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Preparation method of black phosphorus nanosheet and half-opened carbon nanofiber composite material

A carbon nanofiber, composite material technology, applied in nanocarbon, nanotechnology, nanotechnology and other directions, to achieve the effect of simple operation, thin thickness and high sensitivity

Inactive Publication Date: 2017-07-28
FUZHOU UNIV
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

[0003] At present, there is no literature or patent report on this method

Method used

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  • Preparation method of black phosphorus nanosheet and half-opened carbon nanofiber composite material
  • Preparation method of black phosphorus nanosheet and half-opened carbon nanofiber composite material
  • Preparation method of black phosphorus nanosheet and half-opened carbon nanofiber composite material

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0022] (1) In a glove box filled with argon, the block black phosphorus crystals were ground into powder, and dispersed in N-methylpyrrolidone to prepare a 1 mg / mL black phosphorus powder suspension;

[0023] (2) React the black phosphorus powder suspension in an ultrasonic cell pulverizer with a power of 300 W for 10 hours to obtain a mixture of dispersed and exfoliated black phosphorus nanosheets;

[0024] (3) After the black phosphorus nanosheet mixture was left to stand for 24 h, the upper layer suspension was taken, filtered and washed until neutral, and black phosphorus nanosheets were obtained;

[0025] (4) Weigh 5 mg of black phosphorus nanosheets and 100 mg of semi-disentangled carbon nanofibers, respectively, and disperse them in ultrapure water, and then sonicate for 2 h to prepare 1 mg / mL black phosphorus nanosheets suspension solution and 1 mg / mL of semi-disentangled carbon nanofiber suspension;

[0026] (5) Using the hydrothermal method, add 3 ml black phosphoru...

Embodiment 2

[0030] (1) In a glove box filled with argon, the block black phosphorus crystals were ground into powder, and dispersed in N-methylpyrrolidone to prepare a 1 mg / mL black phosphorus powder suspension;

[0031] (2) The black phosphorus powder suspension was reacted in an ultrasonic cell pulverizer with a power of 300 W for 8 hours to obtain a mixture of dispersed and exfoliated black phosphorus nanosheets;

[0032] (3) After the black phosphorus nanosheet mixture was left to stand for 22 hours, the upper layer suspension was taken and filtered and washed until neutral to obtain black phosphorus nanosheets;

[0033] (4) Weigh 5 mg of black phosphorus nanosheets and 100 mg of semi-disentangled carbon nanofibers, respectively, and disperse them in ultrapure water, and then sonicate for 2 h to prepare 1 mg / mL black phosphorus nanosheets suspension solution and 1 mg / mL of semi-disentangled carbon nanofiber suspension;

[0034] (5) Using the hydrothermal method, add 3 ml black phosph...

Embodiment 3

[0037] (1) In a glove box filled with argon, the block black phosphorus crystals were ground into powder, and dispersed in N-methylpyrrolidone to prepare a 1 mg / mL black phosphorus powder suspension;

[0038] (2) The black phosphorus powder suspension was reacted for 12 h in an ultrasonic cell pulverizer with a power of 300 W to obtain a mixture of dispersed and exfoliated black phosphorus nanosheets;

[0039](3) After the mixture of black phosphorus nanosheets was left to stand for 26 h, the upper layer suspension was taken and filtered and washed until neutral to obtain black phosphorus nanosheets;

[0040] (4) Weigh 5 mg of black phosphorus nanosheets and 100 mg of semi-disentangled carbon nanofibers, respectively, and disperse them in ultrapure water, and then sonicate for 2 h to prepare 1 mg / mL black phosphorus nanosheets suspension solution and 1 mg / mL of semi-disentangled carbon nanofiber suspension;

[0041] (5) Using the hydrothermal method, add 3 ml black phosphorus...

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Abstract

The invention discloses a preparation method of a black phosphorus nanosheet and half-opened carbon nanofiber composite material, wherein the method includes steps of firstly, grinding a black phosphorus crystal to be powder in a glove box filled with argon fully, and dispersing to N-methyl pyrrolidone, and preparing to be 1mg / mL black phosphorus powder suspension liquid; reacting the prepared black phosphorus powder suspension liquid in a 300W ultrasound cell smashing device for 8-12 h, and acquiring the dispersed and peeled black phosphorus nanosheet mixture. After placing for 22-26 hours, taking an upper suspension liquid, performing suction filtration and washing to neutral; acquiring the black phosphorus powder suspension liquid; performing ultrasound treatment for 0.5 h after mixing the black phosphorus nanosheet with half-opened carbon nanofiber; then pouring to a hydrothermal kettle; reacting for 1-3 h at 90-100 DEG C, and performing sample centrifugation and washing, and preparing the black phosphorus nanosheet and half-opened carbon nanofiber composite material. The material prepared by the method has potential application in electrochemistry domain.

Description

technical field [0001] The invention relates to a method for preparing a composite material of black phosphorus nanosheets and half-unwound carbon nanofibers. The method utilizes a hydrothermal method to adsorb black phosphorus nanosheets on the surface of half-unwound carbon nanofibers, which belongs to nanomaterial preparation technology field. Background technique [0002] Phosphorus is located in the fifth main group of the periodic table of elements, and solid phosphorus has three main allotropes: white phosphorus, red phosphorus and black phosphorus. White phosphorus is unstable and will spontaneously ignite at 30 °C; red phosphorus is relatively stable at room temperature, but red phosphorus has low conductivity. Of the three allotropes, black phosphorus is the most stable, insoluble in most solvents, nonflammable, amorphous solid. Black phosphorus has three common crystal forms: orthorhombic, rhombohedral, and simple cubic. Black phosphorus is multi-layered and wr...

Claims

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Application Information

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IPC IPC(8): G01N27/26C01B32/15C01B32/156B82Y30/00B82Y40/00
CPCB82Y30/00B82Y40/00G01N27/26
Inventor 詹红兵蓝淑敏
Owner FUZHOU UNIV
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