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A three-dimensional graphitized carbon material rich in continuous mesoporous structure and its preparation method

A mesoporous structure, graphitized carbon technology, applied in chemical instruments and methods, inorganic chemistry, carbon compounds, etc., can solve the problems of difficult to remove templates, organic surfactants increase environmental pollution hazards, increase costs, etc., and achieve a preparation method. mature effect

Inactive Publication Date: 2018-05-18
SUN YAT SEN UNIV +1
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, the preparation of mesoporous carbon by the template method is complex and requires the removal of templates, while common templates such as silica are difficult to remove, which greatly increases the cost and restricts large-scale production
Although soft templates can greatly reduce the difficulty of template removal, the use of organic surfactants increases the potential for environmental pollution

Method used

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  • A three-dimensional graphitized carbon material rich in continuous mesoporous structure and its preparation method
  • A three-dimensional graphitized carbon material rich in continuous mesoporous structure and its preparation method
  • A three-dimensional graphitized carbon material rich in continuous mesoporous structure and its preparation method

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0039] Take 10 g of pretreated macroporous weakly acidic acrylic cation exchange resin and add it to 100 mL of 0.05 molL -1 Nickel acetate aqueous solution, magnetically stirred for 6 h, and then the exchanged ion exchange resin was washed with deionized water, filtered, and dried. Take 10 g of the dried exchange resin, add to 100 mL dissolved in 5 g Ca(OH) 2 Ca(OH) 2 / ethanol mixed solution at 80 o C, stir and dry until paste, then turn to 70 o C in an oven dried and crushed. The pulverized product was placed in a tube furnace, under nitrogen atmosphere, with 2 o Cmin -1 The heating rate rises from room temperature to 950 o C, and kept at this temperature for 2h. The resulting product was treated with 2 mol L -1 Hydrochloric acid treatment, wash and filter with deionized water until the pH of the filtrate is neutral, then at 80 o Place it under C for 12 h and dry it to obtain the sample of Example 1. BET test result shows, the specific surface area of ​​embodiment ...

Embodiment 2

[0041] Take 10 g of pretreated macroporous weakly acidic acrylic cation exchange resin and add it to 100 mL of 0.05 molL -1 Nickel acetate aqueous solution, magnetically stirred for 6 h, and then the exchanged ion exchange resin was washed with deionized water, filtered, and dried. Take 10 g of the dried exchange resin, add to 100 mL dissolved in 10 g Ca(OH) 2 Ca(OH) 2 / ethanol mixed solution at 80 o C, stir and dry until paste, then turn to 70 o C in an oven dried and crushed. The pulverized product was placed in a tube furnace, under nitrogen atmosphere, with 2 o Cmin -1 The heating rate rises from room temperature to 950 o C, and kept at this temperature for 2 h. The resulting product was treated with 2 mol L -1 Hydrochloric acid treatment, wash and filter with deionized water until the pH of the filtrate is neutral, then at 80 o Place it under C for 12 h and dry it to obtain the sample of Example 2. BET test result shows, the specific surface area of ​​embodimen...

Embodiment 3

[0043] Take 10 g of pretreated D113 resin intermediate white ball, add to 100 mL 0.05 mol L -1 Cobalt chloride aqueous solution, at 80 o C, stir and dry until paste, then turn to 70 o C in an oven dried and crushed. Take 10 g of the dried resin, add to 100 mL dissolved in 10 g Ca(OH) 2 Ca(OH) 2 / ethanol mixed solution at 80 o C, stir and dry until paste, then turn to 70 o C in an oven dried and crushed. The pulverized product was placed in a tube furnace, under nitrogen atmosphere, with 2 o Cmin -1 The heating rate rises from room temperature to 950 o C, and kept at this temperature for 2 h. The resulting product was treated with 2mol L -1 Hydrochloric acid treatment, wash and filter with deionized water until the pH of the filtrate is neutral, then at 80 o Place it under C for 12 h and dry it to obtain the sample of Example 3. BET test result shows, the specific surface area of ​​embodiment 3 sample is 400 m 2 g -1 , with a total pore volume of 0.62 cm 3 g ...

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Abstract

The invention discloses a three-dimensional graphitized carbon material rich in a continuous mesoporous structure and a preparation method thereof. The preparation method comprises the following preparation steps: adding water to a metal ion salt which can catalyze low temperature graphitization of carbon to dissolve, adding pretreated ion exchange resin, stirring, and exchanging; after the exchange is finished, washing with deionized water and drying; weighing a certain amount of the resin after drying, adding a certain amount of a calcium hydroxide powder, and evenly stirring and mixing; putting the obtained product in a high-temperature furnace in an inert gas atmosphere, and carrying out heat treatment; and pickling the heat-treatment product, filtering, and drying to obtain the carbon material. The preparation method has the advantages of simple process, safety, short production cycle, low cost and easy realization of scale production, has a part of raw materials capable of being recycled, and solves the problems that a traditional carbon material has small mesoporous volume and single pore structure.

Description

technical field [0001] The invention relates to the technical field of carbon materials, in particular to a three-dimensional graphitized carbon material rich in continuous mesopore structure and a preparation method thereof. Background technique [0002] Compared with other materials, carbon materials have excellent and plastic physical and chemical properties, such as hardness, electrical conductivity, light transmittance and other properties can be changed in a large range with the change of carbon structure, so they have a wide range of uses. In particular, porous carbon materials have significant advantages in high specific surface area, high pore volume, high thermal conductivity, and high electrical conductivity, making them promising applications in electrocatalysis, biosensors, solar cells, and chemical energy storage. [0003] Porous carbon can be divided into microporous carbon, mesoporous carbon, macroporous carbon and continuous pore carbon materials according t...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): C01B32/205
CPCC01P2006/12C01P2006/14C01P2006/17
Inventor 沈培康郑书鍫黄向东王清泉梅骜
Owner SUN YAT SEN UNIV