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Low temperature solid oxide fuel cell electrolyte membrane and preparation method

A solid oxide, electrolyte membrane technology, applied in solid electrolyte fuel cells, fuel cells, circuits, etc., can solve the problems of low oxygen ion conduction efficiency, increased internal resistance, poor electrical conductivity, etc., to achieve low cost and internal resistance. Small, the effect of reducing the operating temperature

Inactive Publication Date: 2018-07-20
CHENDU NEW KELI CHEM SCI CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, since the oxide fuel cells all use ceramic materials, the conductivity of ceramic materials is poor at low temperatures due to low oxygen ion conduction efficiency at low temperatures and increased internal resistance.

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0041] Example 1 Low Temperature Solid Oxide Fuel Cell Electrolyte Membrane

[0042] Prepare as follows:

[0043] 1. Weigh raw materials: 16 parts by weight of brominated diphenyl ether, 20 parts by weight of 1,5-cyclooctadiene, 12 parts by weight of 2,2-bipyridyl, 15 parts by weight of dimethylformamide, graphene oxide 11 parts by weight, 26 parts by weight of nitromethane, 6 parts by weight of ferric chloride, and 24 parts by weight of hydrazine hydrate.

[0044] 2. Preparation:

[0045] a, under the protection of nitrogen, reflux the brominated diphenyl ether, 1,5-cyclooctadiene, 2,2-bipyridine, dimethylformamide, and graphene oxide in toluene of the above weight parts, and the reaction temperature is 110°C, the reaction time is 13 hours, and the modified graphene oxide is obtained after separation and purification;

[0046] b. Ultrasonic disperse the above 20 parts of modified graphene oxide in water, add nitromethane and ferric chloride, then ultrasonically vibrate, ad...

Embodiment 2

[0048] Example 2 Low Temperature Solid Oxide Fuel Cell Electrolyte Membrane

[0049] Prepare as follows:

[0050] 1. Weigh raw materials: 14 parts by weight of brominated diphenyl ether, 18 parts by weight of 1,5-cyclooctadiene, 10 parts by weight of 2,2-bipyridyl, 12 parts by weight of dimethylformamide, graphene oxide 7 parts by weight, 24 parts by weight of nitromethane, 5 parts by weight of ferric chloride, and 20 parts by weight of hydrazine hydrate.

[0051] 2. Preparation:

[0052] a, under the protection of nitrogen, reflux the brominated diphenyl ether, 1,5-cyclooctadiene, 2,2-bipyridine, dimethylformamide, and graphene oxide in toluene of the above weight parts, and the reaction temperature is 105°C, the reaction time is 10 hours, and the modified graphene oxide is obtained after separation and purification;

[0053] b. Ultrasonic disperse the above 18 parts of modified graphene oxide in water, add nitromethane and ferric chloride, then ultrasonically vibrate, add...

Embodiment 3

[0055] Example 3 Low Temperature Solid Oxide Fuel Cell Electrolyte Membrane

[0056] Prepare as follows:

[0057] 1. Weigh raw materials: 18 parts by weight of brominated diphenyl ether, 24 parts by weight of 1,5-cyclooctadiene, 14 parts by weight of 2,2-bipyridyl, 16 parts by weight of dimethylformamide, graphene oxide 12 parts by weight, 28 parts by weight of nitromethane, 7 parts by weight of ferric chloride, and 26 parts by weight of hydrazine hydrate.

[0058] 2. Preparation:

[0059] a, under the protection of nitrogen, reflux the brominated diphenyl ether, 1,5-cyclooctadiene, 2,2-bipyridine, dimethylformamide, and graphene oxide in toluene of the above weight parts, and the reaction temperature is 115°C, the reaction time is 16 hours, and the modified graphene oxide is obtained after separation and purification;

[0060] b. Ultrasonic disperse the above 22 parts of modified graphene oxide in water, add nitromethane and ferric chloride, then ultrasonically vibrate, ad...

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PUM

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Abstract

The invention relates to a low temperature solid oxide fuel cell electrolyte membrane and a preparation method and belongs to the technical field of fuel cells. The preparation method of the low temperature solid oxide fuel cell electrolyte membrane comprises the following steps of: refluxing bromodiphenyl ether, 1,5-cyclooctadiene, 2,2-dipyridyl, dimethylformamide and graphite oxide in methylbenzene under nitrogen protection, performing separation and purification to form modified graphite oxide, performing ultrasonic dispersion on modified graphite oxide in water, adding nitromethane and ferric trichloride, performing ultrasonic oscillating, adding hydrazine hydrate for reaction, obtaining wavy graphene after separation and purification, and mixing the wavy graphene and a solid oxide electrolyte for calendering and sintering to form the electrolyte membrane. The internal resistance of the prepared low temperature solid oxide fuel cell electrolyte membrane is smaller during low temperature operation, and the electrolyte membrane has high oxygen ion conductivity.

Description

technical field [0001] The invention relates to a low-temperature solid oxide fuel cell electrolyte membrane and a preparation method, belonging to the technical field of fuel cells. Background technique [0002] The solid oxide fuel cell belongs to the third generation of fuel cells, which is an all-solid-state chemical power generation device that directly converts the chemical energy stored in fuel and oxidant into electrical energy in an efficient and environmentally friendly manner at medium and high temperatures. It is generally considered to be a fuel cell that will be widely used in the future like the proton exchange membrane fuel cell. [0003] In addition to the advantages of high efficiency and low pollution of general fuel cells, it also has the following characteristics: (1) The operating temperature of solid oxide fuel cells can reach 1000 ° C, which is the highest operating temperature of all fuel cells through heat recovery technology Combined thermoelectri...

Claims

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Application Information

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IPC IPC(8): H01M8/10H01M8/1016
CPCH01M8/1004H01M8/1018H01M8/1069Y02E60/50
Inventor 陈庆廖健淞
Owner CHENDU NEW KELI CHEM SCI CO LTD
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