Method of preparing alloy catalyst for fuel cells and alloy catalyst for fuel cells prepared by the same
AssigneeKorea Institute of Energy Research
InventorsHee-yeon Kim, Seok-yong Hong
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Abstract
Disclosed herein is a method of preparing an alloy catalyst for fuel cells, which is suitable for mass production and can reduce manufacturing costs. The method includes vaporizing at least two catalyst precursors in separate vaporizers; supplying the at least two vaporized catalyst precursors to a reactor while preventing contact therebetween; and synthesizing an alloy catalyst in the reactor. The method can prepare an alloy catalyst through a one-step process unlike typical multi-step methods for preparing catalysts, and can prepare an alloy catalyst at a much lower temperature than the typical methods for preparing alloys, thereby enabling mass production and cost reduction.
Claims8
A method of preparing an alloy catalyst for fuel cells, comprising:
- vaporizing at least two catalyst precursors in separate vaporizers wherein each of the separate vaporizers is placed in an oven which is maintained at a vaporization temperature of the respective catalyst precursor of the at least two catalyst precursors;
- supplying the at least two vaporized catalyst precursors to a reactor through separate transfer lines while preventing contact therebetween, wherein the transfer lines are maintained in a vaporization temperature range of each of the catalyst precursors by line heaters;
- and
- synthesizing an alloy catalyst within the reactor wherein the at least two vaporized precursors react with each other to form the alloy catalyst within the reactor,
- wherein the at least two precursors are a platinum (Pt) catalyst precursor and at least one co-catalyst precursor.
Dependencies are inferred from the claim text.