초록 ▼

An anode for hydrogen oxidation in a fuel cell is formed from a host matrix including at least one transition element which is structurally modified by the incorporation of at least one modifier element to improve its catalytic properties. The catalytic body is based on a disordered non-equilibrium

An anode for hydrogen oxidation in a fuel cell is formed from a host matrix including at least one transition element which is structurally modified by the incorporation of at least one modifier element to improve its catalytic properties. The catalytic body is based on a disordered non-equilibrium material designed to have a high density of catalytically active sites, resistance to poisoning, and long operating life. Modifier elements, including Ti, Mo, Zr, Mg, V, Si or Al, structurally modify the local chemical environments of a nickel or other transition element host matrix to form the catalytic materials of the anode. The improved low overvoltage catalytic materials of the anode of the present invention increase the operating efficiencies of fuel cells employing such anodes. The catalytic materials can be deposited as a layer on the surface of porous electrode substrates to form a gas diffusion anode or can be formed as a gas diffusion electrode.

대표청구항 ▼

A fuel cell comprising: at least one anode means for efficient hydrogen oxidation, said anode means being formed from a compositionally disordered non-equilibrium multicomponent catalytic material, said anode means including a host matrix having at least one transition element and incorporating at l

A fuel cell comprising: at least one anode means for efficient hydrogen oxidation, said anode means being formed from a compositionally disordered non-equilibrium multicomponent catalytic material, said anode means including a host matrix having at least one transition element and incorporating at least one modifier element; a casing having said anode means positioned therein; at least one cathode capable of oxygen reduction positioned within said casing and spaced from said anode means; and an electrolyte in contact with both said cathode and said anode means.