Ultrathin disc-shaped mesoporous carbon material and preparation method and application thereof

A mesoporous carbon, sheet-like technology, applied in the field of fuel cell electrocatalysis, can solve the problem of low economic value, achieve broad application prospects, solve the effects of high cost and good electrocatalytic properties

Active Publication Date: 2021-01-08
CHINA UNIV OF PETROLEUM (BEIJING)
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

At present, waste tire pyrolysis oil is mainly used as boiler fuel, and its economic value is not high. Therefore, using waste tire pyrolysis oil to produce high value-added carbon materials is a new way to efficiently convert waste tire pyrolysis oil and improve its resource utilization

Method used

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  • Ultrathin disc-shaped mesoporous carbon material and preparation method and application thereof
  • Ultrathin disc-shaped mesoporous carbon material and preparation method and application thereof
  • Ultrathin disc-shaped mesoporous carbon material and preparation method and application thereof

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Embodiment 1

[0044] This embodiment provides a method for preparing an ultra-thin disc-shaped mesoporous carbon material, wherein the preparation method includes the following steps:

[0045] (1) Add 60 mL of absolute ethanol, 30 mL of deionized water and 10 mL of ammonia water into a 100 mL beaker, stir for 10 min, add 10 mL of TEOS, keep the temperature at 60 ° C, and continue the reaction for 3 h.

[0046] The product was centrifuged and washed three times with absolute ethanol, and then dried at 100°C to obtain spherical silica.

[0047] Spherical silica and waste tire pyrolysis oil are fully mixed at a mass ratio of 3:1; in the present embodiment, the waste tire pyrolysis oil is a heavy fraction of waste tire pyrolysis oil, and the weight fraction of waste tire pyrolysis oil Quality distillates are distillate oils with a temperature greater than 350°C.

[0048] (2) Put the mixture in a corundum porcelain boat, put it into a horizontal furnace and pass in argon gas, raise the temperatur...

Embodiment 2

[0056] This embodiment provides a method for preparing an ultra-thin disc-shaped mesoporous carbon material, wherein the preparation method includes the following steps:

[0057] (1) Add 60 mL of absolute ethanol, 30 mL of deionized water and 10 mL of ammonia water into a 100 mL beaker, stir for 10 min, add 10 mL of TEOS, keep the temperature at 60 ° C, and continue the reaction for 3 h.

[0058] The product was centrifuged and washed three times with absolute ethanol, and then dried at 100°C to obtain spherical silica.

[0059] Spherical silica and waste tire pyrolysis oil are fully mixed in a mass ratio of 2:1; in the present embodiment, the waste tire pyrolysis oil is a heavy fraction of waste tire pyrolysis oil, and the weight Quality distillates are distillate oils with a temperature greater than 350°C.

[0060] (2) Put the mixture in a corundum porcelain boat, then put it into a horizontal furnace and pass in argon gas, raise the temperature in the horizontal furnace to...

Embodiment 3

[0063] This embodiment provides a method for preparing an ultra-thin disc-shaped mesoporous carbon material, wherein the preparation method includes the following steps:

[0064] (1) Add 60 mL of absolute ethanol, 30 mL of deionized water and 10 mL of ammonia water into a 100 mL beaker, stir for 10 min, add 10 mL of TEOS, keep the temperature at 60 ° C, and continue the reaction for 3 h.

[0065] The product was centrifuged and washed three times with absolute ethanol, and then dried at 100°C to obtain spherical silica.

[0066] Spherical silica and waste tire pyrolysis oil are fully mixed in a mass ratio of 4:1; in the present embodiment, the waste tire pyrolysis oil is a heavy fraction of waste tire pyrolysis oil, and the weight Quality distillates are distillate oils with a temperature greater than 350°C.

[0067] (2) Put the mixture in a corundum porcelain boat, then put it into a horizontal furnace and pass in argon gas, raise the temperature in the horizontal furnace to...

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Abstract

The invention provides an ultrathin disc-shaped mesoporous carbon material and a preparation method and application thereof, and the ultrathin disc-shaped mesoporous carbon material is obtained by firstly calcining a mixture of spherical silicon dioxide and waste tire pyrolysis oil at high temperature in an inert atmosphere, and then washing, filtering and drying a product obtained by calcining athigh temperature at room temperature. According to the invention, waste tire pyrolysis oil is used as a carbon source, spherical silicon dioxide is used as a template agent, and the ultrathin disc-shaped mesoporous carbon material is prepared by directional construction by adopting a template method; and when the carbon material is used as an electrocatalyst of a fuel cell, the carbon material shows good electrocatalytic characteristics, solves the problems of high cost, insufficient durability and the like of an oxygen reduction catalyst of the fuel cell, and has a wide application prospectin the field of electrochemical energy storage. The preparation method of the ultrathin disc-shaped mesoporous carbon material provided by the invention is simple to operate, high in repeatability andcontrollable in synthesis process, the used raw materials are low in cost and easy to obtain, and effective utilization of waste tire pyrolysis oil is also realized.

Description

technical field [0001] The invention relates to an ultra-thin disc-shaped mesoporous carbon material and a preparation method and application thereof, belonging to the technical field of fuel cell electrocatalysis. Background technique [0002] The energy problem is one of the three major problems in the development of today's society, and it has become more and more serious now. The traditional energy utilization method is limited by the Carnot cycle of heat engine efficiency, and the energy utilization efficiency is low. As a clean, efficient, and high energy density new energy source, fuel cells emerged as the times require. After many years of hard work by countless researchers, the research on fuel cells has made a breakthrough. Because the cathode oxygen reduction reaction rate of many fuel cells is slow, the cathode oxygen reduction reaction catalyst has become a key factor affecting the electrocatalytic reaction rate. [0003] At present, fuel cells often use Pt-ba...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): H01M4/96C01B32/15C01B33/18B82Y30/00B82Y40/00
CPCB82Y30/00B82Y40/00C01B33/18C01B32/15H01M4/96Y02E60/50
Inventor 马新龙吴明珍徐成根高金森
Owner CHINA UNIV OF PETROLEUM (BEIJING)
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