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Production and application method of porous carbon material with high specific surface area

A porous carbon material and high specific surface area technology, applied in the preparation/purification of carbon, electrical components, battery electrodes, etc., can solve the problems that are not suitable for large-scale production, the process of porous materials is complicated, and the yield is low, and achieve high resistance efficiency, high pore volume, and high yield

Inactive Publication Date: 2019-01-29
INST OF NEW MATERIALS & IND TECH WENZHOU UNIV
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

The porous material obtained by this method is complicated and the yield is low, so it is not suitable for large-scale production

Method used

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  • Production and application method of porous carbon material with high specific surface area
  • Production and application method of porous carbon material with high specific surface area
  • Production and application method of porous carbon material with high specific surface area

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0037] S1: the simple substance Co of hexachlorobutadiene and transition metal is added in the autoclave with polytetrafluoroethylene liner, reacted 40 hours at 220 ℃, wherein the mol ratio of metal simple substance and hexachlorobutadiene is 1:30;

[0038] S2: After the reaction is finished, cool to room temperature naturally, and dry the obtained solid at 220° C. for 6 hours to obtain a dry sample;

[0039] S3: The dry sample was heated to 1000° C. at a heating rate of 10° C. / min under nitrogen protection, and calcined for 2 hours to obtain porous carbon materials, which were respectively named M-1000.

Embodiment 2-6

[0040] Embodiment 2-6, the investigation of metal simple substance in the step S1

[0041] Except that the simple metal substance in step S1 is replaced by Fe, Zn, Ca, Sn and Mn, etc., other operations are all the same, so that the operation of Example 1 is repeated, so that the examples 2-6 are carried out in sequence, and the resulting composite materials are named sequentially. For Fe-1000, Zn-1000, Ca-1000, Sn-1000 and Mn-1000 etc.

Embodiment 7-9

[0042] Embodiment 7-9, the investigation of roasting temperature in the step S3

[0043] Except that the high-temperature calcination temperature in step S3 was replaced from 1000°C to 800°C, 900°C and 1100°C respectively, other operations remained unchanged, so that Example 1 was repeated, and the materials of Examples 7-9 were obtained in sequence. The resulting composites were therefore named M-800, M-900 and M-1100.

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Abstract

The invention discloses a production and application method of a porous carbon material with a high specific surface area. The method comprises two specific steps. The step one comprises the followingsteps: S1, adding 0.05-0.4 g of metal and 10-80 ml of hexachlorobutadiene into a stainless steel reaction kettle with a polytetrafluoroethylene liner, covering the reaction kettle with a reaction kettle cover, and placing the reaction kettle in a drying oven for carrying out a reaction at a temperature of 210-230 DEG C for 8-50 hours; S2, centrifuging and washing the product obtained after the reaction of the step S1 is completed, carrying out vacuum drying, carrying out heating for 0.5-4 hours under the protection of inert gas, carrying out cooling to room temperature, and collecting and storing the product in a drying utensil for later use; and S3, carrying out heat treatment on the product obtained in the step S2 under the protection of inert gas. The step two comprises applying the porous carbon material with a high specific surface area prepared in the step one to an oxygen reduction process. An oxygen reduction electrode prepared from the porous carbon material with a high specific surface area can also be applied to fuel cells.

Description

technical field [0001] The invention relates to the technical field of application of nano carbon materials, in particular to the application of a porous carbon material with high specific surface area in oxygen reduction. Background technique [0002] A fuel cell (Fuel Cell, FC) is an energy conversion device that converts the chemical energy of fuel (hydrogen) and oxidant (air) into electrical energy by electrochemical reaction. It has excellent characteristics such as long life, high energy, fast start-up, and no pollution, so it has a good application prospect in many fields such as automobile power devices, mobile power supplies, and power plants. Since the 1930s, people have put forward the initial idea of ​​fuel cells, but because there are still many technical bottlenecks that cannot be solved, the fuel cells are still far away from the real commercial application. [0003] Porous carbon materials have been widely used because of their high specific surface area, ri...

Claims

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Application Information

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IPC IPC(8): C01B32/05H01M4/96
CPCC01B32/05H01M4/96Y02E60/50
Inventor 王舜金辉乐冯鑫王继昌余小春林志群吴昌迷
Owner INST OF NEW MATERIALS & IND TECH WENZHOU UNIV
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