AI Article Synopsis
- The study focuses on the synthesis of FePt/MgO nanoparticles (NPs) with controlled structures, particularly face-centered cubic (fcc) and face-centered tetragonal (fct) forms.
- The MgO coating on the NPs can be easily removed, allowing for catalytic testing in oxygen reduction reactions (ORR) using 0.5 M H(2)SO(4) solution.
- The fct-FePt NPs demonstrate superior catalytic activity and durability over the fcc-FePt NPs, suggesting that fully ordered fct-FePt can be an effective platinum-based catalyst for fuel cells.
Article Abstract
We report the structure-controlled synthesis of FePt/MgO NPs and their catalysis for oxygen reduction reaction (ORR) in 0.5 M H(2)SO(4) solution. The synthesis yields fcc-FePt/MgO and fct-FePt/MgO NPs with the MgO coating being readily removed for catalytic studies. The fct-FePt NPs show higher activity and durability than the fcc-FePt in the ORR condition. The results indicate that the fully ordered fct-FePt could serve as a practical Pt-based catalyst for fuel cell applications.
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