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Preparing technology of solid polymer water electrolysis oxygen evolution catalyst iridium oxide

A technology of solid polymer and oxygen catalyst, which is applied in the direction of metal/metal oxide/metal hydroxide catalyst, physical/chemical process catalyst, electrolysis process, etc. low level problem

Inactive Publication Date: 2018-11-16
浙江高成绿能科技有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

The iridium oxide obtained by the above two methods has a large particle size and low purity, which cannot meet the actual production needs

Method used

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  • Preparing technology of solid polymer water electrolysis oxygen evolution catalyst iridium oxide
  • Preparing technology of solid polymer water electrolysis oxygen evolution catalyst iridium oxide
  • Preparing technology of solid polymer water electrolysis oxygen evolution catalyst iridium oxide

Examples

Experimental program
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Effect test

Embodiment 1

[0029] Take 1g of iridium salt, add 5g of magnesium salt and stir evenly, then add 50g of distilled water to dissolve completely. Stir continuously for 1 hour during heating in a water bath at 50°C to disperse the reaction evenly, dry it, then put it in a preheated oven for calcination at 600°C for 1 hour, take it out and cool it to room temperature, and finally wash it with suction to obtain the finished iridium oxide I.

Embodiment 2

[0031] Take 1g of iridium salt, add 13g of magnesium salt and stir evenly, then add 70g of distilled water to dissolve completely. Stir continuously for 5 hours during the heating process in a water bath at 80°C to make the reaction disperse evenly, dry it, then put it into a preheated oven for calcination at 300°C for 5 hours, take it out and cool it to room temperature, and finally wash it with suction to obtain the finished iridium oxide I.

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Abstract

The invention discloses a preparing technology of solid polymer water electrolysis oxygen evolution catalyst iridium oxide. The preparing technology of solid polymer water electrolysis oxygen evolution catalyst iridium oxide is characterized by comprising the steps that iridium salt is dispersed in a dispersion agent with magnesium salt as a component, and dispersion liquid is formed; an iridium salt solid phase obtained through the dispersion liquid is subject to calcination and oxidation. In the preparing technology, the chemical state and the size of iridium salt are not changed, ant it isensured that finally, the purity and the grain size of iridium oxide are within the controllable range.

Description

technical field [0001] The utility model relates to the technical field of catalysts, in particular to a preparation process for a solid polymer water electrolysis oxygen catalyst iridium oxide. Background technique [0002] Hydrogen production by electrolysis of water has broad development prospects. At present, solid polymer electrolyte (SPE) water electrolysis technology is considered to be the most promising due to its advantages of high working efficiency, high purity of hydrogen generated, and long-term stable operation at high current density. Hydrogen production by electrolysis of water. The oxygen evolution catalyst of SPE water electrolysis technology is mainly noble metal oxides such as iridium oxide. The preparation process of such noble metal oxides is complicated and the production cost is high, which is the main reason restricting the rapid development and industrialization of SPE water electrolysis technology. [0003] At present, the preparation methods of ...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C25B1/04C25B11/06B01J23/46
CPCB01J23/468C25B1/04C25B11/04Y02E60/36
Inventor 范峰强李国强魏燕姚宇希
Owner 浙江高成绿能科技有限公司
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