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Carbon-carried multi-metal polypyrrole oxygen reduction catalyst and preparation method thereof

A polypyrrole and catalyst technology, applied in carbon-supported polypyrrole-based oxygen reduction catalyst and preparation thereof, in the field of catalyst research

Active Publication Date: 2012-11-21
SHANGHAI JIAO TONG UNIV
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

[0006] The purpose of the present invention is to provide a carbon-supported multi-metal polypyrrole oxygen reduction catalyst with better catalytic activity and its preparation method

Method used

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  • Carbon-carried multi-metal polypyrrole oxygen reduction catalyst and preparation method thereof

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Experimental program
Comparison scheme
Effect test

Embodiment 1

[0023] Embodiment 1: three-step synthetic method

[0024] Weigh 0.6g of Black Pears 2000 (BP2000) carbon black, add it into a conical flask containing 100ml of isopropanol, ultrasonically disperse it for 30min, add 3mmol of pyrrole and 100ml of double distilled water, stir for 30min, then add 100ml of 0.06mol / L of ammonium persulfate (APS) solution and 0.19 g of p-toluenesulfonic acid (TsOH), filtered after polymerization for 4 hours, washed repeatedly with absolute ethanol and double distilled water, and dried at 45°C for 12 hours. Add 0.5 g of the resulting product, 0.134 g of cobalt acetate tetrahydrate and 0.107 g of ferric nitrate nonahydrate into an Erlenmeyer flask filled with 200 ml of double-distilled water, ultrasonically disperse for 1 h and then stir for 2 h, then transfer to a round-bottomed flask and place at constant temperature The solvent was evaporated to dryness by rotary evaporation in a water bath. Then the obtained product was transferred to a quartz bo...

Embodiment 2

[0026] Embodiment 2: three-step synthetic method

[0027] Weigh 0.6g of Black Pears 2000 (BP2000) carbon black, add it into a conical flask containing 100ml of isopropanol, ultrasonically disperse it for 30min, add 3mmol of pyrrole and 100ml of double distilled water, stir for 30min, then add 100ml of 0.06mol / L of ammonium persulfate (APS) solution and 0.19 g of p-toluenesulfonic acid (TsOH), filtered after polymerization for 4 hours, washed repeatedly with absolute ethanol and double distilled water, and dried at 45°C for 12 hours. Add 0.5 g of the resulting product, 0.174 g of cobalt acetate tetrahydrate and 0.02 g of copper acetate monohydrate into a conical flask filled with 200 ml of double-distilled water, ultrasonically disperse for 1 h, then stir for 2 h, then transfer to a round-bottomed flask, and place at a constant temperature The solvent was evaporated to dryness by rotary evaporation in a water bath. Then the obtained product was transferred to a quartz boat an...

Embodiment 3

[0029] Embodiment 3: three-step synthetic method

[0030] Weigh 0.6g of Black Pears 2000 (BP2000) carbon black, add it into a conical flask containing 100ml of isopropanol, ultrasonically disperse it for 30min, add 3mmol of pyrrole and 100ml of double distilled water, stir for 30min, then add 100ml of 0.06mol / L of ammonium persulfate (APS) solution and 0.19 g of p-toluenesulfonic acid (TsOH), filtered after polymerization for 4 hours, washed repeatedly with absolute ethanol and double distilled water, and dried at 45°C for 12 hours. Add 0.5 g of the resulting product, 0.242 g of ferric nitrate nonahydrate and 0.05 g of manganese nitrate tetrahydrate into an Erlenmeyer flask filled with 200 ml of double distilled water, ultrasonically disperse for 1 h and then stir for 2 h, then transfer to a round-bottomed flask and place at constant temperature The solvent was evaporated to dryness by rotary evaporation in a water bath. Then the obtained product was transferred to a quartz ...

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Abstract

The invention relates to a carbon-carried multi-metal polypyrrole oxygen reduction catalyst and a preparation method thereof. The metal Co or Fe in the present carbon-carried single-metal polypyrrole oxygen reduction catalyst Co-PPy / C or Fe-PPy / C is locally substituted by one or more other metal, thereby obtaining the carbon-carried multi-metal polypyrrole oxygen reduction catalyst containing two or more metals, wherein the total weight of the metals is 0.01-30% of the weight of the catalyst, the weight of each metal is 1-99% of the total weight of the metals in the catalyst, and the weight ratio of carbon to polypyrrole in the catalyst is (1000:1)-(1:1). Compared with the prior art, the carbon-carried multi-metal polypyrrole oxygen reduction catalyst has the advantages of good catalytic effect and the like.

Description

technical field [0001] The invention belongs to catalyst research in the field of fuel cells, and in particular relates to a carbon-supported multimetal polypyrrole oxygen reduction catalyst for proton exchange membrane fuel cells and a preparation method thereof. Background technique [0002] Energy is the foundation of economic development. Without the development of energy industry, there would be no modern civilization. Human beings have been making unremitting efforts to use energy more effectively. With the development of modern civilization, people gradually realize that there are two major drawbacks in the traditional way of energy utilization. One is that the chemical energy stored in the fuel must first be converted into thermal energy, and then converted into mechanical energy or electrical energy for use. Due to the limitation of the Carnot cycle in this process, the actual energy utilization efficiency is only about 30%, and more than half of the energy is in va...

Claims

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Application Information

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IPC IPC(8): H01M4/90B01J31/06
CPCY02E60/50
Inventor 孔海川原鲜霞殷洁炜马紫峰
Owner SHANGHAI JIAO TONG UNIV
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