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A kind of preparation method of direct methanol fuel cell anode catalyst

A methanol fuel cell and catalyst technology, applied in battery electrodes, chemical instruments and methods, physical/chemical process catalysts, etc., can solve the problems of high cost and difficult application of fuel cells, and achieve the promotion of electron transfer, high economic value, The effect of optimal electrocatalytic activity

Active Publication Date: 2017-05-17
SHANGHAI UNIVERSITY OF ELECTRIC POWER
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

One of the most important reasons is that due to the use of Pt as a catalyst material, the cost of fuel cells is relatively high, which makes it difficult to be widely used.

Method used

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  • A kind of preparation method of direct methanol fuel cell anode catalyst
  • A kind of preparation method of direct methanol fuel cell anode catalyst
  • A kind of preparation method of direct methanol fuel cell anode catalyst

Examples

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Embodiment 1

[0025] A method for preparing a direct methanol fuel cell anode catalyst carrier material, the direct methanol fuel cell anode catalyst carrier material Pd@PGMA-ed contains Pd, C, N, H and O elements.

[0026] The above-mentioned preparation method of the anode catalyst carrier material of the direct methanol fuel cell specifically comprises the following steps:

[0027] (1) Preparation of spherical carrier polymer PGMA

[0028] Add 10g of polymer monomer GMA to 10g of stabilizer PVP or EDTA, AIBN, react for 6-18 hours under nitrogen at 20-140°C, and obtain polymer PGMA after several times of centrifugal cleaning.

[0029] (2) Spherical carrier polymer PGMA epoxy ring opening

[0030] The polymer PGMA is added with 40ml of ethylenediamine and reacted at 20-140°C for 6-18 hours to obtain PGMA-ed.

[0031] (3) Spherical carrier polymer PGMA-ed loaded metal palladium

[0032] 40 mg of PGMA-ed was dissolved in deionized water, ultrasonicated for 30 minutes, 0.1 g of stabilizer ...

Embodiment 2

[0040] A method for preparing a direct methanol fuel cell anode catalyst carrier material, the direct methanol fuel cell anode catalyst carrier material Pd@PGMA-ed contains Pt, C, N, H and O elements.

[0041] (1) Preparation of spherical carrier polymer PGMA

[0042] 10g of polymer monomer GMA was added with 20g of stabilizer PVP, AIBN, reacted at 50°C under nitrogen for 8 hours, and the polymer PGMA was obtained after several times of centrifugal cleaning.

[0043] (2) Spherical carrier polymer PGMA epoxy ring opening

[0044] Add 20ml of ethylenediamine to polymer PGMA and react at 50°C for 15 hours to obtain PGMA-ed.

[0045] (3) Spherical carrier polymer PGMA-ed loaded metal palladium

[0046] 40mg of PGMA-ed was dissolved in deionized water, ultrasonicated for half an hour, no stabilizer was added, and K 2 PtCl 6 , continue to stir, adjust, and then slowly add 0.2g reducing agent KBH with a peristaltic pump 4 , kept stirring, and vacuum dried at 80°C for 15 hours to...

Embodiment 3

[0048] A method for preparing a direct methanol fuel cell anode catalyst support material, wherein the direct methanol fuel cell anode catalyst support material contains Pd, C, N, H and O elements, and its molecular formula is Pd@PGMA-ed.

[0049] (1) Preparation of spherical carrier polymer PGMA

[0050] The polymer monomer GMA was added with 10g of stabilizers PVP and AIBN, reacted for 14 hours under nitrogen, and the polymer PGMA was obtained after several times of centrifugal cleaning.

[0051] (2) Spherical carrier polymer PGMA epoxy ring opening

[0052] Polymer PGMA was added with 20ml of ethylenediamine and reacted at 40°C for 6 hours to obtain PGMA-ed.

[0053] (3) Spherical carrier polymer PGMA-ed loaded metal palladium

[0054] 40mg of PGMA-ed was dissolved in deionized water, sonicated for one hour, and the stabilizer hexadecyltrimethylammonium bromide was added, and the added K 2 PdCl 4 , keep stirring, adjust the pH=14, keep stirring, then slowly add sodium c...

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Abstract

The invention relates to a preparation method for a direct methanol fuel cell anode catalyst. The preparation method comprises the following steps of: adding a certain amount of a stabilizer into polymer monomers GMA, reacting and carrying out multiple times of centrifugal cleaning to obtain a polymer PGMA; 2, adding a certain amount of ethidene diamine into the polymer PGMA and reacting again to obtain PGMA-ed; and 3, dissolving a certain amount of PGMA-ed in deionized water, carrying out ultrasound treatment for a certain time, adding the stabilizer and a certain amount of K2PdCl4, stirring the mixture, adjusting the pH, adding a reducing agent, continuously stirring, and carrying out vacuum drying to obtain a direct methanol fuel cell anode catalyst material. The direct methanol fuel cell anode catalyst material has high electrochemical performance, and carriers are shaped like spheres in the morphological characteristics and uniformly distributed.

Description

technical field [0001] The invention belongs to the field of fuel cell anode catalyst material preparation, and in particular relates to a preparation method of a direct methanol fuel cell anode catalyst. Background technique [0002] In today's era, with the continuous development of society, the demand for energy is increasing, and the global fossil resources are decreasing. Therefore, the development of alternative and green energy has become an urgent research topic. As an efficient, clean and environmentally friendly new power generation technology, fuel cells can directly convert the chemical energy stored in fuel into electrical energy in an electrochemical way, and are known as one of the new energy power generation technologies in the 21st century. Direct methanol fuel cell is a fuel cell that uses renewable methanol as fuel, air as oxidant, and ion exchange membrane as electrolyte. Compared with fuel cells using hydrogen as fuel, DMFC is easier to transport and st...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): H01M4/92B01J23/44
CPCB01J23/44H01M4/925Y02E60/50
Inventor 徐群杰刘其范金辰
Owner SHANGHAI UNIVERSITY OF ELECTRIC POWER
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