The Pt-Pd and Pd-Ag nanostructured bimetallic films on porous alpha-Al2O3 substrates are successfully synthesized by chemical deposition using lyotropic liquid crystalline templating strategy. The coreduction of two metallic species in the presence of liquid crystalline phase by hydrazine hydrate produces hexagonal nanostructured Pt-Pd and lamellar nanostructured Pd-Ag films. Low-angle X-ray diffraction (XRD) and transmission electron microscopy (TEM) studies show the ordered nanostructure of both Pt-Pd and Pd-Ag films. The energy dispersive X-ray (EDX) and wide-angle XRD analyses of the bimetallic films have verified the coexistence and uniform distribution of constituent metallic species. By taking into account of catalytic activities, well-defined nanochannels and higher surface areas, the nanostructured bimetallic films might have application potential in microreactors. (c) 2008 Elsevier B.V. All rights reserved.