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Triatomic-scale dispersed metal cluster loaded nitrogen-doped nano carbon fuel cell catalyst

A technology of nitrogen-doped nano-carbon and metal clusters, applied in battery electrodes, circuits, electrical components, etc., can solve the problems of fuel cell catalysts that have not been reported publicly, and achieve excellent catalytic activity and stability of oxygen reduction reaction, The effect of good reproducibility and excellent oxygen reduction activity

Pending Publication Date: 2020-10-09
浙江晨阳新材料有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0005] The above prior art simply introduces related technologies about fuel cell catalyst materials and single-atom catalytic materials, but there is no public report on three-atom-level dispersed metal cluster fuel cell catalysts

Method used

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  • Triatomic-scale dispersed metal cluster loaded nitrogen-doped nano carbon fuel cell catalyst
  • Triatomic-scale dispersed metal cluster loaded nitrogen-doped nano carbon fuel cell catalyst
  • Triatomic-scale dispersed metal cluster loaded nitrogen-doped nano carbon fuel cell catalyst

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0031] Measure tetrahydrofuran (THF) 2mL, methanol (CH 3 OH) 4mL and stir well. After that, weigh the iron dodecacarbonyl (Fe 3 (CO) 12 ) crystals (purchased from Alfa Aesar) 15.1mg, Zn(NO 3 ) 2 ·6H 2 O (purchased from Shanghai Xinping Fine Chemical Co., Ltd.) 238mg dissolved in the above THF+CH 3 OH in a mixed solvent, and sonicated at 60°C for 1 h to obtain a clear solution A. Measure 1.2 mL of N,N-dimethylformamide (DMF), methanol (CH 3 OH) 0.8mL and mix well. Weigh 263 mg of 2-methylimidazole and dissolve in the above DMF+CH 3 OH solvent, then added to solution A, and stirred evenly to obtain solution B. The solution B was transferred to a hydrothermal reactor and reacted at 120°C for 4 hours, the product was taken out and then centrifuged, and then separated in THF and CH 3Washed 3 times and 2 times in OH, dried and taken out to obtain Fe 3 (CO) 12 @ZIF-8. Then put it in a muffle furnace at 800°C under H 2 (5%) / Ar mixed atmosphere and calcined for 2 hours. ...

Embodiment 2

[0034] By the same operation as in Example 1, just adjust the metal type of the triatomic metal cluster in the catalyst, specifically as follows:

[0035] Measure tetrahydrofuran (THF) 2mL, methanol (CH 3 OH) 4mL and stir well. Then weigh nonacarbonyl carbon tricobalt Co 3 (CO) 9 C crystals (purchased from Alfa Aesar) 9.7mg, Zn(NO 3 ) 2 ·6H 2 O (purchased from Shanghai Xinping Fine Chemical Co., Ltd.) 238mg dissolved in the above THF+CH 3 OH in a mixed solvent, and sonicated at 60°C for 1 h to obtain a clear solution A. Measure 1.2 mL of N,N-dimethylformamide (DMF), methanol (CH 3 OH) 0.8mL and mix well. Weigh 263 mg of 2-methylimidazole and dissolve in the above DMF+CH 3 OH solvent, then added to solution A, and stirred evenly to obtain solution B. The solution B was transferred to a hydrothermal reactor and reacted at 120°C for 4 hours, the product was taken out and then centrifuged, and then separated in THF and CH 3 OH washed 3 times and 2 times, dried and taken...

Embodiment 3

[0038] According to the same operation as in Example 1, just adjust the type of MOFs in the metal cluster catalyst dispersed at the triatomic level and adjust the corresponding synthesis process, as follows:

[0039] Measure tetrahydrofuran (THF) 2mL, methanol (CH 3 OH) 4mL and stir well. After that, weigh the iron dodecacarbonyl (Fe 3 (CO) 12 ) crystals (purchased from Alfa Aesar) 15.1mg, Zn(NO 3 ) 2 ·6H 2 O (purchased from Shanghai Xinping Fine Chemicals Co., Ltd.) 238mg and terephthalic acid 32.4mg were dissolved in the above THF+CH 3 In a mixed solvent of OH, a clear solution A was obtained. Measure 50.0 mL of N,N-dimethylformamide (DMF) and 263 mg of 2-methylimidazole, mix them and add to solution A, then transfer to a hydrothermal reaction kettle and react at 130°C for 4 hours, take out The product is then centrifuged, washed 3 times in DMF, dried, and taken out to obtain Fe 3 (CO) 12 @MOF-5. Then put it in a muffle furnace at 800°C under H 2 (5%) / Ar mixed atm...

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Abstract

The invention relates to a three-atomic-scale dispersed metal cluster fuel cell catalyst. The catalyst comprises a triatomic metal cluster and a nitrogen-doped nanocarbon material, metal in the triatomic metal cluster is dispersed on a substrate in the form of the triatomic cluster, the nitrogen-doped nanocarbon comprises a carbon source and a nitrogen source, and the triatomic metal cluster is loaded on the nitrogen-doped nanocarbon. A fuel cell assembled by the material exhibits an excellent cell performance. The catalyst has the advantages of simple and controllable steps, good reproducibility, and easy realization of industrial production.

Description

technical field [0001] The invention relates to the technical fields of metal catalysis and fuel cells, in particular to a triatomically dispersed metal cluster-supported nitrogen-doped nano-carbon fuel cell catalyst. Background technique [0002] A fuel cell is a power generation device that converts chemical energy in fuel into electrical energy through oxidation-reduction reactions with oxygen or oxidants. It has been discovered for 180 years and is known as the fourth stable power generation technology in human history after hydropower, thermal power and nuclear power generation. Depending on the fuel used, the fuel cell may produce a very small amount of carbon dioxide and other substances, causing less pollution to the environment. Among them, the hydrogen fuel cell is a zero-pollution green energy because it uses pure hydrogen as fuel and produces water. [0003] Although fuel cell technology has been widely used in aerospace, housing, transportation and other field...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): H01M4/90
CPCH01M4/90H01M4/9083Y02E60/50
Inventor 陈忠伟
Owner 浙江晨阳新材料有限公司
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