Nitrogen-doped graphene catalyst and preparation method and application thereof

A nitrogen-doped graphene and catalyst technology, which is applied in chemical instruments and methods, physical/chemical process catalysts, chemical/physical processes, etc., can solve problems such as difficult industrial production, high equipment requirements, and complex synthesis processes, and achieve The effect of easy process, high activity and simple preparation

Inactive Publication Date: 2014-03-05
DONGHUA UNIV
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

However, most of the doping methods require high equipment and complex synthesis processes, making it difficult to realize industrial production.

Method used

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  • Nitrogen-doped graphene catalyst and preparation method and application thereof
  • Nitrogen-doped graphene catalyst and preparation method and application thereof

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Embodiment 1

[0030] A nitrogen-doped graphene is made by roasting a nitrogen-doped graphene precursor, and the nitrogen-doped graphene precursor is prepared from raw materials including graphite oxide, cyanamide, and ferrous sulfate heptahydrate. The mass percent of graphite oxide in the raw material is 28wt%, the mass percent of cyanamide is 63wt%, and the mass percent of ferrous sulfate heptahydrate is 9wt%. (The above-mentioned mass percent is based on the total mass of the nitrogen-doped graphene precursor)

[0031] The preparation method of described nitrogen-doped graphene is: weigh 0.0600g FeSO 4 ·7H 2 O, 0.3500g of cyanamide and 0.1600g of graphite oxide were placed in an agate mortar, 20ml of analytically pure methanol was added, and fully ground until the methanol was completely volatilized. Put the agate mortar and the mixture into a vacuum oven at 60° C. for 1 h in vacuum to obtain a nitrogen-doped graphene precursor. Then, put the precursor in the quartz boat, under N 2 Un...

Embodiment 2

[0033] A nitrogen-doped graphene is made by roasting a nitrogen-doped graphene precursor, and the nitrogen-doped graphene precursor is prepared from raw materials including graphite oxide, dicyandiamide, and ferrous sulfate heptahydrate. The mass percent of graphite oxide in the raw material is 28wt%, the mass percent of dicyandiamide is 63wt%, and the mass percent of ferrous sulfate heptahydrate is 9wt%. (The above-mentioned mass percent is based on the total mass of the nitrogen-doped graphene precursor)

[0034] The preparation method of described nitrogen-doped graphene is: weigh 0.0600g FeSO 4 ·7H 2 O, 0.3500g dicyandiamide and 0.1600g graphite oxide were placed in an agate mortar. Add 20ml of methanol of analytical grade and grind thoroughly until the methanol is completely volatilized. Put the agate mortar and the mixture into a vacuum oven at 60° C. for 1 h in vacuum to obtain a nitrogen-doped graphene precursor. Then, put the precursor in the quartz boat, under N ...

Embodiment 3

[0036] A kind of nitrogen-doped graphene, made by roasting nitrogen-doped graphene precursor, described nitrogen-doped graphene precursor adopts the raw material preparation that comprises graphite oxide, melamine, ferrous sulfate heptahydrate, and described raw material The mass percent of graphite oxide in the medium is 28wt%, the mass percent of melamine is 63wt%, and the mass percent of ferrous sulfate heptahydrate is 9wt%. (The above-mentioned mass percent is based on the total mass of the nitrogen-doped graphene precursor)

[0037] The preparation method of described nitrogen-doped graphene is: weigh 0.0600g FeSO 4 ·7H 2 O, 0.3500g melamine and 0.1600g graphite oxide were placed in an agate mortar. Add 20ml of methanol of analytical grade and grind thoroughly until the methanol is completely volatilized. Put the agate mortar and the mixture into a vacuum oven at 60° C. for 1 h in vacuum to obtain a nitrogen-doped graphene precursor. Then, put the precursor in the qua...

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Abstract

The invention provides a nitrogen-doped graphene catalyst and a preparation method and application thereof. The nitrogen-doped graphene catalyst is characterized by being prepared by roasting a nitrogen-doped graphene precursor; the nitrogen-doped graphene precursor is prepared from the raw materials including at least one of non-precious metal salt and hydrate thereof, graphite oxide and nitrogen-containing small organic molecules; in the raw materials, the mass percent of the graphite oxide is 10-89wt%, the mass percent of the nitrogen-containing small organic molecules is 10-89wt%, and the mass percent of at least one of non-precious metal salt and hydrate thereof is 1-10wt%. The preparation process of the nitrogen-doped graphene provided by the invention is simple, the process is easy to operate, the activity is high, the cost is low, and industrial production is easy to implement; the nitrogen-doped graphene can be applied to the fields of fuel cells, metal-air cells, microbial fuel cells and the like.

Description

technical field [0001] The invention belongs to the field of graphene catalytic materials, in particular to a preparation method and application of nitrogen-doped graphene. Background technique [0002] With the rapid development of the economy and the increasing demand for energy, the development of energy storage and conversion technology has increasingly attracted extensive attention from scholars and media around the world. Among them, the fuel cell is a device that directly converts the chemical energy in the fuel into electrical energy. It has the advantages of high efficiency, no pollution, and diversification. It can be applied to small centralized power supply or decentralized power supply systems, especially in the field of electric vehicles. It has development potential and application prospect. [0003] At present, the main reasons restricting the commercialization of fuel cells are the cost and lifetime of the catalyst. The catalysts used in fuel cells are nob...

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 乔锦丽周学俊石晶晶卿欣
Owner DONGHUA UNIV
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