A kind of porous carrier of electrode catalyst for proton exchange membrane fuel cell

An electrode catalyst, proton exchange membrane technology, applied in fuel cells, battery electrodes, electrochemical generators, etc., can solve problems such as hindering catalyst use efficiency, catalyst poisoning, complexity, etc., to improve catalytic activity, utilization efficiency, and preparation cost. The effect of low and simple operation of the preparation process

Active Publication Date: 2018-05-11
ZHANGJIAGANG IND TECH RES INST CO LTD DALIAN INST OF CHEM PHYSICS CHINESE ACADEMY OF SCI
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0004] For above-mentioned situation, in order to overcome the defective of prior art, the purpose of the present invention is exactly to provide a kind of porous carrier of electrode catalyst of proton exchange membrane fuel cell, and purpose is to solve the complicated operation of traditional carrier preparation process, when the prepared carrier supports catalyst, it is easy to Problems that hinder the use efficiency of the catalyst and easily cause catalyst poisoning

Method used

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  • A kind of porous carrier of electrode catalyst for proton exchange membrane fuel cell
  • A kind of porous carrier of electrode catalyst for proton exchange membrane fuel cell
  • A kind of porous carrier of electrode catalyst for proton exchange membrane fuel cell

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Embodiment 1

[0027] A kind of porous carrier of the electrode catalyst of proton exchange membrane fuel cell that the present invention proposes, described porous carrier is made of toluenesulfonyl chloride, SiO 2 After reacting with Vulcan XC-72, react with polydimethylsiloxane and azobisisobutylcyanide, and finally react with dimethyl sulfoxide and ethylene glycol dimethacrylate to make a porous carrier; the porous The carrier has a volatile and adjustable porous structure. After being dissolved by solvents with different ratios, it is attached to the electrode, and the negative time and thickness can be adjusted.

[0028] Its preparation method specifically comprises the following steps:

[0029] S1. Weigh toluenesulfonyl chloride and SiO respectively 2 15g each of Vulcan XC-72, heated and stirred with 150ml of dilute HCl, the heating temperature is 120°C, and the stirring time is 1h. After the reaction is complete, the organic phase is obtained by extraction, and excess benzyl peroxid...

Embodiment 2

[0035] A kind of porous carrier of the electrode catalyst of proton exchange membrane fuel cell that the present invention proposes, described porous carrier is made of toluenesulfonyl chloride, SiO 2 After reacting with Vulcan XC-72, react with polydimethylsiloxane and azobisisobutylcyanide, and finally react with dimethyl sulfoxide and ethylene glycol dimethacrylate to make a porous carrier; the porous The carrier has a volatile and adjustable porous structure. After being dissolved by solvents with different ratios, it is attached to the electrode, and the negative time and thickness can be adjusted.

[0036] Its preparation method specifically comprises the following steps:

[0037] S1. Weigh toluenesulfonyl chloride and SiO respectively 2 15g each of Vulcan XC-72, heated and stirred with 140ml of dilute HCl, the heating temperature is 115°C, and the stirring time is 1.2h. After the reaction is complete, the organic phase is obtained by extraction, and excess benzene pero...

Embodiment 3

[0043] A kind of porous carrier of the electrode catalyst of proton exchange membrane fuel cell that the present invention proposes, described porous carrier is made of toluenesulfonyl chloride, SiO 2 After reacting with Vulcan XC-72, react with polydimethylsiloxane and azobisisobutylcyanide, and finally react with dimethyl sulfoxide and ethylene glycol dimethacrylate to make a porous carrier; the porous The carrier has a volatile and adjustable porous structure. After being dissolved by solvents with different ratios, it is attached to the electrode, and the negative time and thickness can be adjusted.

[0044] Its preparation method specifically comprises the following steps:

[0045] S1. Weigh toluenesulfonyl chloride and SiO respectively 2 15g each of Vulcan XC-72, heated and stirred with 160ml of dilute HCl, the heating temperature is 130°C, and the stirring time is 0.8h. After the reaction is complete, the organic phase is obtained by extraction, and excess benzene pero...

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Abstract

The invention discloses a porous carrier of an electrode catalyst for a proton exchange membrane fuel cell, and solves the problems of operational complexity of the conventional carrier preparation process, and high probability of affecting use efficiency of a catalyst and causing positioning of the catalyst when the prepared carrier is loaded with the catalyst. The porous carrier is obtained by the steps of enabling toluenesulfonyl chloride and SiO<2> to be reacted with Vulcan XC-72, then reacting with polydimethyl siloxane and azobisisobutyronitrile, and finally reacting with dimethyl sulfoxide and ethylene glycol dimethacrylate, The porous carrier has a volatility-regulating-controlling porous structure, so that the loading time and thickness can be regulated and controlled after the carrier is dissolved by solvents of different proportions. The porous carrier of the electrode catalyst for the proton exchange membrane fuel cell provided by the invention is high in affinity on the catalyst, high in conduction effect, capable of effectively improving catalytic activity of the catalyst, also has simple operation of the preparation process and low cost, and is worthy of popularization.

Description

technical field [0001] The invention relates to the technical field of proton exchange membrane fuel cells, in particular to a porous carrier of an electrode catalyst for a proton exchange membrane fuel cell. Background technique [0002] Proton exchange membrane fuel cell (PEMFC) has a higher specific power than other fuel cells due to its low operating temperature, fast start-up, and no electrolyte loss. It can be used as a power source for both fixed power stations and mobile vehicles. Become one of the most competitive power sources to replace the current car power. At present, many countries and cities around the world, such as London, Vancouver, Canada, and Stuttgart, Germany, have launched fuel cell-powered bus lines, and many countries have demonstrated fuel cell vehicles in trial operation. China has also successfully launched fuel cell-powered buses and cars during the Beijing Olympic Games and Shanghai World Expo, and more than 1,000 vehicles have been put into t...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): H01M4/90
CPCH01M4/90H01M4/9075H01M8/0243Y02E60/50
Inventor 于书淳陈俊彩路宜蕾何春霞郭会娟刘会雪马晓星
Owner ZHANGJIAGANG IND TECH RES INST CO LTD DALIAN INST OF CHEM PHYSICS CHINESE ACADEMY OF SCI
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