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Preparation method of Pt-Ag/porous polyaniline electrode material

A technology of electrodes and composite materials, which is applied in the field of preparation of Pt-Ag/porous polyaniline electrode materials, can solve the problems of high price, limited resources of Pt catalytic materials, hindering commercial application, etc., and achieve good stability and high catalytic activity , the effect of high charge density

Inactive Publication Date: 2018-07-31
CHANGZHOU UNIV
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

However, the resources of Pt catalytic materials are limited and expensive, which greatly hinders its commercial application.

Method used

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  • Preparation method of Pt-Ag/porous polyaniline electrode material
  • Preparation method of Pt-Ag/porous polyaniline electrode material

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0019] (1) Dissolve 1.0 g of aniline (An) and 0.5 g of sodium dodecylbenzenesulfonate (SDBS) in 31 mL of 0.5 M sulfuric acid solution (labeled solution A), where sulfuric acid is used as a protonic acid dopant. Add a certain amount of ATP to solution A to obtain a mixed solution, then add 2.84g of ammonium persulfate to dissolve in 31mL of 0.5M sulfuric acid (labeled solution B), slowly add the resulting solution B to the mixed solution, and stir Next, add aniline dropwise (one drop every 3 seconds) using a dropping funnel. Thereafter, the mixed liquid was kept at 0° C., stirred continuously for 8 hours and then left to stand overnight. The resulting mixture was filtered and washed with distilled water and ethanol until the filtrate was colorless, then dried at 60° C. for 24 hours, and ground to obtain PANI / ATP homogeneous powder. Finally, 0.8 g PANI / ATP was added into the HF acid solution and stirred continuously for 11 h to remove the ATP template, and finally filtered, was...

Embodiment 2

[0024] Disperse the carrier prepared in step 1 in deionized water and stir for about 30 minutes. The effect of deposition sequence on the catalytic effect of glycerol was investigated by stepwise deposition, and the cyclic voltammetry curve of the product was detected. In 0.5M glycerol + 0.5M H 2 SO 4 In solution, the scan rate is 0.1V s -1 , the scan parameters are set at -0.2V–1.0V, and a CV test is performed.

Embodiment 3

[0026] Disperse the carrier prepared in step 1 in deionized water and stir for about 30 minutes. The CV method is used to deposit Pt and Ag on the surface of the electrode. The number of circles set during the deposition is different, and the catalytic effect obtained is also different.

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Abstract

The invention belongs to the field of a fuel cell, and particularly relates to a preparation method of a Pt-Ag / porous polyaniline electrode material. Specific to the shortcomings of limited resourcesand high cost of a Pt catalytic material, the invention provides the preparation method of Pt-Ag / porous polyaniline. Porous polyaniline is prepared by adopting a chemical method, and then a Pt-Ag / porous polyaniline nanocomposite is prepared by adopting an electro-deposition method; electrocatalytic oxidation effects of Pt / porous polyaniline composite electrodes modified by different metals of Fe,Mn and Sn on glycerinum are compared synchronously, and it is determined that the Pt-Ag / porous polyaniline material has the best electrocatalytic oxidation effect on glycerinum; then influence of Pt,and Ag deposition sequences and deposition number of turns on electrocatalytic oxidation of glycerinum are further compared; and it is determined that the best electrode performance of the Pt-Ag / porous polyaniline can be achieved by deposition of Pt first and then deposition of At later at the deposition number of turns of 300. Therefore, the composite fuel has the potential application prospect on the aspect of the fuel cell.

Description

technical field [0001] The invention belongs to the field of fuel cells, in particular to a method for preparing a Pt-Ag / porous polyaniline electrode material. Background technique [0002] In recent years, due to reasons such as environmental pollution and energy depletion, the search for new energy sources has become the primary concern of people. As a highly efficient and clean energy technology, fuel cells have promising application prospects. Because direct alcohol fuel cells use liquid alcohols, they have many advantages, such as safety, easy storage and transportation, and low fuel prices, eliminating the cumbersome process of hydrogen reforming. At the same time, because it can directly convert chemical energy into electrical energy without additional charging, as long as the fuel is sufficient, it can continuously generate electrical energy, so fuel cells have very attractive development prospects. [0003] For the use of direct alcohol fuel cells, methanol fuel i...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): H01M4/92H01M4/88H01M4/86H01G11/86H01G11/48H01G11/24
CPCH01G11/24H01G11/48H01G11/86H01M4/8605H01M4/88H01M4/92Y02E60/50
Inventor 谢爱娟杜佳雯罗士平陈培伍潘菲朱仕超王璐陈苏洁
Owner CHANGZHOU UNIV
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