Electrode, method for producing same, water electrolyzer, and fuel cell
AssigneeUniversity of Tsukuba
InventorYoshikazu ITO
Life of this patent
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Abstract
An electrode 10 includes, as a catalyst, an alloy including three or more base metal elements, in which the three or more base metal elements are nearly equal in atomic composition proportion, and form a solid solution. Also, an electrode 12 includes: a carbon fiber; and a catalyst including a base metal, at least a part of elements of the catalyst being chemically bonded to the carbon fiber. Further, the water electrolyzer includes an anode, a cathode, and a solid polymer electrolyte membrane provided between the anode and the cathode. The anode is the electrode 10, and/or the cathode is the electrode 12.
Claims20
An electrode comprising, as a catalyst for an oxygen evolution reaction, for a hydrogen evolution reaction, or for a hydrogen oxidation reaction, an alloy including three or more base metal elements selected from Fe, Cu, Ni, Al, Pb, Zn, Sn, W, Mo, Ta, Mg, Co, Bi, Cd, Ti, Zr, Sb, Mn, Be, Cr, Ge, V, Ga, Hf, In, Nb, Re, and Tl, wherein the three or more elements contain at least Zr, and the three or more base metal elements are nearly equal in atomic composition proportion and form a solid solution.
An electrode comprising:
- a carbon fiber;
- and
- a catalyst including a base metal, at least a part of elements of the catalyst being chemically bonded to the carbon fiber.
A method for producing an electrode, the method comprising:
- attaching an oxide of a base metal onto a surface of a carbon fiber;
- and
- forming a catalyst chemically bonded to the carbon fiber and including a base metal by thermally treating the carbon fiber in a reducing gas atmosphere.
Dependencies are inferred from the claim text.