Institute of Materials Science and Engineering, National Central University, Taoyuan 320 (Taiwan), Fax: (+886)?3‐2805034
Abstract:
Bimetallic catalysts: The effect of PtRu alloying and the influence of RuO2 species on the methanol oxidation activity of PtRu/C catalysts is studied. Different heat treatments—utilizing either N2 or air—are applied to the bimetallic materials to enhance the degree of alloying or produce RuO2 (see picture). The catalysts with the best performance are characterized by a small particle size, a high degree of PtRu alloying, and the presence of a Pt‐related species on their surface.