Direct methanol fuel cell anode catalyst and preparation method thereof

A methanol fuel cell and catalyst technology, applied in battery electrodes, chemical instruments and methods, physical/chemical process catalysts, etc., can solve problems such as high cost, difficult commercial application of DMFC, and weak anti-CO poisoning ability

Inactive Publication Date: 2013-04-10
HANGZHOU INST OF ADVANCED MATERIAL BEIJING UNIV OF CHEM TECH
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Although DMFC has theoretically high power density and good application prospects, the main component of the catalyst currently used in direct methanol fuel cell anodes is platinum, resulting in high cost, and the weak resistance of Pt to CO poisoning directly leads to DMFC is difficult to apply commercially

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment l

[0009] 5mL 2mmol / L of H 2 PtCl 6 After the ethylene glycol solution is mixed with 100ml of 0.1mol NaOH ethylene glycol solution, add 4.5g of nanoparticle CeO 2 , into N 2 , refluxed at 160°C for 2 hours; centrifuged the obtained product, washed 3 times with deionized water and absolute ethanol, and dried to obtain 0.04wt%Pt / CeO 2 Composite catalyst.

Embodiment 2

[0011] 2mL 10mmol / L H 2 PtCl 6 After the ethylene glycol solution is mixed with 100ml of 1mol NaOH ethylene glycol solution, add 1.95g of nanoparticle CeO 2 , into N 2 , refluxed at 120°C for 4 hours; centrifuged the obtained product, washed 3 times with deionized water and absolute ethanol, and dried to obtain 0.2wt%Pt / CeO 2 Composite catalyst.

Embodiment 3

[0013] 2mL 19mmol / L H 2 PtCl 6 After the ethylene glycol solution is mixed with 100ml of 0.1mol NaOH ethylene glycol solution, add 1.9g of nanoparticle CeO 2 , into N 2 , refluxed at 140°C for 3 hours; centrifuged the obtained product, washed 3 times with deionized water and absolute ethanol, and dried to obtain 0.4wt%Pt / CeO 2 Composite catalyst.

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Abstract

The invention discloses a direct methanol fuel cell anode catalyst and a preparation method thereof. The catalyst is composed of an active component nano Pt and a CeO2 carrier, wherein the active component comprises the following components by weight percent: 0.05-0.4wt% of P and the balance of the carrier. The preparation method comprises the steps of firstly preparing the ceric oxide carrier by a sol-gel method, and then, loading the active component on the carrier by a deposition-precipitation method. The catalyst is used as the direct methanol fuel cell anode catalyst, and has the advantages of high methanol oxidative activity and strong carbon monoxide poisoning resistance.

Description

technical field [0001] The invention relates to the field of fuel cells, in particular to a catalyst for direct methanol fuel cell anodes and a preparation method thereof. Background technique [0002] The direct methanol fuel cell (DMFC) has high energy conversion efficiency and low environmental pollution, and is especially suitable for small electronic devices such as mobile phones, camcorders and notebook computers. Although DMFC has theoretically high power density and good application prospects, the main component of the catalyst currently used in direct methanol fuel cell anodes is platinum, resulting in high cost, and the weak resistance of Pt to CO poisoning directly leads to DMFC is difficult to apply commercially. Therefore, the preparation of platinum nanoparticles with small particle size and uniform distribution and composite catalysts with strong resistance to CO poisoning is a current research hotspot. Studies have shown that CeO 2 It has good catalytic ac...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): B01J23/63H01M4/92
CPCY02E60/50
Inventor 银凤翔王亮陈标华李国儒
Owner HANGZHOU INST OF ADVANCED MATERIAL BEIJING UNIV OF CHEM TECH
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