Metal catalyst composition modified by nitrogen-containing compound

摘要

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.

主权项

1. A metal catalyst modified by a nitrogen-containing compound, wherein the nitrogen-containing compound is a nitrogen-containing 5-membered heterocyclic compound, wherein the nitrogen-containing compound is selected from the following group consisting of pyrrole and pyrrole derivatives (pyrroles), pyrroline and pyrroline derivatives (pyrrolines), imidazole and imidazole derivatives (imidazoles), imidazoline and imidazoline derivatives (imidazolines), and triazole and triazole derivatives (triazoles), wherein the nitrogen-containing compound has the structure of the following formula (I): wherein R1-R5 are individually hydrogen, alkyl, NH2 or NR6R7, R6 and R7 are individually alkyl, hydroxyl or alkoxyl, X1 is nitrogen, and X2, X3, X4 and X5 are individually carbon or nitrogen, and the nitrogen-containing compound is electro-neutral; or the nitrogen-containing compound has the structure of the following formula wherein S1-S7 are individually hydrogen, alkyl, NH2 or NS8S9, S8 and S9 are individually alkyl, hydroxyl or alkoxyl, Y1 is nitrogen and Y2, Y3, Y4 and Y5 are individually carbon or nitrogen, and the nitrogen-containing compound is electro-neutral.