Sr- and Mn-doped lanthanum gallate powders (LSGMn, La0.9Sr0.1Ga1-xMnxO3-delta, x=0.20, 0.35, 0.43) were prepared by glycine-nitrate combustion synthesis. X-ray diffraction patterns indicate the perovskite structure was formed without any second phase after calcining the powders at 1000degreesC for 4 h. Compacts of powders synthesized under stoichiometric combustion were sintered to densities over 95% of theoretical values. The electrical conductivity of this material in both air and H-2 were characterized using AC impedance spectroscopy. It showed that the conductivity in H-2 atmosphere is lower than that in air due to p-type electrical conduction in this material, and the electrical conductivity increases remarkably with increasing manganese content. Good chemical stability of La0.9Sr0.1Ga1- xMnxO3-delta in H-2 atmosphere as well as the relatively high conductivity makes it an appropriate anode material for Sr- and Mg-doped lanthanum gallate (LSGM)-based IT-SOFCs. Preliminary fuel cell performance measurements were performed, showing promising electrochemical properties of such anode materials. (C) 2003 Kluwer Academic Publishers.