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A kind of preparation method and application of defective black phosphorene carbon nanotube composite material

A carbon nanotube and composite material technology, applied in electrolytic coatings, structural parts, coatings, etc., can solve the problems of many steps and time-consuming, and achieve the effect of good effect, improved performance and great application prospects.

Active Publication Date: 2021-12-21
INT ACAD OF OPTOELECTRONICS AT ZHAOQING SOUTH CHINA NORMAL UNIV
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

However, at present, the preparation method of the thin-layer black phosphorene / carbon nanotube composite structure mainly adopts a two-step method. Firstly, the black phosphorus is peeled off by physical high-intensity ultrasonic method, and then other functional materials are combined by hydrothermal methods. Therefore, it is still a great challenge to find a simple and fast preparation method of black phosphorene / carbon nanotube composite structure

Method used

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  • A kind of preparation method and application of defective black phosphorene carbon nanotube composite material
  • A kind of preparation method and application of defective black phosphorene carbon nanotube composite material
  • A kind of preparation method and application of defective black phosphorene carbon nanotube composite material

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Effect test

Embodiment 1

[0038] This embodiment provides a method for preparing a defective black phosphorene / carbon nanotube composite structure, the process of which is as follows:

[0039] (1) Prepare the electrolyte: stir and disperse carbon nanotubes (needed only when configuring the cathode chamber electrolyte), 5 mg urea and 15 mg of adsorption aid tetramethylphosphorus chloride in the dispersant N, N-dimethylformamide , the dosage ratio of carbon nanotubes and dispersant is 1mg / ml;

[0040] (2) H-type double electrochemical cell reactor is adopted, and the proton exchange membrane is used to separate the cathode chamber and the anode chamber; the electrolyte is respectively added to the cathode chamber and the anode chamber; the black phosphorus crystal is fixed on the electrode as the cathode and placed in the cathode chamber , the platinum sheet electrode is used as the anode and assembled into an electrolytic cell;

[0041] (3) Conduct electrolysis at 10V for 15 minutes, take out the ultra...

Embodiment 2

[0043] This embodiment provides a method for preparing a black phosphorene / carbon nanotube composite structure, the process of which is as follows:

[0044] (1) Prepare the electrolyte: stir and disperse carbon nanotubes (needed only when configuring the cathodic chamber electrolyte), 1 mg urea and 15 mg of adsorption aid tetramethylphosphorus chloride in the dispersant N, N-dimethylformamide ; The consumption ratio of carbon nanotube and dispersant is 5mg / ml;

[0045] (2) H-type double electrochemical cell reactor is adopted, and the proton exchange membrane is used to separate the cathode chamber and the anode chamber; the electrolyte is respectively added to the cathode chamber and the anode chamber; the black phosphorus crystal is fixed on the electrode as the cathode and placed in the cathode chamber , the platinum sheet electrode is used as the anode and assembled into an electrolytic cell;

[0046] (3) Conduct electrolysis at 10V for 15 minutes, take out the ultrasonic...

Embodiment 3

[0048]This embodiment provides a method for preparing a black phosphorene / carbon nanotube composite structure, the process of which is as follows:

[0049] (1) Prepare the electrolyte: stir and disperse carbon nanotubes (needed only when configuring the cathode chamber electrolyte), 5 mg urea and 15 mg of adsorption aid tetramethylphosphorus chloride in the dispersant N, N-dimethylformamide ; The consumption ratio of carbon nanotube and dispersant is 10mg / ml;

[0050] (2) H-type double electrochemical cell reactor is adopted, and the proton exchange membrane is used to separate the cathode chamber and the anode chamber; the electrolyte is respectively added to the cathode chamber and the anode chamber; the black phosphorus crystal is fixed on the electrode as the cathode and placed in the cathode chamber , the platinum sheet electrode is used as the anode and assembled into an electrolytic cell;

[0051] (3) Conduct electrolysis at 10V for 15 minutes, take out the ultrasonic ...

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Abstract

The invention belongs to the technical field of nanomaterial preparation, and discloses a preparation method and application of a defective black phosphorene carbon nanotube composite material. The invention adopts an electrochemical method to prepare the carbon nanotube-loaded black phosphorene composite material. The constructed defective black phosphorene is embedded in carbon nanotubes to form a three-dimensional conductive network, which can be used as a high-performance sulfur fixer for lithium-sulfur batteries and a catalytic accelerator for polysulfide conversion, making the battery electrodes better in conductivity and shuttling effect. Low, it has a more prominent effect on improving the performance of lithium-sulfur batteries; the preparation method provided by the invention is low in cost, easy to operate, and has a good efficiency improvement effect, and has great application prospects.

Description

technical field [0001] The invention belongs to the technical field of nanomaterial preparation, and more specifically relates to a preparation method and application of a defective black phosphorene carbon nanotube composite material. Background technique [0002] In the past few decades, the development of traditional fossil energy has greatly promoted the development of human society and economy, but at the same time, with the continuous consumption of non-renewable petroleum energy and the strong demand of advanced energy for human beings in the new era, Prompt people to constantly explore new rechargeable energy storage devices. Lithium-sulfur batteries are considered to be excellent next-generation energy options due to their abundant reserves, low cost, environmental friendliness, and their high theoretical capacity. However, its performance is affected by the low conductivity of sulfur and the shuttle effect of polysulfides, which makes it difficult to meet the prac...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): C25D15/00C25D5/54H01M4/62H01M10/052
CPCC25D15/00C25D5/54H01M4/625H01M4/628H01M10/052Y02E60/10
Inventor 王新许元妹张永光水玲玲张文娜马恒
Owner INT ACAD OF OPTOELECTRONICS AT ZHAOQING SOUTH CHINA NORMAL UNIV