Cobweb-based porous activated carbon fiber material and application

An activated carbon fiber and spider web technology, applied in electrical components, battery electrodes, circuits, etc., can solve the problems that spider silk cannot be fully utilized, the structure and performance characteristics of spider silk are not fully grasped, etc., and achieve stability and methanol resistance. The effect of improved performance, improved power density, and simple method

Inactive Publication Date: 2016-06-01
GUANGDONG INST OF ECO ENVIRONMENT & SOIL SCI
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, compared with the large-scale use of silk, spider silk cannot be fully utilized at present.
Spider silk has not made a breakthrough in practical application, the main reason is that people have not fully grasped the characteristics of the structure and performance of spider silk.

Method used

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  • Cobweb-based porous activated carbon fiber material and application
  • Cobweb-based porous activated carbon fiber material and application
  • Cobweb-based porous activated carbon fiber material and application

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0029] A porous active carbon fiber material includes the following steps:

[0030] 1) Collect indoor cleaning cobweb to remove impurities such as large particles solid and dust;

[0031] 2) Use exfoliating water, 1.0mol / L hydrochloric acid, hydrochloric acid, water -free ethanol ultrasound cleaning for 25min, and then wash it with ultra -pure water three times. Dry it at 60 ° C to less than 5%;

[0032] 3) Drying the dry cobweb under 250 ° C is 1H at low temperature pre -carbonization treatment, and then the high temperature carbonization treatment of 900 ° C is 1H, the porous active carbon fiber.

[0033] The porous active carbon fiber scanning electron microscope (SEM) prepared by this embodiment is figure 1 Show.The electron microscope shows that after the high temperature carbonization, the complete spider fiber structure is retained, and the diameter of the carbon fiber is about 100 to 200nm.

Embodiment 2

[0035] A porous active carbon fiber material includes the following steps:

[0036] 1) Collect indoor cleaning cobweb to remove impurities such as large particles solid and dust;

[0037] 2) Use exfoliating water, 2.0mol / L hydrochloric acid, hydrochloric acid, water -free ethanol ultrasound cleaning for 30 minutes, and then clean it with ultra -pure water three times. Dry it at 60 ° C to less than 5%;

[0038] 3) Treating the low -temperature pre -carbonization treatment of the dry cobweb at 250 ° C. After it naturally cools it to room temperature, it will be with a 3x quality FeCl 3 Or zncl 2 Mix, grind and mix well, and then use 900 ° C high -temperature carbonization to treat 2h porous active carbon fibers.

[0039] The porous active carbon fiber scan electron microscope prepared by this embodiment is figure 2 Show.The electron microscopy shows that high temperature activation treatment does not destroy the result of carbon fiber, but activated treatment has formed many micropo...

Embodiment 3

[0041] A microbial fuel cell catalytic reaction catalyst and its catalytic activity research, including the following steps:

[0042] 1) Use 1.0 μm, 0.5 μm, and 0.03 μm electrode polishing powder to treat the vita electrodes, and then clean it in ultrasound in water -free ethanol and ion water in sequence for 10 minutes, dry at 30 ° C;

[0043] 2) Reading 0.5 μg Examples 2 The carbonized cobweb powder obtained by prepared, add 50 μL of ionic water, 100 μl water -free ethanol, and 2 μlnafion solution to prepare a catalyst research solution;

[0044] 3) Take the 8 μL catalyst research solution and drip to the surface of the dry glass carbon electrode, dry it at 30 ° C, you can be used as a working electrode;

[0045] 4) Put the modified electrode in N 2 O 2 Electrochemical testing is performed in the 0.1mkoh solution, including cyclic voltty scanning, rotating disc electrode linear scanning, and studying prepared carbonized catalytic catalytic performance, stability, and methanolic ...

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Abstract

The invention discloses a cobweb-based porous activated carbon fiber material and an application. The preparation method comprises the follow steps: collecting a cobweb in an environment and removing impurities in the cobweb; ultrasonically cleaning the cobweb with deionized water, hydrochloric acid and ethanol in sequence for 20-40 minutes, cleaning the cobweb with ultrapure water and drying the cobweb; pre-carbonizing the dried cobweb at 200-400 DEG C, naturally cooling the cobweb to room temperature and mixing the cobweb with an activating reagent; and grinding the mixture evenly, and carbonizing the mixture at 700-1,000 DEG C to obtain the porous activated carbon fiber. The porous activated carbon fiber prepared by the method can be used as a microbial fuel cell cathode catalyst and an electrode material, is low in cost, simple in method, stable in performance and good in activity, and provides a new thought for resource utilization of natural waste.

Description

Technical field [0001] The present invention involves a porous active carbon fiber material and application based on spider silk. Background technique [0002] Carbon fiber is a new non -metallic fiber material with a carbon content greater than 90%(mass score). It is a functional material and structural material with excellent properties.It has the advantages of high strength, low density, small thermal expansion coefficient, good conductivity and heat conduction performance; in addition, it also has the characteristics of high temperature resistance, friction resistance, corrosion resistance, etc.There are important application value in many fields such as architecture and electrical appliances.At present, the preparation methods of carbon fiber materials include static textile and thermal carbonization method.The former is to use the exclusion force between the accumulation of static charge and the stretching force of the high -voltage electrostatic field to prepare the nano -...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): H01M4/90
CPCH01M4/9083Y02E60/50
Inventor 袁勇周丽华傅鹏孙丽华
Owner GUANGDONG INST OF ECO ENVIRONMENT & SOIL SCI
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