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Porous carbon materials and manufacturing method thereof

A production method and porous carbon technology, applied in the field of porous materials, can solve the problems of high energy and long manufacturing time, and achieve the effects of low energy, increased surface area, and increased charge storage capacity

Inactive Publication Date: 2012-09-19
IND TECH RES INST
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Carbon electrode materials with large surface area and good pore properties will effectively improve the overall performance of supercapacitors, but the current manufacturing technology of such carbon electrode materials (refer to U.S. Patent No. I274453) requires relatively long manufacturing time (about 3-7 days) and higher energy (2000°C processing temperature)

Method used

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  • Porous carbon materials and manufacturing method thereof
  • Porous carbon materials and manufacturing method thereof
  • Porous carbon materials and manufacturing method thereof

Examples

Experimental program
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Effect test

no. 1 example

[0041] First, 2 g of surfactant-ethylene oxide propylene oxide triblock copolymer (Pluronic F127) is dissolved in a solvent composed of water and ethanol (the volume ratio of water and ethanol is 0.5, and the total weight is 50 g) , and stirred for several minutes, at this time, the solvent containing the surfactant was in the state of a clear liquid.

[0042] Next, the carbon source material-phenolic resin (0.5-4g) is dissolved in a solvent to form an organic template precursor solution. At this point, the solvent can be placed in a constant temperature bath to balance the carbon source material and the solvent to a set temperature (30° C.), and stirred at the set temperature for 4 hours to form an organic template precursor solution.

[0043] In addition, silicate-sodium silicate (8 g) was placed in water (150 g) and stirred to dissolve in water to form an aqueous silicate solution, after which the aqueous silicate solution was adjusted to a pre-reaction pH value (pH=4), an...

no. 2 example

[0049] The operating steps of the second embodiment are the same as the first embodiment, but wherein the reaction control conditions are adjusted as follows:

[0050] 1. The pH value of the pre-reaction of the silicate aqueous solution is about 4;

[0051] 2. The set temperature (of carbon source material, solvent and silicate aqueous solution) is 40°C;

[0052] 3. The solvent includes water and ethanol, and the volume ratio of water and ethanol is 1.

[0053] image 3 It is a transmission electron microscope image of the porous carbon material prepared in the second embodiment.

no. 3 example

[0055] The operating steps of the third embodiment are the same as those of the first embodiment, but wherein the reaction control conditions are adjusted as follows:

[0056] 1. The pH value of the pre-reaction of the silicate aqueous solution is about 4;

[0057] 2. The set temperature (of carbon source material, solvent and silicate aqueous solution) is 40°C;

[0058] 3. The solvent includes water and ethanol, and the volume ratio of water and ethanol is 5.

[0059] Figure 4 It is a transmission electron microscope image of the porous carbon material prepared in the third embodiment.

[0060] Please refer to Figure 2 to Figure 4 ,Depend on Figure 2 to Figure 4 It can be seen that as the ratio of ethanol in the solvent increases, the generated porous carbon material has more regular arrangement (well-order) spherical structures ( figure 2 , image 3 ). When the proportion of water is too high (the third embodiment), there will be a change in form, and the reductio...

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Abstract

The invention refers to a manufacturing method of a porous carbon material, comprising the steps of: dissolving a surface active agent and a carbon source material in a solvent to form an organic template precursor solution; manufacturing a silicate aqueous solution; pouring the organic template precursor solution in the silicate aqueous solution to separate out an intermediate product which includes a surface active agent, a carbon source material and a silicon oxide template; heating the intermediate product to carbonize the intermediate product; and removing the silicon oxide template to form a porous carbon material. The invention also refers to a manufacturing method of the porous carbon material.

Description

technical field [0001] The present invention relates to porous materials, and in particular to porous carbon materials and methods for making them. Background technique [0002] Supercapacitors are a revolutionary development in energy storage and may replace traditional batteries in some areas in the future. A supercapacitor can be said to be a new type of power-type energy storage component that has emerged with the advancement of material science. It is a new type of electrochemical device that stores electrical energy by polarizing the electrolyte. The global demand for supercapacitors has expanded rapidly since its launch, and it has become a new industry super rookie in the field of chemical power sources, and supercapacitors are widely used in electric vehicles, hybrid fuel vehicles, special trucks, electric power, railways, communications, national defense, and consumer electronics. And many other fields have huge application value and market potential. [0003] Du...

Claims

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Application Information

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IPC IPC(8): C01B31/02C01B31/00
CPCY02T10/7022Y02E60/13
Inventor 林弘萍林有铭蔡协和陈立基
Owner IND TECH RES INST
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