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Method for preparing support-type cobalt oxide catalyst

A manufacturing method and technology of cobalt oxide, applied in metal/metal oxide/metal hydroxide catalysts, physical/chemical process catalysts, chemical instruments and methods, etc., can solve the problem of uneven catalyst particle size, lengthy manufacturing process, Unable to reduce fuel cell manufacturing costs and other issues, to achieve the effect of easy operation and lower manufacturing costs

Inactive Publication Date: 2014-11-26
NATIONAL UNIVERSITY OF TAINAN
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

[0005] In summary, although metal cobalt and its related compounds and alloys have been used as fuel cell catalysts for several years, the manufacturing process of such catalysts is too lengthy, which may not be conducive to the large-scale manufacturing of fuel cells.
Furthermore, the particle size of this type of catalyst is generally uneven, making it impossible for the fuel cell to exert the optimum electrical performance, let alone reduce the manufacturing cost of the fuel cell

Method used

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  • Method for preparing support-type cobalt oxide catalyst
  • Method for preparing support-type cobalt oxide catalyst
  • Method for preparing support-type cobalt oxide catalyst

Examples

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Effect test

preparation example 1

[0043] First, while stirring the aqueous ethanol solution (the volume ratio of ethanol and water is 1:1), add 0.22mmol of cobalt chloride hexahydrate and 0.22mmol of ethylenediamine to the aqueous solution to allow the cobalt ions and ethylenediamine to react to form Expressed as [Co(en) 1 (H 2 O) 4 ] 3+ of cobalt complexes. Add 450 mg of Vulcan XC-72 carbon black to the aqueous solution to allow the carbon black to adsorb the cobalt complex, and the weight ratio of cobalt ions adsorbed on the carbon black to the carbon black is about 2%. Next, ultrasonically treat the obtained mixed solution for 24 hours, so that the cobalt complex in the mixed solution is uniformly distributed therein. The mixed solution is placed in a dehydrator, and the mixed solution is dehydrated by the dehydrator in a vacuum environment, and the aqueous solution in the mixed solution is removed to obtain a dry product. Finally, the product was dried by microwave treatment with an output power of 2,...

preparation example 2

[0046] First, while stirring the aqueous ethanol solution (the volume ratio of ethanol and water is 1:1), add 0.22mmol of cobalt chloride hexahydrate and 0.22mmol of diethylenetriamine to the aqueous solution to allow cobalt ions and diethylenetriamine The reaction forms expressed as [Co(DETA) 1 (H 2 O) 3 ] 3+ of cobalt complexes. Add 450 mg of Vulcan XC-72 carbon black to the aqueous solution to allow the carbon black to adsorb the cobalt complex, and the weight ratio of cobalt ions adsorbed on the carbon black to the carbon black is about 2%. Next, ultrasonically treat the obtained mixed solution for 24 hours, so that the cobalt complex in the mixed solution is uniformly distributed therein. The mixed solution is placed in a dehydrator, and the mixed solution is dehydrated by the dehydrator in a vacuum environment, and the aqueous solution in the mixed solution is removed to obtain a dry product. Finally, the product was dried by microwave treatment with an output power...

preparation example 3

[0049] First, while stirring the aqueous ethanol solution (the volume ratio of ethanol and water is 1:1), add 0.22mmol of cobalt chloride hexahydrate and 0.22mmol of porphyrin to the aqueous solution, allowing cobalt ions and porphyrin to react to form [Co(pP) 1 (H 2 O) 2 ] 3+ of cobalt complexes. Add 450 mg of Vulcan XC-72 carbon black to the aqueous solution to allow the carbon black to adsorb the cobalt complex, and the weight ratio of cobalt ions adsorbed on the carbon black to the carbon black is about 2%. Next, ultrasonically treat the obtained mixed solution for 24 hours, so that the cobalt complex in the mixed solution is uniformly distributed therein. The mixed solution is placed in a dehydrator, and the mixed solution is dehydrated by the dehydrator in a vacuum environment, and the aqueous solution in the mixed solution is removed to obtain a dry product. Finally, the product was dried by microwave treatment with an output power of 2,500 W for 10 minutes to obta...

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Abstract

The invention discloses a method for preparing a catalyst, which comprises the following steps: adding cobaltous chloride, a chelating agent and a carbon material in a solvent, reacting cobalt ion (CO<3+>) in cobaltous chloride and the chelating agent to form a cobalt complex attached on the carbon material to prepare the mixed liquor, drying the mixed liquor to obtain the dried product; and performing microwave treatment on the dried product to form the support-type cobalt oxide catalyst, wherein the support-type cobalt oxide catalyst contains a carrier and cobalt oxide particles supported on the carrier.

Description

technical field [0001] The present invention relates to a method for manufacturing a catalyst, and in particular to a method for manufacturing a supported cobalt oxide catalyst. Background technique [0002] Fuel cells have the advantages of low polluting gas emissions, low noise and renewable, so they are regarded as an environmentally friendly, clean and pollution-free power generation equipment, and are gradually replacing diesel engines or gasoline in commercial, residential and transportation purposes. Engines and other traditional petrochemical power generation equipment. [0003] The working principle of the fuel cell is as follows: (1) After hydrogen enters the battery, an oxidation reaction occurs at the anode of the battery to generate hydrogen ions (H + ) and release electrons, this process is called "anode half-reaction"; (2) the hydrogen ions generated are transported to the cathode of the battery through the electrolyte or proton exchange membrane of the batte...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): B01J23/75H01M4/90
CPCY02E60/50
Inventor 黄家宏刘世钧黄镇江李书锋陈立家吴贞宜
Owner NATIONAL UNIVERSITY OF TAINAN
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