A phase inversion/sintering process to fabricate nickel/yttria-stabilized zirconia hollow fibers as the anode support for micro-tubular solid oxide fuel cells

作者：Yang, Naitao; Tan, Xiaoyao^*; Ma, Zifeng

来源：Journal of Power Sources, 2008, 183(1): 14-19.

DOI：10.1016/j.jpowsour.2008.05.006

• micro-tubular solid oxide fuel cells
• Ni/YSZ cermet anode
• hollow fiber
• phase inversion

NiO/YSZ hollow fibers were fabricated via a combined phase inversion and sintering technique, where polyethersulfone (PESf) was employed as the polymeric binder, N-methyl-2-pyrrolidone (NMIP) as the solvent and polyvinylpyrrolidone (PVP) as the additive, respectively. After reduction with hydrogen at 750 degrees C for 5 h, the porous Ni/YSZ hollow fibers with an asymmetric structure comprising of a microporous layer integrated with a finger-like Porous layer were obtained, which can be served as the anode support of micro-tubular solid oxide fuel cells (SOFCs). As the sintering temperature was increased from 1200 to 1400 degrees C, the mechanical strength and the electrical conductivity of the Ni/YSZ hollow fibers increased from 35 to 178 MPa and front 30 to 772 S cm(-1), respectively but the porosity decreased from 64.2% to 37.0%. The optimum sintering temperature Was found to be between 1350 and 1400 degrees C for Ni/YSZ hollow fibers applied as the anode Support for micro-tubular SOFCs.

• 出版日期2008-8-15
• 单位山东理工大学; 上海交通大学