CPC B01J 23/8906 (2013.01) [B01J 35/19 (2024.01); B01J 35/31 (2024.01); B01J 37/0215 (2013.01); C25D 11/26 (2013.01)] | 10 Claims |
1. A method of improving a corrosion resistance of a metal substrate surface using an oxygen reduction catalyst, the method comprising an oxygen reduction catalyst coating step of coating the metal substrate surface with the oxygen reduction catalyst,
wherein the metal substrate surface is an alloy comprising at least one selected from the group consisting of chromium (Cr), stainless steel, high-entropy alloy and aluminum (Al),
wherein the oxygen reduction catalyst coating step comprises forming a coating layer by sputtering a noble metal, selected as the oxygen reduction catalyst, on the metal substrate surface under an argon atmosphere, and
wherein the coating layer has a thickness of 0.8 nm or more.
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