Bimetallic Porous Material with Enhanced Catalytic Performance
발표자
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초록
내용
The porous material of bimetallic (NixPt1-x) alloy mesocrystals within carbon framework was prepared by an aerosol process to be used as high-performance catalysts. As-prepared porous NiPt alloy has a robust mesostructure of nanoparticles with tunable composition and carbon framework and exhibits a high thermal stability at various sintering conditions (time, temperature, and atmosphere). As a catalyst for propylene hydrogenation, NiPt alloy shows excellent catalytic activity and low activation energy through the control of elemental compositions and pore structures. As an electro-catalyst for oxygen reduction reaction, NiPt alloy shows superior catalytic activity to that of conventional Pt/C due to highly activated metal alloy nanoparticles and increased reactants accessibility to catalyst.