partial pressure of argon gas is 0.01Mpa, and the partial pressure of hydrogen sulfide gas is 0.01Mpa , and connect the DC pulse power supply 10 with a voltage of 10V. During the arc discharge process, adjust the working current and voltag...

Embodiment 3

[0027] Will figure 1 The upper cover 1 of the device shown is opened, and graphite is used as the cathode 2 to fix it on the chuck 8. The composition of the consumed anode target 4 is a block made of pure nickel powder and pure aluminum powder (atomic ratio 98:2). It is placed on the copper anode 7 passing through the cooling water, and there is a graphite crucible 9 between the copper anode passing through the cooling water and the target. A distance of 10 mm was maintained between the cathode graphite electrode and the anode nickel-aluminum powder block. Cover the upper cover 1 of the device, pass cooling water a, and after the whole working chamber is evacuated through the valve 3, argon gas b and hydrogen sulfide gas c are passed in, the partial pressure of argon gas is 0.1Mpa, and the partial pressure of hydrogen sulfide gas is 0.1Mpa , Connect the DC pulsating power supply 10 with a voltage of 20V. During the arc discharge process, adjust the working current and voltag...

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Abstract

The invention discloses a nickel sulfide (NiS) nanometer powdered material with an aluminium sulfide (Al2S3) casing and a preparation method thereof, and belongs to the technical field of preparing nanometer materials. The nanometer powdered material is in a core-shell structure, a kernel is an NiS nanometer particle, and the casing is an Al2S3 layer; the particle diameter of the NiS nanometer particle kernel is 10-100 nm, and the Al2S3 casing layer is an amorphous Al2S3 layer of which the thickness is 1-10 nm. According to the invention, a plasma arc discharge method is adopted, according to a certain atomic percent, nickel powder and aluminium powder are pressed into a block which is used as an anode material, a graphite is used as a cathode material, an argon gas and a hydrogen sulfide gas are used as a work gas, a certain distance is kept between a cathode and an anode, and arc discharge is generated between the cathode and the anode, so that the NiS nanometer powdered material with the Al2S3 casing is obtained. The preparation process of the nickel sulfide nanometer powdered material is simple, post-processing working procedures are avoided, and the cost is low, so that industrialized production is easy to realize.

Description

technical field [0001] The invention belongs to the technical field of nanometer material preparation, in particular to a nickel sulfide (NiS) nanometer powder material with an aluminum sulfide (Al2S3) shell and a preparation method thereof. Background technique [0002] Metal sulfides are a very important class of semiconductor materials. The broad application prospects of metal sulfide nanomaterials in photocatalytic materials, luminescent materials, nonlinear optical materials and photosensitive sensor materials have aroused strong research interest. Sulfide semiconductors play an increasingly important role in our production and life. As a kind of NiS with unique properties, it also attracts special attention, because when the temperature exceeds its critical temperature, NiS will undergo a transformation of magnetic and electrical properties, that is, from a paramagnetic conductor to an antiferromagnetic semiconductor. It has a wide range of applications in solar cell...

Claims

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Application Information

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IPC IPC(8): C01G53/11C01F7/70B82Y30/00B82Y40/00
Inventor 孙玉萍刘先国徐丽侠王逸然
Owner ANHUI UNIVERSITY OF TECHNOLOGY
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