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Nano carbon doped electrocatalyst for fuel cell, and application of nano carbon doped electrocatalyst

An electrocatalyst and fuel cell technology, applied in battery electrodes, physical/chemical process catalysts, circuits, etc., to achieve the effects of fast speed, easy operation, and high anti-poisoning performance

Inactive Publication Date: 2013-04-17
DALIAN INST OF CHEM PHYSICS CHINESE ACAD OF SCI
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

This patent is limited to nano-carbon catalysts prepared from nitro-amino-containing aromatic compounds

Method used

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  • Nano carbon doped electrocatalyst for fuel cell, and application of nano carbon doped electrocatalyst
  • Nano carbon doped electrocatalyst for fuel cell, and application of nano carbon doped electrocatalyst
  • Nano carbon doped electrocatalyst for fuel cell, and application of nano carbon doped electrocatalyst

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Experimental program
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Effect test

Embodiment 1

[0047] Non-noble metal catalysts doped with Co metal and nitrogen. Take 0.13g Co(NO 3 ) 2 .6H 2 Dissolve O in 10 ml of ethanol, and ultrasonically mix to obtain solution A; dissolve 2.66 ml of N-containing organic precursor hexanediamine in 20 ml of ethanol, and ultrasonically mix to obtain solution B; Dropwise into A, the color of solution A changed from purple to light purple, and gradually changed to blue, and finally turned to khaki to obtain C; then it was sealed, and after stirring for 2 hours, the XC-72 carbon The powder was added to the above mixture C, and after ultrasonically mixed uniformly, continued stirring for 1 h, and then the microwave in the microwave reactor with the output power of 700W was stopped for 10 seconds for 10 seconds, and the microwave and the residence process were repeated three times to obtain the mixture D; the slurry D was placed in a water bath. Evaporate to dryness at 60°C; vacuum dry at 85°C to obtain solid powder E; treat solid powder...

Embodiment 2

[0049] Take 0.0694g Co(NO 3 ) 2 Dissolved in 10ml of ethanol solvent, ultrasonically mixed uniformly to obtain solution A; dissolved N organic precursor hexamethylenediamine containing 0.00143mol in 20ml of ethanol, and ultrasonically mixed uniformly to obtain solution B; Add dropwise to A to obtain C; then seal it, continue stirring for 2h, add XC-72 carbon powder to the above mixture C, after ultrasonically mixing evenly, continue stirring for 1h, and then in a microwave reactor with an output power of 700W The microwave was stopped for 10 seconds for 10 seconds and repeated three times to obtain mixture D; the slurry D was evaporated to dryness at 60°C on a water bath; vacuum dried at 85°C to obtain solid powder E; the solid powder E was treated at 700°C in a nitrogen atmosphere 2 hours.

Embodiment 3

[0051] Take 0.402g Fe(NO 3 ) 3 .6H 2 Dissolve O in ethanol solvent, and ultrasonically mix evenly to obtain solution A; dissolve N organic precursor hexamethylenediamine containing 0.00357 mol in 30 ml of isopropanol, and ultrasonically mix to obtain solution B; B was dropped into A dropwise to obtain C; then it was sealed, and after continuing to stir for 2 hours, 0.39 g of XC-72 carbon powder was added to the above mixture C, and after ultrasonically mixed uniformly, the stirring was continued for 1 hour, and then the output power was The microwave in the 700W microwave reactor was stopped for 10 seconds for 10 seconds, and repeated three times to obtain mixture D; the slurry D was evaporated to dryness on a water bath at 60°C; vacuum-dried at 85°C to obtain solid powder E; the solid powder E was placed in a nitrogen atmosphere Treated at 900°C for 2 hours.

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Abstract

The invention relates to a nano carbon doped electrocatalyst for a fuel cell, and application of the nano carbon doped electrocatalyst. The electrocatalyst is prepared by adopting the steps of: complexing a nitrogen-containing and / or boron-containing organic precursor and a transition metal salt to form a composite; adding nano carbon as a carrier, and heating and reacting a mixture by adopting a microwave radiation method; and after the reaction is complete, filtering and drying, placing a product obtained after the reaction in an inert atmosphere and / or reducing atmosphere, and treating at a high temperature of 500-1500 DEG C to obtain the nano carbon doped electrocatalyst. The nano carbon doped electrocatalyst is very low in cost, high in activity and stability and excellent in anti-poisoning capacity.

Description

technical field [0001] The invention relates to the field of fuel cell catalysts, in particular to a fuel cell non-precious metal electrocatalyst and its preparation and application. Background technique [0002] A fuel cell is an electrochemical device that converts chemical energy stored in fuel and oxidant directly into electrical energy through electrode reactions. Because of its high energy conversion efficiency, environmental friendliness, low noise, and fast startup, it is considered to be one of the clean and efficient power generation technologies preferred in the 21st century. energy technology. Vigorously developing fuel cell technology is of great significance to solve the two major problems of "energy shortage" and "environmental pollution" currently faced by the world and to achieve energy diversification. After years of hard work, fuel cells have been successfully demonstrated in the fields of electric vehicles, household cogeneration systems, and decentrali...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): H01M4/90H01M4/96B01J27/24
CPCY02E60/50
Inventor 张华民钟和香王美日柳丝丝
Owner DALIAN INST OF CHEM PHYSICS CHINESE ACAD OF SCI
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