Iron-nitrogen codope carbon microspheres as well as preparation method, application and oxygen reduction electrode

A technology of co-doping, carbon microspheres, applied in battery electrodes, circuits, electrical components, etc., can solve the problems of difficult large-scale synthesis, harsh conditions, complex synthesis process, etc., and achieve great application potential and industrial value, excellent performance, the effect of good electrochemical performance

Active Publication Date: 2017-05-31
温州邦欣源科技有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

But on the other hand, the synthesis process of this type of catalyst is complicated, the conditions are harsh,

Method used

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  • Iron-nitrogen codope carbon microspheres as well as preparation method, application and oxygen reduction electrode
  • Iron-nitrogen codope carbon microspheres as well as preparation method, application and oxygen reduction electrode
  • Iron-nitrogen codope carbon microspheres as well as preparation method, application and oxygen reduction electrode

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0068] S1: React hexachlorobutadiene, ferrocene and pyridine in a polytetrafluoroethylene-lined autoclave at 200°C and 1.5MPa for 6 hours, wherein the hexachlorobutadiene and ferrocene The mass ratio is 1:2, and the molar ratio of hexachlorobutadiene to pyridine is 1:1;

[0069] S2: After the reaction, the pressure was released to normal pressure, and naturally cooled to room temperature, and the obtained solid was dried at 115° C. for 7 hours to obtain a dry sample;

[0070] S3: The dry sample was calcined at a high temperature of 1000° C. for 2 hours under the protection of nitrogen to obtain an iron-nitrogen co-doped carbon microsphere composite material, which was named M1.

Embodiment 2-11

[0071] Embodiment 2-11: the investigation of material consumption ratio in step S1

Embodiment 2-5

[0072] Example 2-5: Except that the mass ratio of hexachlorobutadiene and ferrocene in step S1 is replaced by 1:0.2, 1:0.5, 1:1 and 1:4, other operations are unchanged, thus repeating Example 1 was operated, so that Examples 2-5 were carried out in sequence, and the obtained composite materials were named M2, M3, M4 and M5 in sequence.

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Abstract

The invention relates to a preparation method of an iron-nitrogen codope carbon microsphere composite material. The preparation method comprises the following steps: S1, performing sealed reaction on hexachlorobutadiene, an iron source compound and a nitrogen-containing compound at high temperature and high pressure; S2, after the reaction is completed, releasing the pressure to normal pressure, naturally cooling to the room temperature, and drying obtained solids so as to obtain a dried sample; S3, performing high-temperature roasting treatment on the dried sample in the presence of an inert gas, thereby obtaining the iron-nitrogen codope carbon microsphere composite material. The invention further relates to a composite material, application of the composite material, and an oxygen reduction electrode with the composite material. The iron-nitrogen codope carbon microsphere composite material is excellent in property, can be used for preparing the oxygen reduction electrode of a fuel battery, thus can be used in fuel batteries, is good in electrochemical property, and has great application potential and industrial values in the electrochemical field.

Description

technical field [0001] The present invention provides a composite material and its preparation method, use and electrode prepared therefrom, more specifically, it provides a kind of iron-nitrogen co-doped carbon microspheres and its preparation method, use and oxygen reduction The electrode belongs to the technical field of inorganic functional materials and electrochemical energy. Background technique [0002] Proton exchange membrane fuel cell (PEMFC) has excellent characteristics such as fast startup, long life, high energy, and no pollution, so it has good application prospects in many fields such as automobile power devices, mobile power sources, and power plants. But on the other hand, because there are still many technical bottlenecks that cannot be solved, the proton exchange membrane fuel cell is still far away from the real commercial application. [0003] By far the most commonly used fuel cell catalysts are platinum-based catalysts. However, due to the high pri...

Claims

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Application Information

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IPC IPC(8): H01M4/86H01M4/90
CPCH01M4/86H01M4/8652H01M4/90Y02E60/50
Inventor 王舜金辉乐蔺洁王继昌刘爱丽董小妹杨超刘萌冯诚冯如婷
Owner 温州邦欣源科技有限公司
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