초록 ▼

Fuel cell performance in liquid feed fuel cells with an electrode comprising a carbonaceous substrate and an electrocatalyst can be increased by oxidizing the carbon substrate, particularly by electrochemical methods in acidic aqueous solution, prior to incorporation of the electrocatalyst. The trea

Fuel cell performance in liquid feed fuel cells with an electrode comprising a carbonaceous substrate and an electrocatalyst can be increased by oxidizing the carbon substrate, particularly by electrochemical methods in acidic aqueous solution, prior to incorporation of the electrocatalyst. The treated substrate may thereafter be advantageously impregnated with a proton conducting ionomer to prevent excessive penetration of the applied catalyst into the substrate. The treatment method is particularly effective for direct methanol fuel cell anodes.

대표청구항 ▼

[ What is claimed is:] [1.] A method of improving fuel cell performance in a liquid feed solid polymer electrolyte fuel cell comprising at least one electrode, said electrode comprising a carbonaceous substrate and an electrocatalyst, said method comprising oxidizing said carbonaceous substrate prio

[ What is claimed is:] [1.] A method of improving fuel cell performance in a liquid feed solid polymer electrolyte fuel cell comprising at least one electrode, said electrode comprising a carbonaceous substrate and an electrocatalyst, said method comprising oxidizing said carbonaceous substrate prior to incorporation of said electrocatalyst into said electrode.