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A kind of magnetic black phosphorus two-dimensional material and preparation method thereof

A two-dimensional material, black phosphorus technology, applied in the field of two-dimensional materials, can solve the problems of difficult reaction and difficult preparation, and achieve the effects of easy operation, simple preparation steps and high yield

Active Publication Date: 2022-07-29
SHENZHEN UNIV
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  • Application Information

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Problems solved by technology

[0006] In view of the above-mentioned deficiencies in the prior art, the purpose of the present invention is to provide a magnetic black phosphorus two-dimensional material, which aims to solve the problems that the existing black phosphorus two-dimensional material is difficult to prepare and the reaction is not easy to control

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  • A kind of magnetic black phosphorus two-dimensional material and preparation method thereof
  • A kind of magnetic black phosphorus two-dimensional material and preparation method thereof
  • A kind of magnetic black phosphorus two-dimensional material and preparation method thereof

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preparation example Construction

[0029] see figure 1 , figure 1 A flowchart of a preferred embodiment of a method for preparing a magnetic black phosphorus two-dimensional material provided by the present invention, as shown in the figure, includes the following steps:

[0030] S10, dissolving the magnetic ionic compound in an organic solvent to obtain an electrolyte;

[0031] S20. Immerse the black phosphorus crystals in the electrolyte, and use an electrochemical method to strip and dope the black phosphorus crystals with magnetic ions in the electrolyte to separate and obtain the magnetic black phosphorus two-dimensional material.

[0032] The magnetic black phosphorus material can be prepared quickly and efficiently by the method provided in this embodiment, and the obtained magnetic black phosphorus material has good magnetic properties and environmental stability. The specific principles of the mechanism to achieve the above effects are as follows:

[0033] In this example, a mixed solution prepared b...

Embodiment 1

[0050] Pour 20 mL of NMP into a clean sample bottle and move it to the glove box. Weigh 519 mg of anhydrous cobalt dichloride (CoCl2) into the sample bottle in the glove box, mix and stir well with the solution, and the mixed solution is at 10000r / Centrifugation was performed at min to remove undissolved magnetic ionic compounds to obtain an electrolyte.

[0051] like figure 2 As shown, in the glove box, pour the configured electrolyte 6 into the electrochemical cell 2, fix the black phosphorus crystal and the Pt negative electrode 3, and put the black phosphorus crystal together with the Pt negative electrode 3 and the Pt positive electrode 4 into the electrochemical cell 2. In the chemical cell, the Pt negative electrode clip 3 is connected to the cathode of the power supply, the Pt positive electrode 4 is connected to the anode of the power supply, and the black phosphorus crystal is kept immersed in the electrolyte. The DC regulated power supply 1 was turned on in a sha...

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Abstract

The invention provides a magnetic black phosphorus two-dimensional material and a preparation method thereof, wherein the method comprises the steps of: dissolving a magnetic ionic compound in an organic solvent to obtain an electrolyte; immersing black phosphorus crystals in the electrolyte, and using The electrochemical method enables the magnetic ions in the electrolyte to exfoliate and dope the black phosphorus crystal to obtain the magnetic black phosphorus two-dimensional material. The magnetic ions in the electrolyte of the invention effectively protect the black phosphorus crystals from being oxidized and decomposed by the surrounding environment, and at the same time, the black phosphorus two-dimensional materials produced are doped with magnetic ions during the peeling process of the black phosphorus crystals. Since the doping of magnetic ions can bind the isolated electrons that cause the instability of black phosphorus, the prepared magnetic black phosphorus two-dimensional material has good environmental stability, and the doped black phosphorus also has good environmental stability. Two-dimensional materials have good magnetic properties.

Description

technical field [0001] The invention relates to the field of two-dimensional materials, in particular to a magnetic black phosphorus two-dimensional material and a preparation method thereof. Background technique [0002] Two-dimensional materials refer to materials in which electrons can only move freely on the non-nanoscale in two dimensions. Since both carrier migration and heat diffusion can only be carried out on two-dimensional planes, such materials exhibit many peculiarities. Features can be applied in many fields. For example, the characteristics of tunable band gap of two-dimensional materials are widely used in field effect transistors, optoelectronic devices, thermoelectric devices, etc. Research; different two-dimensional materials will lead to different anisotropy of electrical properties or optical properties due to the special properties of their crystal structures, including Raman spectroscopy, photoluminescence spectroscopy, second-order harmonic spectrosc...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): C01B25/02B82Y40/00
CPCC01B25/02B82Y40/00
Inventor 曾昱嘉龙方超胡亮徐振宇袁君
Owner SHENZHEN UNIV
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