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Synthesis of high mechanical stability non-metal element doped ordered mosopore carbon material

A technology of mechanical stability and non-metallic elements, which is applied in the field of synthesis of ordered mesoporous carbon materials, can solve the problems of difficulty in obtaining, harsh hybridization conditions, and time-consuming synthesis, and achieves good mechanical stability, uniform pore size distribution, The effect of strong mechanical stability

Inactive Publication Date: 2007-07-18
SHANGHAI NORMAL UNIVERSITY
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, this method is time-consuming and complex
Moreover, it is difficult to obtain functionalized mesoporous carbons other than nitrogen-doped
In the method of surface treatment of carbon materials, strong oxidizing agents and reducing agents must be used, and the hybridization conditions are harsh, so it is difficult to popularize

Method used

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  • Synthesis of high mechanical stability non-metal element doped ordered mosopore carbon material
  • Synthesis of high mechanical stability non-metal element doped ordered mosopore carbon material
  • Synthesis of high mechanical stability non-metal element doped ordered mosopore carbon material

Examples

Experimental program
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Embodiment 1

[0027] The preparation of soluble resin precursor solution, 8.00g phenol is put in three-necked flask, 42 ​​℃ of water-bath heatings, make phenol be transparent liquid, prepare 20% sodium hydroxide solution (take by weighing 0.34gNaOH, add 1.36g distilled water), Slowly drop into the phenol liquid. After 10 minutes, 14.16 g of formaldehyde solution with a mass percentage of 37% was added, refluxed at 70° C. for 1 hour, cooled to room temperature, and adjusted to neutral pH with 2 mol / L hydrochloric acid. Distill under reduced pressure at 45°C to 50°C, cool to room temperature, and prepare a 20% ethanol solution.

[0028] Sodium hydroxide in the present embodiment can be replaced with one or more in alkalis such as triethylamine, sodium hydroxide, potassium hydroxide, barium hydroxide, ammoniacal liquor, and wherein sodium hydroxide is the best choice.

[0029] The absolute ethanol, absolute ether, and chloroform in the following examples can be alcohols such as methanol, etha...

Embodiment 2

[0033] Dissolve 3.723g of F127 in 68.13g of absolute ethanol, and stir for 20 minutes to obtain A solution. Add 22 g of the resin ethanol solution in Example 1 above to solution A, stir for 10 min, then spread the mixture evenly in a petri dish, leave it at room temperature for 7 hours, and finally transfer it to a 100°C oven. After 24 hours, put the product in the Calcined at 350°C for 5 hours and at 900°C for 4 hours under a nitrogen atmosphere to obtain a boron-undoped mesoporous carbon material, which is marked as C-1. The XRD spectrum proves that the material has a two-dimensional hexagonal p6mm structure.

Embodiment 3

[0035] Dissolve 2.034g of F127 in 30g of absolute ethanol and stir for 10 minutes to obtain solution A. 0.0017gH 3 BO 3 Stir and react with 24g of the 10% phenolic resin ethanol solution in the above-mentioned Example 1 for 2 hours, then add it to solution A and continue to stir for 10 minutes, then spread the mixture evenly in a petri dish, leave it at room temperature for 7 hours, and finally transfer to 100°C After 24 hours in an oven, the product was calcined at 450° C. for 3 hours and at 900° C. for 3 hours under a nitrogen atmosphere to obtain boron-functionalized mesoporous carbon. The XRD spectrum proves that the material has a three-dimensional body-centered cubic space group structure (see accompanying drawing 1), the pore diameter is 3.9nm, and the pore volume is 0.45cm 3 / g, the specific surface area is 678m 2 / g, its N 2 The adsorption-desorption isotherm belongs to type IV (see accompanying drawing 3).

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Abstract

This invention discloses a preparation method of functional order mesoporous carbon without metal. Make water-soluble phenol formaldehyde and response type of acid for polymerization, utilize predecessor and nonionic wetting agent to carry out organism-organism self assembly, get resin-nonionic wetting agent composite containing boron and phosphonium, remove surface acting agent by calcinating in inert atmosphere, carbonize with high temperature, get non-metal element functional ordered mesoporous polymer, and make order mesoporous carbon with boron or phosphonium. Its ordered meso-scale structure is divided into two kinds. It has characteristics of uniform large specific surface, pore diameter, bore, and path. Because boron oxygen bond of high bond energy is leaded in molecular constitution, it makes order mesoporous carbon with boron have strong mechanical stability. It can be used as wear-resisting stuff. It has lubricating, abrasion improving, service life of friction materials extending effects. It has extensive application prospect in catalytic action, heavy metal ion, and colorant molecular adsorption and electrode materials.

Description

technical field [0001] The invention relates to the synthesis of a functionalized non-metal element-doped ordered mesoporous carbon material, in particular to a synthesis method of a non-metal element-doped ordered mesoporous carbon material with excellent mechanical stability. Background technique [0002] Ordered mesoporous carbon materials are a new type of mesoporous materials in recent years. They have the characteristics of high specific surface area and large pore size. has great application prospects. The doping of non-metal elements endows mesoporous carbon materials with excellent mechanical stability, which is expected to be used as wear-resistant materials. However, the functionalization of carbon surfaces is difficult. This is mainly due to the chemical inertness and lack of active sites on the surface of carbon materials, which restricts the further expansion of hybrid mesoporous carbon materials and their application range. [0003] At present, the methods ...

Claims

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Application Information

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IPC IPC(8): C01B31/02C01B31/08
Inventor 万颖张蝶青冯翠苗钱旭芳李和兴
Owner SHANGHAI NORMAL UNIVERSITY
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