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PdNiW/C ternary alloy nano catalyst and preparation method thereof

A nano-catalyst, ternary alloy technology, applied in metal/metal oxide/metal hydroxide catalysts, physical/chemical process catalysts, chemical instruments and methods, etc., can solve the problem of limited research on direct ethanol fuel cells and no basic research. Problems such as invention reports, to avoid concentrated growth, avoid agglomeration, and have good dispersibility

Inactive Publication Date: 2015-03-18
SHANGHAI UNIVERSITY OF ELECTRIC POWER
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  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

Due to the limited research of direct ethanol fuel cell at present, and reasons such as different experimental systems, there is no similar report of the present invention

Method used

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  • PdNiW/C ternary alloy nano catalyst and preparation method thereof
  • PdNiW/C ternary alloy nano catalyst and preparation method thereof
  • PdNiW/C ternary alloy nano catalyst and preparation method thereof

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Embodiment 1

[0059] A PdNiW / C ternary alloy nano catalyst is a PdNiW / C ternary alloy nano catalyst formed with Pd, Ni and W as active centers and XC-72 activated carbon as a carrier;

[0060] The amount of the active center of the PdNiW / C ternary alloy nanocatalyst and the carrier XC-72 activated carbon is calculated according to the mass ratio, that is, the quality of the XC-72 activated carbon: the total mass of Pd, Ni and W is 4:1;

[0061] In the active center of the PdNiW / C ternary alloy nanocatalyst, calculated by molar ratio, Pd:Ni:W is 7:2:1.

[0062] The preparation method of above-mentioned a kind of PdNiW / C ternary alloy nano-catalyst, concrete steps are as follows:

[0063] (1), 11.86mgPdCl 2 Dissolve in 50ml ethylene glycol solution, ultrasonic for 1h to form solution 1;

[0064] (2), add 0.5g L successively to the solution 1 formed in step (1) -1 NiCl 2 ·6H 2 O in ethylene glycol solution 9.1ml, 1g L -1 Na 2 WO 4 2.8ml of ethylene glycol solution, adjust the pH value ...

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Abstract

The invention discloses a PdNiW / C ternary alloy nano catalyst and a preparation method thereof. The PdNiW / C ternary alloy nano catalyst takes Pd, Ni and W as the activity center and activated carbon as a carrier; according to the molar ratio, the ratio of Pd to Ni to W is 7:2:1; and according to mass ratio, the ratio of the mass of the activated carbon to the total mass of Pd, Ni and W is 4:1. The preparation method comprises the following steps of: mixing ethylene glycol solutions of PdCl2, NiCl2.6H2O and Na2WO4, regulating the pH value to be 9, increasing the temperature to be 80 DEG C, reacting for 1hour, adding the activated carbon, continuing stirring and reacting for 30 minutes, adding a sodium citrate aqueous solution, carrying out ultrasound treatment for 30 minutes, further adding a NaBH4 aqueous solution, stirring and reacting for 3 hours at 50 DEG C, cooling to the room temperature and carrying out vacuum filtration, washing and drying so as to obtain the PdNiW / C ternary alloy nano catalyst with good dispersity and good catalytic oxidation performance on ethanol in an alkali environment.

Description

Technical field [0001] The present invention is the field of nano -catalyst material preparation technology, which involves a high -catalytic active PDNIW / C triangle alloy nano -catalyst and its preparation method for ethanol. Background technique [0002] Catalyst plays a vital role in fuel cells.The catalyst used in fuel cells is precious metal catalysts based on PT -based metals in both catalysts or anode catalysts.The price of PT -based metal is expensive, and the proportion of costs in costs, coupled with the restrictions on resource restrictions of such catalysts, develop high -activated new types of catalysts to increase their utilization and reduce dosage.direction.In recent years, people have found that the use of PD as a fuel cell catalyst has obvious effects, and research has achieved certain results. [0003] PD catalyst is an emerging catalyst in fuel cells in recent years, which has a significant catalytic oxidation effect on the fuel cell [1,2] , Gradually attracte...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): B01J23/89H01M4/92
CPCY02E60/50
Inventor 徐群杰刘明爽李巧霞周罗增
Owner SHANGHAI UNIVERSITY OF ELECTRIC POWER
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