Coal-based nano-porous carbon material prepared by adopting template method and preparation method thereof

A nano-porous and template-based technology, applied in the preparation/purification of carbon, can solve the problems of difficult pore structure regulation, undesignable micro-nano morphology, pollution, etc., and achieve strong designability, effective control of pore structure, The effect of simple preparation method

CN108516531APending Publication Date: 2018-09-11THE CENT FOR DISEASE CONTROL & PREVENTION OF XINJIANG UYGUR AUTONOMOUS REGION +1
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Patent Information

Authority / Receiving Office
CN · China
Patent Type
Applications(China)
Current Assignee / Owner
Publication Date
2018-09-11

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Abstract

The invention relates to the technical field of coal-based porous carbon materials, and discloses a coal-based nano-porous carbon material prepared by adopting a template method and a preparation method thereof. The coal-based nano-porous carbon material prepared by adopting the template method is obtained according to the following steps: pulverizing and processing a required amount of coal carbon to obtain required coal powder; uniformly mixing the coal powder with a strong oxidizing agent solution and carrying out liquid phase oxidation reaction to obtain a coal oxide solution; washing thecoal oxide solution to be neutral and then drying the solution to obtain the coal oxide; uniformly mixing the coal oxide with a template agent in a proportion to obtain a mixture; carrying out carbonization processing on the obtained mixture according to a heating program so as to obtain a carbonized sample; removing the template agent in the carbonized sample through a washing method so as to obtain the coal-based nano-porous carbon material prepared by adopting the template method. According to the coal-based nano-porous carbon material disclosed by the invention, the material is prepared byusing coal with wide source as a carbon precursor; the preparation method is simple and is low in cost; the obtained nano material has the advantages of strong designability of Wiener morphology andeffective modulation of a hole structure, and is suitable for being massively prepared.
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Description

technical field

[0001] The invention relates to the technical field of coal-based porous carbon materials, and relates to a coal-based nano-porous carbon material prepared by a template method and a preparation method thereof. Background technique

[0002] my country is rich in coal resources, but relatively short of oil and natural gas. Among the proven primary fossil energy reserves, coal accounts for 94%, while oil and natural gas only account for 4% and 2% respectively. At the same time, coal has always been dominant in my country's energy consumption structure. Although with the adjustment of my country's energy consumption structure, new energy and renewable energy continue to grow, and coal's total energy consumption in my country is on a downward trend, its dominant position is still unshakable. Coal chemical industry is a typical high-pollution, high-energy-consumption, low-value-added industry, which causes resource waste and environmental problems are particularl...

Examples

Embodiment 1

[0022] Embodiment 1: The coal-based nanoporous carbon material prepared by the template method is obtained according to the following method: in the first step, the coal is pulverized, and after sieving treatment, coal powder is obtained, and the coal powder and the strong oxidant solution are mixed and stirred evenly, Carry out liquid-phase oxidation reaction to obtain oxidized coal solution, wash the oxidized coal solution to neutrality and then dry to obtain oxidized coal; in the second step, mix the required amount of oxidized coal with ethanol solution to obtain the first mixed solution, and prepare the The required amount of template agent is mixed with ethanol solution to obtain the second mixed solution, and then the first mixed solution and the second mixed solution are uniformly mixed to obtain a sample mixed solution, wherein the amount of ethanol solution is dissolved with oxidized coal and template agent respectively As a benchmark, in the sample mixed solution, th...

Embodiment 2

[0026] Embodiment 2: The coal-based nanoporous carbon material prepared by the template method is obtained according to the following method: in the first step, the coal is pulverized, and after sieving treatment, coal powder is obtained, and the coal powder and the strong oxidant solution are mixed and stirred evenly, Carry out liquid-phase oxidation reaction to obtain oxidized coal solution, wash the oxidized coal solution to neutrality and then dry to obtain oxidized coal; in the second step, mix the required amount of oxidized coal with ethanol solution to obtain the first mixed solution, and prepare the The required amount of template agent is mixed with ethanol solution to obtain the second mixed solution, and then the first mixed solution and the second mixed solution are uniformly mixed to obtain a sample mixed solution, wherein the amount of ethanol solution is dissolved with oxidized coal and template agent respectively As a benchmark, in the sample mixed solution, th...

Embodiment 3

[0027] Embodiment 3: As an optimization of the above embodiment, the strong oxidizing agent solution is a mixed solution of concentrated sulfuric acid and concentrated nitric acid, wherein, in the mixed solution, the volume ratio of concentrated sulfuric acid to concentrated nitric acid is 3:1.