Preparation method and application of cubic FeOOH or Fe4(Fe(CN)6)3 loaded on nanocarbon ribbon

A cubic and nano-carbon technology, applied in the field of electrochemistry, can solve the problem of easy loss of resistance of catalytic sites, and achieve the effects of simple preparation method, promotion of catalytic performance, and stable structure

Inactive Publication Date: 2019-03-12
JINAN UNIVERSITY
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

[0003] In order to overcome the shortcomings of traditional catalysts directly mixed with carbon materials in the prior art, which lead to the loss of catalytic sites or high impedance, a cubic FeOOH or Fe loaded on nanocarbon ribbons is provided. 4 (Fe(CN) 6 ) 3 The preparation method, that is, the catalyst (FeOOH, Fe 4 (Fe(CN) 6 ) 3 ) anchored on the ribbon

Method used

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  • Preparation method and application of cubic FeOOH or Fe4(Fe(CN)6)3 loaded on nanocarbon ribbon
  • Preparation method and application of cubic FeOOH or Fe4(Fe(CN)6)3 loaded on nanocarbon ribbon
  • Preparation method and application of cubic FeOOH or Fe4(Fe(CN)6)3 loaded on nanocarbon ribbon

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Embodiment 1

[0036]This embodiment discloses a preparation method for growing square-shaped FeOOH on a carbon tape, which is prepared by the following steps:

[0037] S1, the cation exchange resin was mixed with different proportions of transition metal salt FeCl 3 ·6H 2 O mixed to obtain mixture 1 (cation exchange resin: FeCl 3 ·6H 2 The mass ratio of O is 1:1), mixture 2 (cation exchange resin: FeCl 3 ·6H 2 The mass ratio of O is 1:2) and mixture 3 (cation exchange resin: FeCl 3 ·6H 2 The mass ratio of O is 1:4); mixture 4 (cation exchange resin: FeCl 3 ·6H 2 The mass ratio of O is 1:6); mixture 5 (cation exchange resin: FeCl 3 ·6H 2 The mass ratio of O is 1:8); mixture 6 (cation exchange resin: FeCl 3 ·6H 2 The mass ratio of O is 1:10);

[0038] S2. Add a certain amount of deionized water to the mixture in step S1, and stir at room temperature;

[0039] S3, filtering the mixture in step S2, drying, and pulverizing;

[0040] S4, the product gained in step S3 is put into qua...

Embodiment 2

[0043] This embodiment discloses a kind of carbon belt growing square-shaped Fe 4 (Fe(CN) 6 ) 3 The preparation method is prepared by the following steps:

[0044] S1, the cation exchange resin was mixed with different proportions of transition metal salt FeCl 3 ·6H 2 O mixed to obtain mixture 1 (cation exchange resin: FeCl 3 ·6H 2 The mass ratio of O is 1:1), mixture 2 (cation exchange resin: FeCl 3 ·6H 2 The mass ratio of O is 1:2) and mixture 3 (cation exchange resin: FeCl 3 ·6H 2 The mass ratio of O is 1:4); mixture 4 (cation exchange resin: FeCl 3 ·6H 2 The mass ratio of O is 1:6); mixture 5 (cation exchange resin: FeCl 3 ·6H 2 The mass ratio of O is 1:8); mixture 6 (cation exchange resin: FeCl 3 ·6H 2 The mass ratio of O is 1:10);

[0045] S2. Add a certain amount of deionized water to the mixture in step S1, and stir at room temperature;

[0046] S3, filtering the mixture in step S2, drying, and pulverizing;

[0047] S4, the product gained in step S3 is...

Embodiment 3

[0054] This embodiment discloses a carbon ribbon growing square FeOOH or Fe 4 (Fe(CN) 6 ) 3 The preparation method is obtained by the following preparation steps:

[0055] S1, the cation exchange resin was mixed with different proportions of transition metal salt FeSO 4 Mix to obtain a mixture (cation exchange resin: FeSO 4 The mass ratio is 1:1);

[0056] S2. Add a certain amount of deionized water to the mixture in step S1, and stir at room temperature;

[0057] S3, filtering the mixture in step S2, drying, and pulverizing;

[0058] S4, the product gained in step S3 is put into quartz boat and mixed with a certain proportion of sodium carbonate, then placed in tube furnace, under N 2 Under the atmosphere, pre-heat the tube furnace to 900-1000°C, then push the quartz boat to the heating center position, heat for 2-30min, and obtain square-shaped Fe at 900-980°C 4 (Fe(CN) 6 ) 3 Loaded carbon ribbons, 980~1000°C to obtain square FeOOH-loaded carbon ribbons;

[0059] S...

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Abstract

The invention discloses a preparation method and application of cubic FeOOH or Fe4(Fe(CN)6)3 loaded on a nanocarbon ribbon. The preparation method comprises the following steps: selecting ion exchangeresin as a carbon source, and mixing with ferrous chloride; adding deionized water, then stirring at room temperature, filtering and performing vacuum drying to remove moisture, so that ion exchangeresin after Fe is exchanged is obtained; smashing the ion exchange resin and putting the smashed ion exchange resin into a quartz boat, mixing with sodium carbonate in a certain proportion, then putting into a tubular furnace, in a N2 atmosphere, firstly performing preheating on the tubular furnace, and then pushing the quartz boat to a heating central position to be heated, so that a carbon ribbon loaded with the cubic FeOOH or Fe4(Fe(CN)6)3 is obtained; and finally performing grinding, acid pickling, washing, ethanol centrifugal washing and vacuum drying, so that impurities of the carbon ribbon are removed. The preparation method disclosed by the invention is green and simple, and the prepared carbon ribbon can improve performance of a lithium-air battery.

Description

technical field [0001] The invention relates to the technical field of electrochemistry, in particular to a cubic FeOOH or Fe loaded on a nanocarbon ribbon 4 (Fe(CN) 6 ) 3 The preparation method and application of the carbon material can be applied to the fields of lithium-air batteries and fuel cells. Background technique [0002] The development and application of lithium-ion batteries have brought great convenience to people's lives, but the insurmountable defects in the mechanism of lithium-ion batteries (low energy density) limit its further application, making it unable to meet the needs of electric vehicle power batteries. demand. With the development of energy research, it has been found that metal-air batteries can overcome this shortcoming, especially lithium-air batteries have attracted more and more attention from researchers because of their energy density comparable to that of gasoline, making them promising to become the next generation of power batteries ...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): H01M4/90H01M12/08
CPCH01M4/9083H01M12/08Y02E60/10
Inventor 孟辉林智鹏
Owner JINAN UNIVERSITY
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