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A kind of preparation method of methanol fuel cell anode catalyst

A methanol fuel cell and catalyst technology, which is applied in battery electrodes, circuits, electrical components, etc., can solve the problems of high cost and difficult application of fuel cells, and achieve the effects of strong anti-poisoning ability, low production cost, and cost reduction.

Active Publication Date: 2018-03-16
临沂星火知识产权服务有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

One of the most important reasons is the high cost of fuel cells due to the use of Pt as a catalyst material, which makes it difficult to be widely used

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0015] (1) Preparation of cobalt hydroxide suspension: Add cobalt hydroxide and sodium hexametaphosphate into deionized water, the mass ratio of cobalt hydroxide to sodium hexametaphosphate is 1:1, and ultrasonically disperse and mix evenly to obtain a concentration of 0.5g / L of cobalt hydroxide solution;

[0016] (2) Preparation of phenolic resin-coated polystyrene microspheres: Add polystyrene microspheres with a particle size of 250 nm into deionized water at a concentration of 5%, and then add catechol with a concentration of 1mol / L in sequence. Ethanol solution, concentration is the aqueous solution of 1mol / L furfural, and the mol ratio of its catechol and furfural is 1: 1; The mass ratio of described catechol and polystyrene microsphere 1: 5, carries out hydrothermal reaction , to obtain polystyrene microspheres coated with phenolic resin;

[0017] (3) Preparation of platinum-supported catalyst suspension: chloroplatinic acid (H 2 PtCl 6 ) was added to deionized wate...

Embodiment 2

[0020] (1) Preparation of cobalt hydroxide suspension: add cobalt hydroxide and sodium hexametaphosphate into deionized water, the mass ratio of cobalt hydroxide to sodium hexametaphosphate is 3:1, and ultrasonically disperse and mix evenly to obtain a concentration of 1g / L of cobalt hydroxide solution;

[0021] (2) Preparation of phenolic resin-coated polystyrene microspheres: Add polystyrene microspheres with a particle size of 250 nm into deionized water at a concentration of 5%, and then add catechol with a concentration of 1mol / L in sequence. Ethanol solution, concentration is the aqueous solution of 1mol / L furfural, and the mol ratio of its catechol and furfural is 1: 1; The mass ratio of described catechol and polystyrene microsphere 1: 5, carries out hydrothermal reaction , to obtain polystyrene microspheres coated with phenolic resin;

[0022] (3) Preparation of platinum-supported catalyst suspension: chloroplatinic acid (H 2 PtCl 6 ) was added to deionized water ...

Embodiment 3

[0025] (1) Preparation of cobalt hydroxide suspension: add cobalt hydroxide and sodium hexametaphosphate into deionized water, the mass ratio of cobalt hydroxide to sodium hexametaphosphate is 1:1, and ultrasonically disperse and mix evenly to obtain a concentration of 1g / L of cobalt hydroxide solution;

[0026] (2) Preparation of phenolic resin-coated polystyrene microspheres: Add polystyrene microspheres with a particle size of 500 nm into deionized water at a concentration of 5%, and then add catechol with a concentration of 1mol / L in sequence. Ethanol solution, concentration is the aqueous solution of 1mol / L furfural, and the mol ratio of its catechol and furfural is 1: 1; The mass ratio of described catechol and polystyrene microsphere 1: 5, carries out hydrothermal reaction , to obtain polystyrene microspheres coated with phenolic resin;

[0027] (3) Preparation of platinum-supported catalyst suspension: chloroplatinic acid (H 2 PtCl 6 ) was added to deionized water ...

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Abstract

The invention relates to the field of preparation of an electrode catalyst, and aims to provide a preparation method for an anode catalyst of a methanol fuel cell. The preparation method for the anode catalyst of the methanol fuel cell comprises the following steps of preparing a cobalt hydroxide suspension liquid, coating polystyrene microspheres with phenolic resin, preparing platinum loaded catalyst suspension liquid, spray-drying the platinum loaded catalyst suspension liquid, and carrying out high-temperature calcination to obtain a carbon supported platinum catalysts taking Co3O4 as a catalyst promoter. The anode catalyst prepared according to the method has relatively large specific surface area, the capability of bearing a catalytic center per unit is high, and the anti-toxicity of the catalyst is further improved. The preparation cost is low, the preparation process is simple and practical, and industrial production at a large scale can be achieved.

Description

technical field [0001] The invention belongs to the field of electrode catalyst preparation, and in particular relates to a method for preparing an anode catalyst of a methanol fuel cell. Background technique [0002] In today's era, with the continuous development of society, the demand for energy is increasing, and the global fossil resources are decreasing. Therefore, the development of alternative and green energy has become an urgent research topic. As an efficient, clean and environmentally friendly new power generation technology, fuel cells can directly convert the chemical energy stored in fuel into electrical energy in an electrochemical way, and are known as one of the new energy power generation technologies in the 21st century. There are mainly the following types of fuel cells currently being researched or developed in China: Alkaline Fuel Cells (AFC), Phosphoric Acid Fuel Cells (PAFC), Molten Carbonate Fuel Cells (MCFC), Solid Oxide Fuel Cells (SOFC) and Metha...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): H01M4/88H01M4/90H01M4/92
CPCH01M4/88H01M4/90H01M4/9016H01M4/92H01M4/926Y02E60/50
Inventor 车春玲
Owner 临沂星火知识产权服务有限公司
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