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2-ethyl-anthraquinone modified gas diffusion electrode and preparation method thereof

An ethyl anthraquinone, diffusion electrode technology, applied in the field of 2-ethyl anthraquinone modified gas diffusion electrode and its preparation, can solve the influence of hydrogen peroxide reaction activity, transportation and storage increase cost, hydrogen peroxide reaction The problem of high activity is to avoid transportation, improve hydrophobicity, and achieve the effect of high reactivity.

Active Publication Date: 2010-07-14
BEIJING UNIV OF CHEM TECH
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, due to the strong oxidation of hydrogen peroxide, its transportation, storage and other problems greatly increase the cost
And the reactivity of hydrogen peroxide stored for a long time is affected, which is not as high as the reactivity of hydrogen peroxide generated immediately on site
[0004] 2) Degradation efficiency problem

Method used

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  • 2-ethyl-anthraquinone modified gas diffusion electrode and preparation method thereof
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  • 2-ethyl-anthraquinone modified gas diffusion electrode and preparation method thereof

Examples

Experimental program
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Effect test

Embodiment 1

[0031] 1) Soak a 6cm*6cm carbon cloth in 5% polytetrafluoroethylene emulsion for 5 seconds, dry it at 80°C for 10 minutes and weigh it. Calcined for 3min to obtain a hydrophobic carbon cloth, and obtain a hydrophobic carbon cloth as a current collector and a support;

[0032] 2) Graphitize Vulcan 72 carbon black at 2800°C for 2 hours to obtain graphitized Vulcan 72 carbon black; weigh 0.36g of graphitized Vulcan 72 carbon black and dissolve it in 30ml of isopropanol (24g), then add 0.1ml After the polytetrafluoroethylene emulsion (0.15g) with a mass fraction of 60% is stirred evenly, it is spread on a 6cm*6cm hydrophobic carbon cloth, dried at 80°C for 1h, and calcined at 360°C for 3min in a muffle furnace , press on a hot press at 0.7MPa and room temperature for 30s to obtain a gas diffusion layer.

[0033] 3) The mixed solution of isopropanol and deionized water is used as a dispersant, the volume ratio of isopropanol to deionized water is 1:4, 0.045g 2-ethylanthraquinone a...

Embodiment 2

[0036] 1) Soak a 6cm*6cm carbon cloth in 5% polytetrafluoroethylene emulsion for 5 seconds, dry it at 80°C for 20 minutes and weigh it. Calcined for 4 minutes to obtain a hydrophobic carbon cloth as a current collector and a support.

[0037] 2) Vulcan 72 carbon black was graphitized at a high temperature of 2800° C. for 2 hours to obtain graphitized Vulcan 72 carbon black. Weigh 0.315g of graphitized Vulcan 72 carbon black and dissolve it in 40ml of isopropanol (32g), then add 0.18ml of 60% polytetrafluoroethylene emulsion (0.225g) by mass and stir evenly, then smear on 6cm* 6cm hydrophobic carbon cloth, dried at 80°C for 2h, calcined in a muffle furnace at 360°C for 4min, and pressed on a hot press at 1.4MPa and room temperature for 60s to obtain a gas diffusion layer.

[0038] 3) A mixed solution of isopropanol and deionized water is used as a dispersant, and the volume ratio of isopropanol to deionized water is 1:5. 0.09g 2-ethylanthraquinone and 0.315g Vulcan 72 carbon ...

Embodiment 3

[0040] 1) Soak a 6cm*6cm carbon cloth in 5% polytetrafluoroethylene emulsion for 5 seconds, dry it at 80°C for 20 minutes and weigh it. Calcined for 4 minutes to obtain a hydrophobic carbon cloth as a current collector and a support.

[0041] 2) Graphitize Vulcan 72 carbon black at 2800°C for 2 hours to obtain graphitized Vulcan 72 carbon black, weigh 0.315g of graphitized Vulcan 72 carbon black and dissolve it in 40ml of isopropanol (32g), then add 0.18ml The polytetrafluoroethylene emulsion (0.225g) with a mass fraction of 60% is stirred evenly, spread on a 6cm*6cm hydrophobic carbon cloth, dried at 80°C for 2h, and calcined at 360°C for 4min in a muffle furnace , pressed on a hot press at 1.4MPa and room temperature for 60s to obtain a gas diffusion layer.

[0042] 3) The mixed solution of isopropanol and deionized water is used as a dispersant, and the volume ratio of isopropanol to deionized water is 1:5, and 0.135g 2-ethylanthraquinone (the mass of 2-ethylanthraquinone ...

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Abstract

The invention discloses a 2-ethyl-anthraquinone modified gas diffusion electrode which is composed of a gas diffusion layer and a catalyst layer, the gas diffusion layer is a mixture (2) of hydrophobic carbon cloth (1), graphitized Vulcan 72 carbon black and polytetrafluoroethylene coated on the hydrophobic carbon cloth, the catalyst layer (3) is a mixture of 2-ethyl-anthraquinone, Vulcan 72 carbon black and polytetrafluoroethylene coated on the diffusion layer mixture (2); the invention also discloses a preparation method of the above gas diffusion electrode, which is implemented by preparing hydrophobic carbon cloth, coating the mixture of graphitized Vulcan 72 carbon black and polytetrafluoroethylene on the hydrophobic carbon cloth, coating the mixture of 2-ethyl-anthraquinone, Vulcan 72 carbon black and polytetrafluoroethylene on the diffusion layer mixture (2), and heating. The invention can not cause secondary pollution to the environment, can is applicable to electrolyzation in organic waste water degradation industry.

Description

technical field [0001] The invention relates to a gas diffusion electrode suitable for degrading organic waste water and a preparation method thereof, in particular to a 2-ethylanthraquinone modified gas diffusion electrode and a preparation method thereof, which can be used for degrading waste water. Background technique [0002] With the increasing types and discharge of industrial wastewater, traditional methods are difficult to meet the requirements of a series of organic wastewater degradation, advanced oxidation technology has become a research hotspot. Advanced oxidation technologies include: wet air oxidation, supercritical water oxidation, photochemical and photocatalytic oxidation, sonochemical oxidation, electrochemical oxidation, Fenton oxidation. At present, an advanced oxidation method combining electrochemical oxidation and Fenton oxidation has become the preferred method for studying the degradation of organic wastewater, because compared with other technolog...

Claims

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Application Information

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IPC IPC(8): C02F1/461
Inventor 王峰王盛吉静刘景军
Owner BEIJING UNIV OF CHEM TECH
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