Cubic feooh or fe supported on nanocarbon ribbons 4 (fe(cn) 6 ) 3 The preparation method and application of

A nano-carbon and cube technology, applied in the field of electrochemistry, can solve the problems of easy loss of catalytic sites and impedance, and achieve the effect of simple preparation method, stable structure, and catalytic performance promotion

Inactive Publication Date: 2021-06-11
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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  • Cubic feooh or fe supported on nanocarbon ribbons <sub>4</sub> (fe(cn) <sub>6</sub> ) <sub>3</sub> The preparation method and application of
  • Cubic feooh or fe supported on nanocarbon ribbons <sub>4</sub> (fe(cn) <sub>6</sub> ) <sub>3</sub> The preparation method and application of
  • Cubic feooh or fe supported on nanocarbon ribbons <sub>4</sub> (fe(cn) <sub>6</sub> ) <sub>3</sub> The preparation method and application of

Examples

Experimental program
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Effect test

Embodiment 1

[0035] This embodiment discloses a preparation method for growing square-shaped FeOOH on a carbon tape, which is prepared by the following steps:

[0036] 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);

[0037] S2. Add a certain amount of deionized water to the mixture in step S1, and stir at room temperature;

[0038] S3, filtering the mixture in step S2, drying, and pulverizing;

[0039] S4, the product gained in step S3 is put into qu...

Embodiment 2

[0042] 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:

[0043] 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);

[0044] S2. Add a certain amount of deionized water to the mixture in step S1, and stir at room temperature;

[0045] S3, filtering the mixture in step S2, drying, and pulverizing;

[0046] S4, the product gained in step S3 is...

Embodiment 3

[0053] 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:

[0054] 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);

[0055] S2. Add a certain amount of deionized water to the mixture in step S1, and stir at room temperature;

[0056] S3, filtering the mixture in step S2, drying, and pulverizing;

[0057] 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 900-950°C 4 (Fe(CN) 6 ) 3 Supported carbon ribbons, FeOOH and Fe loaded on nano-carbon ribbons were obtained at 980-1...

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Abstract

The invention discloses a cubic FeOOH or Fe loaded on a nano-carbon ribbon 4 (Fe(CN) 6 ) 3 The preparation method and application of the invention, the steps are as follows: select an ion exchange resin as a carbon source, and mix it with ferrous chloride; add ionic water, stir at room temperature, filter and vacuum dry to remove moisture, and obtain the ion exchange resin after Fe exchange; The ion exchange resin is crushed and put into a quartz boat, mixed with sodium carbonate in a certain proportion, and then placed in a tube furnace, under N 2 Under the atmosphere, the tube furnace is preheated first, and then the quartz boat is pushed to the heating center for heating to obtain cubic FeOOH or Fe 4 (Fe(CN) 6 ) 3 Loaded carbon ribbon; finally, after grinding, pickling, water washing and ethanol centrifugal washing, vacuum drying to remove impurities from the carbon ribbon. The method is green and simple, and the prepared carbon ribbon can improve the performance of the 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 Patents(China)
IPC IPC(8): H01M4/90H01M12/08
CPCH01M4/9083H01M12/08Y02E60/10
Inventor 孟辉林智鹏
Owner JINAN UNIVERSITY
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