Preparation method of direct ethanol fuel cell catalyst with hollow structure

A technology of fuel cells and catalysts, applied in battery electrodes, structural parts, circuits, etc., can solve the problems of poor stability of Pt-Ni/C catalysts

Inactive Publication Date: 2015-11-18
SHANGHAI UNIVERSITY OF ELECTRIC POWER
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

[0005] The purpose of the present invention is to solve the problem of poor stability of the Pt-Ni / C catalyst, the preparation method is simple in process, low in cost, and has an obvious effect on improving the stability of the catalyst

Method used

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  • Preparation method of direct ethanol fuel cell catalyst with hollow structure
  • Preparation method of direct ethanol fuel cell catalyst with hollow structure
  • Preparation method of direct ethanol fuel cell catalyst with hollow structure

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Experimental program
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Embodiment 1

[0025] A method for preparing an anode Pt-Ni / C catalyst for a direct ethanol fuel cell, specifically comprising the following steps:

[0026] (1) 0.2718g trisodium citrate stabilizer is dissolved in 20ml deionized water to form a stable solution;

[0027] (2) 2ml, 0.02MH 2 PtCl 6 ·6H 2 O platinum precursor solution and 2.65ml, 0.05MNiC 4 H 6 O 4 ·4H 2 O nickel precursor solution is added to above-mentioned solution;

[0028] (3) The solution of (2) was magnetically stirred for 1 h and then added with the pre-treated carbon slurry, and the treatment method of the carbon slurry was: 0.0235 g of XC-72R was added to 10 ml of anhydrous ethanol solution and ultrasonicated for 30 min;

[0029] (4) 0.1 g of NaBH 4 The solution of the reducing agent added to 10 ml of deionized water was added dropwise to the solution of (3), the whole dropping process was carried out in an ice bath, and the magnetic stirring was carried out for 2h;

[0030] (5) The solution of (4) was suction-...

Embodiment 2

[0034] A method for preparing an anode Pt-Ni / C catalyst for a direct ethanol fuel cell, specifically comprising the following steps:

[0035] (1) 0.2718g trisodium citrate stabilizer is dissolved in 20ml deionized water to form a stable solution;

[0036] (2) 2ml, 0.02MH 2 PtCl 6 ·6H 2 O platinum precursor solution and 2.65ml, 0.05MNiC 4 H 6 O 4 ·4H 2 O nickel precursor solution is added to above-mentioned solution;

[0037] (3) The solution of (2) was magnetically stirred for 1 h and then added with the pre-treated carbon slurry, and the treatment method of the carbon slurry was: 0.0235 g of XC-72R was added to 10 ml of anhydrous ethanol solution and ultrasonicated for 30 min;

[0038] (4) 0.1 g of NaBH 4 The solution of the reducing agent added to 10 ml of deionized water was added dropwise to the solution of (3), the whole dropping process was carried out in an ice bath, and the magnetic stirring was carried out for 2h;

[0039] (5) The solution of (4) was suction-...

Embodiment 3

[0043] A method for preparing an anode Pt-Ni / C catalyst for a direct ethanol fuel cell, specifically comprising the following steps:

[0044] (1) 0.2718g trisodium citrate stabilizer is dissolved in 20ml deionized water to form a stable solution;

[0045] (2) 2ml, 0.02MH 2 PtCl 6 ·6H 2 O platinum precursor solution and 2.65ml, 0.05MNiC 4 H 6 O 4 ·4H 2 O nickel precursor solution is added to above-mentioned solution;

[0046] (3) The solution of (2) was magnetically stirred for 1 h and then added with the pre-treated carbon slurry, and the treatment method of the carbon slurry was: 0.0235 g of XC-72R was added to 10 ml of anhydrous ethanol solution and ultrasonicated for 30 min;

[0047] (4) 0.1 g of NaBH 4 The solution of the reducing agent added to 10 ml of deionized water was added dropwise to the solution of (3), the whole dropping process was carried out in an ice bath, and the magnetic stirring was carried out for 2h;

[0048] (5) The solution of (4) was suction-...

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Abstract

The invention relates to a preparation method of a direct ethanol fuel cell catalyst with a hollow structure. The method comprises the following steps: dissolving a stabilizer into deionized water to form a stable solution; adding the prepared platinum and nickel precursor solution to the solution; magnetically stirring the obtained solution for an hour, and then adding the treated carbon slurry; dropwise adding a reducing agent solution to the solution, and magnetically stirring the solutions for two hours; carrying out suction filtration on the obtained solution, controlling the drying temperature at 80 DEG C and drying the solution in vacuum for 6-10 hours; and finally carrying out dealloying treatment to obtain a catalyst. Compared with the prior art, the problem of poor stability of a Pt-Ni / C catalyst is solved; and the preparation method is simple in process, low in cost and obvious in effect of improving the stability of the catalyst.

Description

technical field [0001] The invention belongs to the technical field of anode catalysts for direct ethanol fuel cells, and in particular relates to a preparation method of a catalyst for direct ethanol fuel cells with a hollow structure. Background technique [0002] Fuel cell technology is a new type of green energy technology that converts chemical energy directly into electrical energy. It has irreplaceable advantages in solving the contradiction between economic development, energy shortage and environmental pollution. [0003] Direct ethanol fuel cell (DEFC) is a new type of high-efficiency fuel cell developed in recent years. Ethanol is widely available, low toxicity, environmentally friendly, and easy to store and transport, making it an ideal feedstock. Ethanol can be produced by fermentation of biological straw, and it is a real green energy material with immeasurable economic and social value. Although DEFC has many incomparable advantages above, the research of ...

Claims

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Application Information

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IPC IPC(8): H01M4/88H01M4/92B82Y30/00B82Y40/00
CPCB82Y30/00B82Y40/00H01M4/8825H01M4/921Y02E60/50
Inventor 徐群杰李巧霞范金辰周洋
Owner SHANGHAI UNIVERSITY OF ELECTRIC POWER
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