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Preparation method of anode catalyst Pt/CeO2 hollow ball-C used in direct methanol fuel cell

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 poor stability and low activity, and achieve easy operation, improved anti-poisoning ability, and strong storage and storage. The effect of oxygen capacity

Inactive Publication Date: 2013-11-20
HEILONGJIANG UNIV
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

[0003] The purpose of the present invention is to solve the technical problems of low activity and poor stability of the existing DMFC anode c

Method used

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  • Preparation method of anode catalyst Pt/CeO2 hollow ball-C used in direct methanol fuel cell
  • Preparation method of anode catalyst Pt/CeO2 hollow ball-C used in direct methanol fuel cell
  • Preparation method of anode catalyst Pt/CeO2 hollow ball-C used in direct methanol fuel cell

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specific Embodiment approach 1

[0023] Embodiment 1: This embodiment is used for the anode catalyst Pt / CeO of direct methanol fuel cell 2 The preparation method of hollow sphere-C is carried out according to the following steps:

[0024] 1. Preparation of CeO 2 Hollow ball:

[0025] 0.1-0.5g Ce(NO 3 ) 3 ·6H 2 Dissolve O in 10mL distilled water, stir at room temperature for 30min, then add 30mL polyethylene glycol-400, stir at room temperature for 30min, then transfer the solution into a reaction kettle, react at a constant temperature of 150-220°C for 12-48h, cool to room temperature, Wash three times with deionized water, then wash three times with absolute ethanol, dry at 80-100°C for 5-12h to obtain a milky white precipitate, roast the milky white precipitate in a tube furnace at 300-500°C for 1-5h, cool to room temperature, CeO 2 hollow ball;

[0026] 2. Preparation of Pt / CeO 2 Hollow ball-C catalyst:

[0027] 0.01-0.015g CeO 2 Hollow spheres and 0.035-0.04g Vulcan XC-72 carbon are dissolved in...

specific Embodiment approach 2

[0029] Specific embodiment two: the difference between this embodiment and specific embodiment one is that 0.4g Ce(NO 3 ) 3 ·6H 2 O was dissolved in 10 mL of distilled water. Others are the same as in the first embodiment.

specific Embodiment approach 3

[0030] Embodiment 3: The difference between this embodiment and Embodiment 1 or 2 is that in step 1, the reaction is carried out at a constant temperature of 200° C. for 24 hours. Others are different from the first or second specific embodiment.

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Abstract

The invention discloses a preparation method of an anode catalyst Pt/CeO2 hollow ball-C used in direct methanol fuel cell, and relates to a preparation method of an anode catalyst. The invention is provides for solving technical problems of low activity and poor stability of an existing DMFC anode commercial Pt/C catalyst. The method comprises the steps that: CeO2 hollow balls are prepared; the CeO2 hollow balls and Vulcan XC-72 carbon are dissolved in a mixed solution of ethylene glycol and isopropanol; ultrasonic processing and stirring are carried out; a H2PtCl6 solution is added, and the mixture is stirred; pH value is regulated with an ethylene glycol solution of NaOH; a reaction is carried out in a microwave reactor; the product is cooled to room temperature; the product is washed by using deionized water, until no Cl<-> exists in a filtrate; the product is washed three times by using absolute ethanol; and drying is carried out, such that the catalyst is obtained. The method provided by the invention is simple and easy to operate. The method is suitable for large-scale industrialized productions. The obtained catalyst has good catalytic activity and stability upon methanol. The invention belongs to the field of catalyst preparation.

Description

technical field [0001] The invention relates to a preparation method of an anode catalyst. Background technique [0002] Fuel cell (Fuel Cell, FC) is a very promising new energy utilization technology. It has many advantages such as high energy conversion efficiency, low pollution emission, environmental friendliness, and easy operation, and has been increasingly valued by governments. Direct methanol fuel cell (Direct Methanol Fuel Cell, DMFC) is a research hotspot of fuel cell technology today. DMFC directly uses methanol as fuel without intermediate reforming and conversion devices, and is easy to store and transport; under the same power density, DMFC is small in size and low in cost. Compared with other fuel cells, DMFC is most likely to be commercialized first, and can It is said that DMFC, as an ideal power source, has a broader application prospect. At present, DMFC has been applied in electronic products such as mobile phones, MP3, digital cameras, game consoles, ...

Claims

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Application Information

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IPC IPC(8): H01M4/92B01J23/63
CPCY02E60/50
Inventor 刘春涛谷宇李亚北王阔刘福强
Owner HEILONGJIANG UNIV