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Nitrogen-doped graphdiyne as well as preparation method and application thereof

A graphdiyne and nitrogen doping technology is applied in chemical instruments and methods, electrical components, circuits, etc., to achieve the effects of simple and reliable preparation process, large output current and high catalytic efficiency

Active Publication Date: 2015-06-03
INST OF PROCESS ENG CHINESE ACAD OF SCI
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, there are no relevant reports on the preparation of oxygen reduction catalyst materials based on nitrogen-doped graphyne in the prior art.

Method used

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  • Nitrogen-doped graphdiyne as well as preparation method and application thereof
  • Nitrogen-doped graphdiyne as well as preparation method and application thereof
  • Nitrogen-doped graphdiyne as well as preparation method and application thereof

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0039] Put the quartz boat filled with graphdiyne powder into the middle part of the quartz tube of the tube furnace, and pass N 2 The mixed gas with Ar, with a nitrogen content of 1%, was heated to 200°C and kept for 10 minutes to obtain nitrogen-doped graphyne.

Embodiment 2

[0041] Put the quartz boat filled with graphdiyne powder into the middle of the quartz tube of the tube furnace, pass in the mixed gas of NO and Ar, the NO content is 25%, heat to 400°C, and keep it for 30 minutes to obtain nitrogen-doped graphite alkyne.

Embodiment 3

[0043] Put the quartz boat filled with graphdiyne powder into the middle part of the quartz tube of the tube furnace, and feed NH 3 with N 2 mixed gas, NH 3 The content is 55%, heated to 600°C and kept for 100 minutes to obtain nitrogen-doped graphyne.

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Abstract

The invention discloses nitrogen-doped graphdiyne serving as an oxygen reduction electric catalyst and a composite material of the nitrogen-doped graphdiyne. The invention further relates to a preparation method of the nitrogen-doped graphdiyne. The nitrogen-doped graphdiyne material is obtained by heating graphdiyne power in mixed gas with a nitrogen source under certain temperature, keeping the temperature for certain time, and then naturally cooling the material. The catalyst material is high in activity; compared with a more commercial Pt / C catalyst, the catalyst material has the advantages of high output current, correction of reduction potential, high methanol interference resistance, high stability and the like.

Description

technical field [0001] The invention belongs to the technical field of fuel cells, and relates to a nitrogen-doped graphyne, a preparation method and its use, in particular to a nitrogen-doped graphyne, a preparation method and its use, and a nitrogen-doped graphyne composite material and a preparation method And its use, nitrogen-doped graphyne and nitrogen-doped graphyne composite materials can be used as oxygen reduction catalyst materials. Background technique [0002] Fuel cells have always been a hot spot in the field of energy research because of their superior performance and environmental pollution. The fuel cell has the following characteristics: high energy conversion efficiency; it directly converts the chemical energy of the fuel into electrical energy without the combustion process in the middle, so it is not limited by the Carnot cycle. The fuel-to-electricity conversion efficiency of the fuel cell system is 45% to 60%, while the efficiency of thermal power g...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): B01J27/24H01M4/90
CPCY02E60/50
Inventor 张光晋刘荣基张双双
Owner INST OF PROCESS ENG CHINESE ACAD OF SCI
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