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A kind of ferrous sulfide nano powder material with aluminum sulfide shell and preparation method thereof

A ferrous sulfide and nano-powder technology, applied in aluminum sulfide, iron sulfide, nanotechnology for materials and surface science, etc., can solve the problems of FeS nano-powder materials that have not been reported, and achieve easy control and preparation process conditions. simple effect

Inactive Publication Date: 2015-12-09
ANHUI UNIVERSITY OF TECHNOLOGY
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

The search showed that with Al 2 S 3 The FeS nano powder material of the shell has not been reported

Method used

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  • A kind of ferrous sulfide nano powder material with aluminum sulfide shell and preparation method thereof
  • A kind of ferrous sulfide nano powder material with aluminum sulfide shell and preparation method thereof
  • A kind of ferrous sulfide nano powder material with aluminum sulfide shell and preparation method thereof

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0023] 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 iron 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 iron-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 ...

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 iron 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 iron-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 voltage to...

Embodiment 3

[0027] 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 iron 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 is maintained between the cathode graphite electrode and the anode iron-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 voltage to ...

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Abstract

The invention discloses a ferrous sulfide (FeS) 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 FeS nanometer particle, and the casing is an Al2S3 layer; the particle diameter of the FeS 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, ferrous 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 FeS nanometer powdered material with the Al2S3 casing is obtained. The preparation process of the ferrous 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 preparation of nanomaterials, in particular to a 2 S 3 ) shell ferrous sulfide (FeS) nano powder material and 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 FeS with unique properties, it also attracts special attention, because when the temperature exceeds its critical temperature, FeS will produce the 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 cells, hydrodesulfurization catal...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): C01G49/12C01F7/70B82Y30/00B82Y40/00
Inventor 孙玉萍刘先国唐晓娟王逸然
Owner ANHUI UNIVERSITY OF TECHNOLOGY
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