%0 Journal Article %A Fernandez, E. %A Coenen, K. %A Helmi, A. %A Melendez, J. %A Zuñiga, J. %A Pacheco Tanaka, D. A. %A Van Sint Annaland, M. %A Gallucci, F. %T Preparation and characterization of thin-film Pd-Ag supported membranes for high-temperature applications %D 2015 %@ 0360-3199 %X This paper reports the preparation, characterization and stability tests of thin-film Pd-Ag supported membranes for high-temperature fluidized bed membrane reactor applications. Various thin-film supported membranes have been prepared by simultaneous Pd-Ag electroless plating and have been initially sealed with a sealing procedure previously validated for Water gas shift (WGS) application (400 °C). The membranes have been characterized for single gas and mixed gas permeation, and for methane steam and autothermal reforming in a fluidized bed membrane reactor at 550-600 °C using a Ru-based catalyst. In addition, the performance of these membranes was compared to commercial membranes from REB Research & Consulting under the same reaction conditions. The applied sealing showed nitrogen leaks at 600 °C and different sealing approaches were tested solving this problem. Finally, also the long-term stability of the thin-film Pd-Ag supported membrane at 600 °C has been investigated. %~