A direct methanol fuel cell

A methanol fuel cell, direct technology, applied in fuel cells, battery electrodes, circuits, etc., can solve problems such as easy oxidation, affecting catalyst stability, battery performance, etc., to improve performance, improve anti-CO poisoning ability, and improve catalytic oxidation performance. Effect

Active Publication Date: 2019-09-17
义乌市谊诚信息科技有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

As reported the preparation of PtRuTiO X / C and Au / TiO 2 PtRu catalyst, TiO 2 Combination can reduce the amount of noble metal Pt in the catalyst, improve catalytic performance and anti-CO poisoning ability, but the amount of noble metal Pt in these catalysts is still high, and the catalyst is supported by C, which is easy to oxidize in the actual application process, affecting the catalyst. The stability and performance of the battery
Highly Conductive Porous Sponge Polymer Polyaniline-Poly(2-Acrylamide-2 Methylpropanesulfonic Acid) Coated RuNi / C@TiO 2 The synthesis of catalysts, its application and research in direct methanol fuel cells, without using an anode diffusion layer, and simplifying the battery structure have not yet been reported

Method used

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Experimental program
Comparison scheme
Effect test

Embodiment 1

[0038] The preparation method of above-mentioned anode catalyst comprises the following steps:

[0039] (1) Porous hollow nano-TiO 2prepared by the sol-gel method. Dissolve the calculated amount of butyl titanate in a certain amount of absolute ethanol, add a certain amount of surfactants PEG-600 and Vulcan XC-72, add a mixture of absolute ethanol, glacial acetic acid and deionized water dropwise under stirring, Continue to stir after hydrolyzing to form a sol, let it stand for 2-3 days after forming a gel, and vacuum-dry at 80°C for 8-10 hours. Hollow TiO 2 nanospheres. The consumption molar ratio of butyl titanate, dehydrated alcohol, glacial acetic acid, deionized water when preparing sol is: n 钛酸丁酯 :n 无水乙醇 :n 冰醋酸 :n 去离子水 =1:20~40:1~2.5:2~6. The dosage of PEG-600 is 1% of the total volume of butyl titanate, absolute ethanol, deionized water and glacial acetic acid. The amount of Vulcan XC-72 is to completely hydrolyze butyl titanate to finally generate TiO 2 30% o...

Embodiment 2

[0052] The amount of glucose in step (2) is 0.45g, and in step (6) according to the synthetic RuNi / C@TiO 2 Medium W RuNi = 2%, RuNi molar ratio n Ru :n Ni =1:1, 348mg aniline in step (12), 202.5mg o-phenylenediamine, 1.5525g 2-acrylamide-2 methylpropanesulfonic acid and 126mg p-acetanilide, 427.5mg ammonium persulfate dissolved in 2mol / L HCl , all the other are with embodiment 1.

Embodiment 3

[0054] The amount of glucose in step (2) is 1.8g, according to the synthetic RuNi / C@TiO 2 Medium W RuNi = 3%, molar ratio n Ru :n Ni =3:7, 116.3mg aniline in step (12), 67.5mg o-phenylenediamine, 517.5mg 2-acrylamide-2 methylpropanesulfonic acid and 42mg p-acetanilide, 142.5mg persulfuric acid dissolved in 2mol / L HCl Ammonium, all the other are with embodiment 1.

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Abstract

The invention relates to the field of fuel cells, in particular to a novel DMFC (direct methanol fuel cell). The battery comprises a cell casing, a membrane electrode and an anode tube from outside to inside sequentially, wherein an electrolyte chamber is formed in the anode tube, an air chamber is formed between the casing and the membrane electrode, and a cathode output end and an anode output end are arranged at the cathode end and the anode end of the cell and connected with the cell casing through weld points respectively; the membrane electrode covers the surface of the anode tube; a feeding hole is formed in the electrolyte chamber of the casing, an air circulation hole is formed in the air chamber of the casing, a water discharge hole is formed in the bottom of the air chamber of the casing, and a CO2 discharge hole is formed in the bottom of an anode diffusion layer of the casing. The manufacturing cost of the cell is reduced, the structure is simplified, the catalytic performance of the catalyst for methanol is high, toxin resistance is high, and the cell performance is improved.

Description

technical field [0001] The invention relates to the field of fuel cells, in particular to a direct methanol fuel cell. Background technique [0002] Direct Methanol Fuel Cell (DMFC) has the advantages of low energy consumption, high energy density, abundant sources of methanol, low price, simple system, convenient operation, low noise, etc. Promising chemical power sources have attracted widespread attention. One of the most critical materials of DMFC is the electrode catalyst, which directly affects the performance, stability, service life and manufacturing cost of the battery. The noble metal Pt has excellent catalytic performance at low temperature (less than 80°C). At present, Pt is the main component of DMFC electrode catalysts, and the PtRu catalyst has stronger CO poisoning resistance and higher catalytic activity than pure Pt. It is considered to be the best catalyst for DMFC at present, but due to its high price and defects such as easy solubility of Ru, the utili...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): H01M8/1011H01M4/90H01M4/88H01M4/86
CPCH01M4/8605H01M4/8657H01M4/8825H01M4/9008H01M4/9016H01M8/1011Y02E60/50Y02P70/50
Inventor 鞠剑峰吴锦明石玉军徐超杰鞠一逸包凯林吴松泉王哲余立玉
Owner 义乌市谊诚信息科技有限公司
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