Carbon-carried platinum-based catalyst for fuel cell and its preparation method

A fuel cell, carbon-supported platinum technology, used in catalyst activation/preparation, chemical instruments and methods, physical/chemical process catalysts, etc., can solve the problem that the particle size distribution of active components is not uniform, the process is not easy to control, and the process flow is complicated. and other problems, to achieve the effect of uniform particle size distribution of active components, high recovery rate and simple process
CN1803292AInactive Publication Date: 2006-07-19SOUTH CHINA UNIV OF TECH
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Patent Information

Authority / Receiving Office
CN · China
Current Assignee / Owner
SOUTH CHINA UNIV OF TECH
Publication Date
2006-07-19
Estimated Expiration
Not applicable · inactive patent

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Abstract

The invention discloses a making method of platinum-on-carbon based catalyst in the fuel battery, which comprises the following steps: adding the metal salt pioneer body, complexing agent and alcohol reducer in the organic solvent; stirring at atmospheric temperature; adding alkaline material; adjusting the pH value; protecting heat reflux through nitrogen or in the autoclave; adding the carbon carrier to stir at atmospheric temperature; diffusing the metal sol particle evenly on the carbon carrier; adding acid material to adjust the pH value; adding second distilled water to break sol through ultrasonic shock; filtering the filter cake until the Cl- is not detected; drying the vacuum; cooling; grinding to produce the platinum-on-carbon based catalyst within Pt / C, Pt-Ru / C, Pt-Ru-Ir / C, Pt / CNT, Pt-Ru / CNT and Pt-Ru-Ir / CNT.
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Description

technical field

[0001] The invention relates to the field of fuel cell catalysts, in particular to a carbon-supported platinum-based catalyst for fuel cells and a preparation method thereof. Background technique

[0002] A fuel cell is a device that directly converts the chemical energy of fuel into electrical energy efficiently and cleanly. Proton exchange membrane fuel cells (PEMFC) and direct alcohol fuel cells (DAFC) are considered to be the most promising fuel cells for transportation, communication and other mobile applications, because these two types of batteries are used in vehicle power sources, various mobile communication Therefore, the research on this kind of fuel cell has been highly valued by various countries.

[0003] At present, these two types of fuel cells have encountered some problems in the commercialization process, the most prominent of which are their high price and short life. For RPEMFC and DAFC fueled by reformed gas, th...

Claims

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