Ni-Mo Porous Alloy Fabricated as Supporting Component For Metal-Supported Solid Oxide Fuel Cell and Cell Performance

摘要

In this study, a continuous manufacturing process including spray drying, compression molding and sintering steps is developed and constructed to produce molybdenum (Mo)-containing nickel (Ni)-based porous alloy as the supporting component for metal-supported solid oxide fuel cell. The porous interconnected networks of Ni-Mo alloy are made by introducing pyrolyzable filler during fabrication processes. A compression load of 35 ton is applied to form a specimen with a size of 60×60×1.2 mm and then sintered at 1200°C to obtain porous alloy. The anode (Ce_(0.55)La_(0.45)O_(2-δ) -NiO), electrolyte (La_(0.8)Sr_(0.2)Ga_(0.8)Mg_(0.2)O_(3-δ)) and cathode (Sm_(0.5)Sr_(0.5)CoO_(3-δ)) are coated by using an atmospheric plasma spraying technique. The open circuit voltage is higher than 1.0 V under cell performance testing from 600°C to 750°C. The measured maximum output power densities (@0.6V) of this cell reached 415, 716, 1,012 and 1,196 mW/cm~2 at 600°C, 650°C, 700°C and 750°C, respectively, by employing H_2 as fuel and air as oxidant.