Preparation of PtRu catalysts Using Galvanostatic Pulse Electrodeposition on Nafion(Na+) bonded Carbon Layer for PEMFC

전기 환원법을 이용한 고분자 전해질 연료전지용 PtRu 전극제조

PEM(proton exchange membrane) fuel cell have been receiving considerable interest as power source because of high-energy efficiency. However by using reforming hydrogen gas, CO poisoning occur in anode. To improve CO tolerance PtRu catalysts were prepared by galvanostatic pulse electrodeposition. The composition(atomic ratio) of catalysts are controllable by using different concentrations of PtRu solutions. Also, the particle sizes of PtRu on carbon are similar to about $3.5{\sim}4nm$ regardless of concentration.