Here we report the use of LaNi0.6Fe0.4O3-delta/carbon nanotube (LNF/CNT) hybrids as novel and robust anode catalysts that are in situ fabricated by exposure of nano-scale LNF perovskite oxide catalysts to slightly humidified methane. TEM observations confirm the formation of CNTs with the inner diameter and the wall thickness both at approximate to 15 nm. Combined XRD and EDX analyses show that LNF oxides decompose into a mixture of La2O3, FeNi3 alloy and LaFeO3, where FeNi3 alloy particles have an average diameter of 45 nm, largely exist outside of these CNTs and are surrounded by nano-scale La2O3 and LaFeO3 oxides. The LNF/CNT hybrids exhibit superior catalytic activities for methane oxidation reactions, yielding low anode polarization resistances of 0.22 Omega cm(2) at 800 degrees C and 0.44 0 cm(2) at 750 degrees C. Impregnated fuel cells with such hybrid anodes display stable and excellent power densities in methane fuels. e.g., 1.00 W cm(-2) at 800 degrees C and 0.73 W cm(-2) at 750 degrees C. (C) 2015 Elsevier B.V. All rights reserved.