Metal catalyst composition modified by nitrogen-containing compound

Abstract

The present invention relates to a metal catalyst composition modified by a nitrogen-containing compound, which effectively reduces cathode catalyst poisoning. The catalyst composition applied on the anode also lowers the over-potential. The catalyst coupled with the nitrogen-containing compound has increased three-dimensional hindrance, which improves the distribution of the catalyst particles and improves the reaction activity.

Description

technical field [0001] The invention relates to a catalyst and a membrane electrode group, in particular to a metal catalyst and a membrane electrode group applied to a fuel cell. Background technique [0002] Due to the demand for clean energy, fuel cells have been mass-produced and used in different fields such as industry, housing, and transportation. Direct methanol fuel cell (Direct methanol fuel cell; DMFC), also known as micro fuel cell. Direct Methanol Fuel Cells convert methanol gas into electricity, providing portable power that enables laptops or other handheld electronic devices to last longer. [0003] Generally speaking, in a direct methanol fuel cell device, if methanol penetrates into the cathode, it will cause the poisoning of the cathode catalyst. At the same time, the direct methanol fuel cell has the problem of anode over-potential, which leads to a decrease in discharge voltage and a decline in activity, especially It is more significant when using hig...

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Problems solved by technology

[0003] Generally speaking, in a direct methanol fuel cell device, if methanol penetrates into the cathode, it will cause the poisoning of the cathode catalyst. At the same time, the direct methanol fuel cell has the problem of anode over-potential, which leads to a decrease in discharge voltage and a decline in activity, especially is more significant when using high concentrations of methanol as fuel

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