PtRu–WO[sub 3] nanostructured alloy electrode for use in thin-film fuel cells

Park, Kyung-Won; Ahn, Kwang-Soon; Choi, Jong-Ho; Nah, Yoon-Chae; Sung, Yung-Eun
February 2003
Applied Physics Letters;2/17/2003, Vol. 82 Issue 7, p1090
Academic Journal
A PtRu-WO[sub 3] nanostructured alloy electrode consisting of alloy nanophases and amorphous tungsten oxide for use in thin-film fuel cells was designed and fabricated using a multigun sputtering system with Pt and Ru metal and a tungsten oxide target. Alloy formation and the presence of nanophases in an amorphous tungsten oxide phase was confirmed by x-ray diffraction and transmission electron microscopy, respectively. The nanostructured alloy electrode, PtRu-W[sub 3] showed the best performance in methanol electro-oxidation because of the presence of the alloy nanophases when compared to a Pt and PtRu thin-film electrode.


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