Method for preparing porous carbon through zeolite ore template

A technology of zeolite ore and porous carbon, which is applied in the field of application and preparation of functional materials, can solve the problems of complex process, high cost of porous carbon and high cost, and achieves the effects of good scanning curve and excellent high-rate performance.

Inactive Publication Date: 2015-05-27
徐玉磊
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

However, traditional template carbons generally use porous silicon materials with regular pore sizes. Most of these templates are artificially synthesized, and some template synthesis itself is the research achievement in the field of molecular sieve research. Porous carbon costs more

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment Construction

[0017] A kind of zeolite ore template prepares the method for porous carbon, adopts following steps:

[0018] Step 1: Preparation of charcoal / template complex:

[0019] Use zeolite ore as a template and sucrose as a carbon source; put 5g of zeolite ore powder in a beaker, add 20mL of sucrose, deionized water, and sulfuric acid solution in total, shake on a shaker for 2 hours, and filter; put the solid part in air at 100°C Heating under low temperature for 4 hours, then raising the temperature to 150°C and keeping it for 2 hours to polymerize and solidify the sucrose; put the cured product into a tubular atmosphere furnace, and under the protection of nitrogen, raise the temperature to 850°C at a rate of 5°C / min, carbonize for 5 hours, to obtain a carbon / template complex;

[0020] Step 2: Preparation of porous carbon from the carbon / template composite:

[0021] Treat the complex in concentrated hydrofluoric acid for 3 hours, wash it and then treat it with hydrochloric aci...

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PUM

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Abstract

The invention relates to the technical field of functional material application and preparation and particularly relates to a method for preparing a porous carbon through a zeolite template. The method for preparing the porous carbon through the zeolite template comprises the following steps: preparing a carbon/template compound from the zeolite; and preparing the porous carbon from the carbon/template compound. A mesopore and macropore template carbon with wide pore size distribution can be prepared by taking a natural zeolite as the template. The specific surface area of the template carbon is 411m<2>/g, and the mesopore rate is 66%. In the H2SO4 medium, the template carbon has excellent high-rate capability. When the scanning speed is 1mV/s, the specific capacity is 185F/g; when the scanning speed is increased to 500mV/s, the specific capacity is 133F/g, and the capacity retention ratio is 72%, and a good scanning curve can be kept.

Description

technical field [0001] The invention relates to the technical field of application and preparation of functional materials, in particular to a method for preparing porous carbon with a zeolite ore template. Background technique [0002] Supercapacitors with porous carbon electrodes are expected to become new energy sources for applications such as power vehicles and power storage due to their high energy and power densities. In order to obtain high energy and power density, porous carbons are required to have high specific surface area, large pore size and suitable surface functional groups. Under these conditions, carbon aerogels and template carbons with medium and macroporous structures are widely used in the research of supercapacitors. Among them, template carbon has received more attention due to its tunable pore size. However, traditional template carbons generally use porous silicon materials with regular pore diameters. Most of these templates are artifici...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C01B31/02
Inventor 徐玉磊
Owner 徐玉磊
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