Method for preparing ternary alloy catalyst with polydopamine coating and ternary alloy catalyst prepared thereby
AssigneeUIF (University Industry Foundation), Yonsei University
InventorsHan Sung Kim, Ho Jin Lee
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Abstract
Disclosed is a method for preparing a ternary alloy catalyst with polydopamine coating and a ternary alloy catalyst prepared thereby. The method for preparing a ternary alloy catalyst according to the present disclosure may provide a ternary alloy catalyst with increased resistance to carbon monoxide (CO) poisoning in which polydopamine is utilized as a coating material for a ternary alloy catalyst having a core-shell structure containing platinum to suppress the growth of particles during subsequent high-temperature heat treatment, and nickel (Ni), which is a transition metal, is diffused inside to form a core, thereby effectively preventing elution of nickel under an acidic condition.
Claims9
A method for preparing a ternary alloy catalyst using polydopamine coating, the method comprising:
- supporting a PtRu catalyst on crystalline carbon (C);
- coating a surface of the supported PtRu catalyst with polydopamine (PDA);
- preparing a PtRuNi catalyst supported on carbon by supporting Ni on the coated PtRu catalyst supported on carbon;
- and
- performing heat treatment on the PtRuNi catalyst in a mixed gas atmosphere of hydrogen and inert gas,
- wherein in the mixed gas atmosphere of the hydrogen and the inert gas, the hydrogen and the inert gas are mixed with each other in a volume ratio of 10:30 to 50.
Dependencies are inferred from the claim text.