Preparation method of Fe/Fe3C nanoparticle-loaded porous nitrogen-doped carbon-based oxygen reduction catalyst

A nitrogen-doped carbon, nanoparticle technology, applied in nanotechnology, nanotechnology, nanotechnology for materials and surface science, etc., can solve problems such as loss of catalytic active sites, achieve excellent oxygen reduction performance, accelerate material The effect of transmission, high effective specific surface area
CN112652780AActive Publication Date: 2021-04-13HENAN NORMAL UNIV
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Patent Information

Authority / Receiving Office
CN · China
Patent Type
Applications(China)
Current Assignee / Owner
HENAN NORMAL UNIV
Publication Date
2021-04-13

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Abstract

The invention discloses a preparation method of a Fe / Fe3C nanoparticle-loaded porous nitrogen-doped carbon-based oxygen reduction catalyst, which comprises the following steps of by using SiO2 as a hard template, carrying out polymerization reaction on hydroxymethylated melamine and ferric acetylacetonate to prepare the novel Fe / Fe3C nanoparticle-loaded porous nitrogen-doped carbon-based oxygen reduction catalyst. The polymer containing iron, nitrogen and carbon is synthesized through polymerization reaction of hydroxymethylated melamine and ferric acetylacetonate, the graphitization degree of carbon can be effectively improved through Fe / Fe3C species formed in the pyrolysis process, the electrical conductivity of the material is enhanced, and then the catalytic activity of the catalytic material is improved. The specific surface area of the Fe / Fe3C nanoparticle-loaded porous nitrogen-doped carbon-based oxygen reduction catalyst prepared by the method is 1084 m<2>g<-1>, the average pore diameter is 7 nm, and the Fe / Fe3C nanoparticle-loaded porous nitrogen-doped carbon-based oxygen reduction catalyst has excellent oxygen reduction performance.
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Description

technical field

[0001] The invention belongs to the technical field of synthesis of non-noble metal doped carbon-based oxygen reduction catalytic materials, in particular to a Fe / Fe 3 Preparation method of C nanoparticle-supported porous nitrogen-doped carbon-based oxygen reduction catalyst. Background technique

[0002] The rapid development of industry has brought great social changes, but also brought a series of problems, such as energy crisis, environmental pollution and so on. Therefore, exploring and developing clean and efficient energy conversion devices and energy storage devices is an inevitable way to solve the above problems. As a new type of energy conversion device, fuel cells are considered to be one of the most promising technologies due to their environmental friendliness, low cost, and high energy conversion efficiency. Oxygen reduction reaction (ORR), as a key reaction in the fuel cell cathode, plays an important role in the conversion of chemical energ...

Claims

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