A platinum alloy catalyst PtXY, wherein X is a transition metal (other than platinum, palladium or iridium) and Y is a transition metal (other than platinum, palladium or iridium) which is less leachable than X in an acidic environment, has an atomic percentage in the alloy of platinum is from 20.5-
A platinum alloy catalyst PtXY, wherein X is a transition metal (other than platinum, palladium or iridium) and Y is a transition metal (other than platinum, palladium or iridium) which is less leachable than X in an acidic environment, has an atomic percentage in the alloy of platinum is from 20.5-40at %, of X is from 40.5-78.5at % X and of Y is from 1-19.5at %.
대표청구항▼
1. A catalyst material, comprising a platinum alloy XPtY, wherein X is nickel, cobalt, chromium, copper, titanium or manganese and Y is tantalum or niobium, and wherein in the alloy the atomic percentage of platinum is from 20.5-30 at %, of X is from 40.5-78.5 at %, and of Y is from 1-19.5 at %,and
1. A catalyst material, comprising a platinum alloy XPtY, wherein X is nickel, cobalt, chromium, copper, titanium or manganese and Y is tantalum or niobium, and wherein in the alloy the atomic percentage of platinum is from 20.5-30 at %, of X is from 40.5-78.5 at %, and of Y is from 1-19.5 at %,and wherein the catalyst material is supported on a conductive support material and configured for use in an electrochemical cell. 2. The catalyst material according to claim 1, wherein in the alloy the atomic percentage of platinum is from 24-30 at %. 3. The catalyst material according to claim 1, wherein in the alloy the atomic percentage of platinum is from 24-30 at %, of X is from 55-72 at % X, and Y is from 3-16 at %. 4. The catalyst material according to claim 1, wherein the platinum alloy is CoPtTa. 5. The catalyst material according to claim 1, wherein the material consists essentially of the platinum alloy XPtY, wherein X is cobalt, chromium, copper, titanium or manganese, and the atomic percentage of platinum is from 24-30 at %, of X is from 55-72 at % X, and of Y is from 3-16 at %. 6. An electrode comprising the catalyst material according to claim 1. 7. The electrode according to claim 6, wherein the electrode is a cathode. 8. A decal transfer substrate comprising the catalyst material according to claim 1. 9. A catalyst coated membrane comprising the catalyst material according to claim 1. 10. A phosphoric acid fuel cell comprising the catalyst material according to claim 1. 11. A proton exchange membrane fuel cell comprising the catalyst material according to claim 1.
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이 특허에 인용된 특허 (9)
Hashimoto Koji (25-5 ; Shogen 2-Chome Izumi-ku ; Sendai-shi ; Miyagi-ken JPX) Teruuchi Kiyohiro (Sendai JPX) Habazaki Hiroki (Sendai JPX) Kawashima Asahi (Sendai JPX) Asami Katsuhiko (Sendai JPX), Amorphous alloy catalysts for conversion of exhaust gases to harmless gases.
Goller Glen J. (West Springfield MA) Petraglia Vincent J. (Vernon CT) Salonia Joseph R. (Middletown CT), Dry mix method for making an electrochemical cell electrode.
Tenhover Michael A. (Solon OH) Henderson Richard S. (Solon OH) Harris Jonathan H. (Shaker Heights OH) Grasselli Robert K. (Aurora OH) Ward Michael D. (Newark DE), Electrolysis of halide-containing solutions with amorphous metal alloys.
Hashimoto Koji (25-5 ; Shogen 2-chome Sendai-shi ; Miyagi JPX) Kanda Toshihisa (Sendai JPX) Kawashima Asahi (Sendai JPX) Asami Katsuhiko (Sendai JPX), Highly active catalyst and highly active electrode made of this catalyst.
Goller Glen J. (West Springfield MA) Petraglia Vincent J. (Vernon CT) Dews George (Glastonbury CT), Screen printing method for making an electrochemical cell electrode.
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