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Use of polymerized phthalocyanine compound as cell cathode catalyst with direct alcohols as fuel

A technology of compound and phthalocyanine, which is applied in the application field of polymerizing phthalocyanine compound as the cathode catalyst of direct alcohol fuel cell, which can solve the problems of phthalocyanine ring damage, low catalyst activity and insufficient stability, etc. The effect of insufficient resources and low cost

Inactive Publication Date: 2005-07-06
SHANDONG UNIV OF TECH
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

However, the phthalocyanine catalysts reported in the existing literature are all complexes with relatively simple structures. When the catalyst is activated above 800°C, the phthalocyanine ring has been basically destroyed, and the active center of the catalyst is the atomic cluster formed by C, N and metal. The compound [Weng L T.Bertrand P, Lalande G, et al.ApplSurface Sci, 1995, 84:9-21] has disadvantages such as low catalyst activity and insufficient stability

Method used

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  • Use of polymerized phthalocyanine compound as cell cathode catalyst with direct alcohols as fuel
  • Use of polymerized phthalocyanine compound as cell cathode catalyst with direct alcohols as fuel
  • Use of polymerized phthalocyanine compound as cell cathode catalyst with direct alcohols as fuel

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0037] Example 1 n=0; X=N, R=-O 2 ; M=Fe Synthesis of six (4-nitro) bicyclic phthalocyanine iron (II) [HNODPcFe (II)]

[0038] Add 150mL of refined kerosene, 15.6g of 4-nitrophthalimide, 16g of urea and 2.95g of pyromellitic anhydride into a three-necked flask equipped with a stirrer, a reflux condenser and a thermometer, and heat to 140°C , Stir for 1 hour until the mixture is uniform, and keep at 180°C for 4 hours. After cooling to about 80°C, add 16g of urea, 0.4g of ammonium molybdate and 10.6g of ferrous ammonium sulfate, and stir for 0.5h. The reaction was stirred at 180°C for 3h. Cool to 80°C and add 5g of urea, stir and react at 180-220°C for 3h. Obtained black pellets. Suction was crude product.

[0039] The purification of the sample adopts the method of dissolving in concentrated sulfuric acid and diluting with water, the yield is 53.8%

[0040] Its NMR data are: 6.95~7.20 (multiple peaks), 8.07~8.10 (double peaks), 8.45~8.62 (triplet peaks), 8.94 (single peak...

Embodiment 2

[0042] In Example 1, the complex hexa(4-nitro)bicyclic phthalocyanine cobalt(II) [HNODPcCo(II)] in which the central metal ion is a cobalt ion can be obtained by using cobalt chloride instead of ferrous ammonium sulfate.

[0043] If other salts are used instead of ferrous ammonium sulfate, complexes of different metal ions can be obtained.

Embodiment 3

[0045] In Example 1, if the molar ratio of 4-nitrophthalimide and pyromellitic anhydride is controlled to be 4:1, a polymeric phthalocyanine complex with n=1 can be prepared. The molar ratio is 10:3, and the polymerized phthalocyanine complex with n=2 can be obtained.

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Abstract

Polymerized phthalocyanine compound with following general formulas can be used as cell cathode catalyst with direct alcohols as fuel. Polymerized phthalocyanine compound has more atoms which can form big ªð bonds, high catalytic activity and high selectivity, and large probability of 4e reduction by catalyzing oxygen for releasing oxygen completely. The compound belongs to non-platinums and alcohol-resistant catalyst.

Description

technical field [0001] The invention belongs to the application of polymerized phthalocyanine compound, especially as catalyst for direct alcohol fuel cell. Background technique [0002] Direct alcohol fuel cell (DAFC) is a kind of low-temperature fuel cell. In addition to the advantages of low-temperature fuel cell, as a new fuel cell of proton exchange membrane fuel cell, direct alcohol fuel cell also has fuel supply, supplementary It is convenient, does not require fuel reforming, and has a simple system structure, and is especially suitable as a mobile power source and a micro and small power source. It has very broad application prospects and market potential. [0003] Research on fuel cell catalysts has always been a topic of great interest to catalysis experts and fuel cell workers, and has become a research hotspot. Fuel cell catalysts usually use precious metal platinum and its alloys [Ye S Y, Vijh A K, Dao L H, J.Electrochem.Soc., 199...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C07D403/14H01M8/08H01M8/083
CPCY02E60/50
Inventor 李忠芳姚福生王素文于如军王捷
Owner SHANDONG UNIV OF TECH
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