Several tungsten bronzes were investigated for use in solid oxide fuel cell (SOFC) anodes. Composite anodes were prepared by infiltration of the precursor salts into a porous yttria-stabilized zirconia (YSZ) scaffold to produce 40-wt% composites with bronze compositions of Na(0.8)Nb(y)W(1-y)O(3-delta) (y = 0, 0.3, 0.7, and 1), K(0.5)WO(3-delta), Cs(0.2)WO(3-delta), and Rb(0.2)WO(3-delta). XRD data showed that the bronze structures were formed following reduction in humidified H(2) at 873 K but that the bronzes were partially reduced to metallic W above 1073 K. Composite conductivities as high as 130 S/cm were observed at 973 K for the Na(0.8)WO(3-delta)-YSZ composite but substitution of Nb significantly decreased the conductivity without increasing the temperature at which tungsten was reduced. The impedance of Na(0.8)WO(3-delta)-YSZ anodes in humidified H(2) at 973 K was greater than 1.0 Omega cm(2) but this decreased to approximately 0.3 Omega cm(2) upon the addition of 1-wt% Pd for catalytic purposes. The possible use of anodes based on tungsten bronzes is discussed. Copyright (C) 2011, Hydrogen Energy Publications, LLC. Published by Elsevier Ltd. All rights reserved.