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A kind of preparation method of phosphorus-containing porous nano-carbon spheres

A technology of nano-carbon spheres and nano-microspheres, which is applied in the field of preparation of porous nano-carbon spheres, can solve the problems of few types of phosphorus-containing polymer precursors, undiscussed and rare energy materials, and achieve low density, clean surface, and large pore size. uniform effect

Active Publication Date: 2019-07-23
XIAMEN UNIV
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

In 2003, Lee ] et al. used phosphorus oxychloride and methylphosphonic acid as the phosphorus source and crude oil as the carbon source to synthesize a phosphorus-containing carbon material for the first time. The phosphorus content of the carbon material reached 6.7%. Due to the introduction of phosphorus content, its oxidation resistance was greatly improved. performance, but no discussion on the relevant properties of energy materials
Among them, there are fewer types of phosphorus-containing polymer precursors, so the research on doping in this way is even rarer.

Method used

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  • A kind of preparation method of phosphorus-containing porous nano-carbon spheres
  • A kind of preparation method of phosphorus-containing porous nano-carbon spheres
  • A kind of preparation method of phosphorus-containing porous nano-carbon spheres

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0028] 1. Preparation of phosphorus-containing polymer nanospheres:

[0029] Take 0.8g polystyrene (St), 0.8g divinylbenzene (DVB) and 0.4g methacrylic acid-2-hydroxyethyl diphenylphosphinate and add to 150mL containing 38mL distilled water and 20mL ethanol mixed solution In the three-necked flask, pass N 2 Protected, heated and stirred to 75°C. After the temperature is stabilized, add 2 mL of aqueous initiator solution dissolved with 0.04 g of azobisisobutylamidine hydrochloride (V-50), react for 10 hours, wash repeatedly with ethanol-water solution, and dry in a vacuum oven at 50°C overnight, get as Figures 1 to 3 Phosphorus-containing polymer nanospheres of uniform particle size are shown.

[0030] 2. Preparation of hypercrosslinked phosphorus-containing polymer nanospheres:

[0031] Take 0.5g of the above-mentioned phosphorus-containing polymer nanospheres and add them to a 100mL single-necked flask filled with 20mL of 1,2-dichloroethane, ultrasonically disperse them ...

Embodiment 2-5

[0035] 1. Preparation of phosphorus-containing polymer nanospheres:

[0036]

[0037] As shown in the table, polystyrene (St), divinylbenzene (DVB) and methacrylate-2-hydroxyethyl diphenylphosphinate in different mass ratios were added to 150 mL of 38 mL of distilled water and 20 mL of ethanol In the three-necked flask of the mixed solution, pass through N2 protection, heat and stir to 75°C. After the temperature is stabilized, add 2 mL of aqueous initiator solution dissolved with 0.04 g of azobisisobutylamidine hydrochloride (V-50), react for 10 hours, wash repeatedly with ethanol-water solution, and dry in a vacuum oven at 50°C overnight, get as figure 1 Phosphorus-containing polymer nanospheres of uniform particle size are shown.

[0038] 2. Preparation of super-crosslinked phosphorus-containing polymer nanospheres: same as in Example 1.

[0039] 3. Preparation of phosphorus-containing porous nano-carbon spheres: same as in Example 1.

Embodiment 6-8

[0041] 1. Preparation of phosphorus-containing polymer nanospheres

[0042]

[0043] Take 0.4g of polystyrene (St), 0.8g of divinylbenzene (DVB) and 0.8g of different types of phosphorus-containing polymer monomers as shown in the table and add them to 150mL three In a flask with N2 protection, heat and stir to 75°C. After the temperature is stabilized, add 2 mL of aqueous initiator solution dissolved with 0.04 g of azobisisobutylamidine hydrochloride (V-50), react for 10 hours, wash repeatedly with ethanol-water solution, and dry in a vacuum oven at 50°C Overnight, phosphorus-containing polymer nanospheres with uniform particle size are obtained.

[0044] 2. Preparation of super-crosslinked phosphorus-containing polymer nanospheres: same as in Example 1.

[0045] 3. Preparation of phosphorus-containing porous nano-carbon spheres: same as in Example 1.

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Abstract

The invention discloses a preparation method of phosphorus-containing porous carbon nanospheres. The method comprises the following steps: (1) preparing phosphorus-containing polymer nanospheres; (2)preparing phosphorus-containing porous polymer nanospheres; (3) carrying out high temperature carbonization. The phosphorus-containing porous carbon nanospheres prepared by the method has the characteristics of being low in density, large in specific surface area, high in phosphorus content, and the like, thus having potential application prospect in the fields such as electrochemical catalysis, adsorption and energy storage.

Description

technical field [0001] The invention belongs to the technical field of preparation of heteroatom-doped carbon materials, and in particular relates to a preparation method of phosphorus-containing porous nano-carbon spheres. Background technique [0002] With the continuous development of society, people pay more and more attention to environmental and energy issues. Researching and designing advanced new materials and applying them to different energy devices has always been an important hot issue in scientific and engineering research. Due to the characteristics of wide abundance, high strength, low density, large specific surface area, good corrosion resistance, and excellent electrical conductivity, carbon-based materials have attracted much attention in the design and development of materials in the field of new energy. [0003] Heteroatom-doped carbon materials are based on carbon materials, and other different atoms are introduced into its surface or lattice, so that t...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): C01B32/05
Inventor 戴李宗李忠裕刘惠祥李奕奕陈国荣袁丛辉许一婷曾碧榕罗伟昂
Owner XIAMEN UNIV