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In-situ preparation method of multi-grade carbon based iron nickel hydroxide and product thereof and application

A nickel hydroxide, in-situ preparation technology, applied in the direction of metal/metal oxide/metal hydroxide catalysts, chemical instruments and methods, catalyst activation/preparation, etc., can solve problems such as expensive equipment, achieve low cost, The effect of controllable shape, simple equipment and operation

Active Publication Date: 2018-07-20
CHONGQING UNIV
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Ex-situ bonding presents problems with bond firmness, while vapor deposition requires expensive equipment

Method used

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  • In-situ preparation method of multi-grade carbon based iron nickel hydroxide and product thereof and application
  • In-situ preparation method of multi-grade carbon based iron nickel hydroxide and product thereof and application
  • In-situ preparation method of multi-grade carbon based iron nickel hydroxide and product thereof and application

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0031] A kind of in-situ preparation method of multi-level carbon-based iron-nickel hydroxide, comprising the steps of:

[0032] (1) Preparation of multilevel carbon-based acicular nanowire / needle arrays:

[0033] a. Put the cut carbon cloth in acetone, sonicate it for 15 minutes, and put it in alcohol for 15 minutes to remove impurities on the surface of the commercial carbon cloth, and rinse it with deionized water until the carbon cloth becomes super hydrophilic and obtains a hydrophilic water carbon cloth;

[0034] b. 6.5g disodium hydrogen phosphate (Na 2 HPO 4 ) and 5.8g sodium dihydrogen phosphate (NaH 2 PO 4 ) was dissolved in 200mL deionized water to obtain a phosphate buffer solution;

[0035] c. Add 1.4 mL of pyrrole to the phosphate buffer solution prepared in step b, and then ultrasonically treat the solution to fully disperse the pyrrole in the solution to obtain an electrodeposition electrolyte;

[0036] d. use the hydrophilic carbon cloth obtained in step...

Embodiment 2

[0041] A kind of in-situ preparation method of multi-level carbon-based iron-nickel hydroxide, comprising the steps of:

[0042] (1) Preparation of polypyrrole nanowires on carbon cloth:

[0043] a. Put the cut carbon cloth in acetone, sonicate it for 15 minutes, and put it in alcohol for 15 minutes to remove impurities on the surface of the commercial carbon cloth, and rinse it with deionized water until the carbon cloth becomes super hydrophilic and obtains a hydrophilic water carbon cloth;

[0044] b. 6.5g disodium hydrogen phosphate (Na 2 HPO 4 ) and 5.8g sodium dihydrogen phosphate (NaH 2 PO 4 ) was dissolved in 200mL deionized water to obtain a phosphate buffer solution;

[0045] c. Add 1.4 mL of pyrrole to the phosphate buffer solution in step b, and then ultrasonically treat the solution to fully disperse the pyrrole in the solution to obtain an electrodeposition electrolyte;

[0046]d. the hydrophilic carbon cloth processed with step a is used as a working elect...

Embodiment 3

[0051] A kind of in-situ preparation method of multi-level carbon-based iron-nickel hydroxide, comprising the steps of:

[0052] (1) Preparation of polypyrrole nanowires on carbon cloth:

[0053] a. Put the cut carbon cloth in acetone, sonicate it for 15 minutes, and put it in alcohol for 15 minutes to remove impurities on the surface of the commercial carbon cloth, and rinse it with deionized water until the carbon cloth becomes super hydrophilic and obtains a hydrophilic water carbon cloth;

[0054] b. 6.5g disodium hydrogen phosphate (Na 2 HPO 4 ) and 5.8g sodium dihydrogen phosphate (NaH 2 PO 4 ) was dissolved in 200mL deionized water to obtain a phosphate buffer solution;

[0055] c. Add 1.4 mL of pyrrole to the phosphate buffer solution in step b, and then ultrasonically treat the solution to fully disperse the pyrrole in the solution to obtain an electrodeposition electrolyte;

[0056] d. the hydrophilic carbon cloth processed with step a is used as a working elec...

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Abstract

The invention relates to an in-situ preparation method of multi-grade carbon based iron nickel hydroxide and a product thereof and application. The method is characteirzed in that a polypyrrole nanowire / needle array grown in-situ on a carbon fabric by an electrochemical method and then is thermally processed to obtain the multi-grade carbon based needle shaped nanowire / needle array utilizing the carbon fabric as a substrate; and then the iron nickel hydroxide is loaded in situ. The method is simple, and low in cost; the prepared multi-grade carbon based nano needle / wire array is high in specific area controllable in appearance, high in oxygen evolution catalyzing performance, and widely applicable to the fields of energy storage and conversion.

Description

technical field [0001] The invention belongs to the field of self-supporting catalytic materials, and relates to an in-situ preparation method of multi-level carbon-based iron-nickel hydroxide; it also relates to products and applications prepared by the method. Background technique [0002] In order to improve the conductivity of catalytic materials and increase the number of loading sites, some micro-nano-sized carbon materials (such as carbon nanotubes, graphene, carbon microspheres, etc.) are mixed with catalysts and then bonded with large-scale substrate materials. Non-in-situ growth methods, such as Park first loading graphene oxide on the melamine foam frame, high-temperature carbonization, and then supporting catalysts; there are also some in-situ growth methods using chemical vapor deposition, such as Ekspong, nitrogen-doped carbon nanotubes through Catalytic chemical vapor deposition directly grown on carbon fiber paper for catalyst loading. Ex-situ bonding has is...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): B01J23/755B01J35/06B01J37/08B01J37/10B01J37/34H01M4/90
CPCH01M4/9083B01J23/755B01J37/084B01J37/10B01J37/348B01J35/58B01J35/33Y02E60/50
Inventor 李猛张立阳邹婧王佳程孙宽周永利
Owner CHONGQING UNIV
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