Optimization of PtIr electrocatalyst for PEMURFC
- International Journal of Hydrogen Energy, 30(12), p.1345-1350, 2005 .
For the fabrication of high-efficient bifunctional electrocatalyst of oxygen electrode, several electrocatalysts were prepared and tested on the URFC performance including both fuel cell and water electrolysis in a single cell URFC system. The catalysts revealed fuel cell performance in the order of Pt black>PtIr>PtRuOx>PtRu กซ PtRuIr>PtIrOx and water electrolysis performance in the order of PtIr กซ PtIrOx>PtRu>PtRuIr>PtRuOx กซ Pt black. Considering both results PtIr showed the best URFC performance. With increasing Ir or IrOx composition from 0 to 50 wt