Blue phosphorus/transition metal disulfide heterojunction anode material and preparation method thereof

A transition metal and disulfide technology, applied in the field of nanomaterials, can solve the problems of high research cost and low research and development efficiency, and achieve the effects of simple preparation process, good structural stability and strong repeatability

Active Publication Date: 2017-02-08
FUZHOU UNIV
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

The research and development of "stir-fried dishes" prepared purely through experim

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  • Blue phosphorus/transition metal disulfide heterojunction anode material and preparation method thereof
  • Blue phosphorus/transition metal disulfide heterojunction anode material and preparation method thereof
  • Blue phosphorus/transition metal disulfide heterojunction anode material and preparation method thereof

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Embodiment 1

[0027] A kind of blue phosphorus / transition metal disulfide heterojunction anode material, its raw material composition is as follows: by molar ratio: NbO 3 : white phosphorus powder: sulfur powder: dimethyl sulfoxide = 2:1:7:16.

[0028] Concrete preparation steps are as follows:

[0029] (1) Weigh NbO according to the formula ratio 3 , white phosphorus, sulfur powder, and dimethyl sulfoxide;

[0030] (2) Ultrasonic cleaning of the glass substrate with acetone solution to remove organic dirt on the surface of the glass substrate, and ultrasonic cleaning of the glass substrate with alcohol to remove acetone on the surface of the glass substrate, followed by rinsing with deionized water for 3 times;

[0031] (3) The glass substrate and NbO 3 The powder is placed in the reaction chamber of plasma enhanced chemical vapor deposition, and the vacuum is evacuated to 3×10 4 Pa, the high-purity protective gas Ar is introduced, and the flow rate is controlled at 35sccm; the sulfur ...

Embodiment 2

[0035] A kind of blue phosphorus / transition metal disulfide heterojunction anode material, its raw material composition is as follows: by molar ratio: TaO 3 : white phosphorus: sulfur powder: organic solvent = 2:1:7:16.

[0036] Wherein the organic solvent is: N, N-dimethylformamide:N-methylpyrrolidone=1:3 in molar ratio.

[0037] (1) Weigh TaO according to the formula ratio 3 , white phosphorus, sulfur powder, N, N-dimethylformamide and N-methylpyrrolidone mixed organic solvent materials;

[0038] (2) Ultrasonic cleaning of the glass substrate with acetone solution to remove organic dirt on the surface of the glass substrate, and ultrasonic cleaning of the glass substrate with alcohol to remove acetone on the surface of the glass substrate, followed by rinsing with deionized water for 3 times;

[0039] (3) The glass substrate and TaO 3 The powder is placed in the reaction chamber of plasma enhanced chemical vapor deposition, and the vacuum is evacuated to 4×10 4 Pa, the h...

Embodiment 3

[0043] A kind of blue phosphorus / transition metal disulfide heterojunction anode material, its raw material composition is as follows: by molar ratio: MoO 3 : White phosphorus: Tellurium powder: Methanol=2:1:7:16.

[0044] (1) Weigh MoO according to the formula ratio 3 , white phosphorus, tellurium powder, and methanol;

[0045] (2) Ultrasonic cleaning of the glass substrate with acetone solution to remove organic dirt on the surface of the glass substrate, and ultrasonic cleaning of the glass substrate with alcohol to remove acetone on the surface of the glass substrate, followed by rinsing with deionized water for 5 times;

[0046] (3) The glass substrate and MoO 3 The powder is placed in the reaction chamber of plasma enhanced chemical vapor deposition, and the vacuum is evacuated to 3.5×10 4 Pa, the high-purity protective gas Ar is introduced, and the flow rate is controlled at 45sccm; the tellurium powder is heated to 990°C through a heating furnace to be converted int...

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Abstract

The invention relates to a blue phosphorus/transition metal disulfide heterojunction anode material and a preparation method thereof. According to the technical scheme, the method comprises the following steps of: based on computational simulation of a first principle method of a density function theory, screening a blue phosphorus/transition metal disulfide heterojunction, and further designing a method for preparing the heterojunction; preparing transition metal disulfide by adopting a chemical vapor deposition method; and uniformly stirring and mixing the transition metal disulfide, white phosphorus powder and an organic solvent, performing centrifugal treatment, and performing annealing treatment in vacuum or argon atmosphere, thereby obtaining the blue phosphorus/transition metal disulfide heterojunction anode material. The anode material prepared by the invention has high structure stability, conductivity, flexibility, high lithium adsorption capacity and good electrical properties, and the preparation process is simple, high in repeatability, high in yield, low in cost and suitable for large-scale industrial production.

Description

technical field [0001] The invention relates to the technical field of nanometer materials, and proposes a blue phosphorus / transition metal disulfide heterojunction anode material. Background technique [0002] Two-dimensional transition metal dichalcogenides (transition metal dichalcogenides, TMDs), the general chemical formula is MX 2 , where M can be the main group transition metals of IV, V, and VI, and X is the chalcogen elements S, Se, Te, such as MoS 2 and NbS 2 , has attracted extensive attention not only for its unique electronic and catalytic properties but also for its band engineering tunability via strain or vertical electric field over a wide range. [0003] Elemental phosphorus has four allotropes, namely: white phosphorus, red phosphorus, purple phosphorus and black phosphorus (BP). Since the experimental discovery of the two-dimensional material black phosphorus, Zhu et al. have further proposed another form of phosphorus that is only two atomic layers th...

Claims

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Application Information

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IPC IPC(8): H01M4/36H01M4/38H01M4/58H01M10/0525
CPCH01M4/364H01M4/38H01M4/5815H01M10/0525Y02E60/10
Inventor 吴波彭琼萨百晟杨洪雷胡康明
Owner FUZHOU UNIV
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