A Performance Study of Solid Oxide Fuel Cells With BaZr0.1Ce0.7Y0.2O3-d Electrolyte Developed by Spray-Modified Pressing Method

作者：Guan B; Lu Z^*; Wang G; Wei B; Li W; Huang X

来源：Fuel Cells, 2012, 12(1): 141-145.

DOI：10.1002/fuce.201100109

• BaZr0
• 1Ce0
• 7Y0
• 2O3-d
• Fuel Cell
• Membrane Electrolyte
• Proton Conductor
• Spray-Modified Pressing

Fuel cells with BaZr0.1Ce0.7Y0.2O3d (BZCY) proton-conducting electrolyte is fabricated using spray-modified pressing method. In the present study the spray-modified pressing technology is developed to prepare thin electrolyte layers on porous Ni-BZCY anode supports. SEM data show the BZCY electrolyte film is uniform and dense, well-bonded with the anode substrate. An anode-supported fuel cell with BZCY electrolyte and Ba0.5Sr0.5Co0.8Fe0.2O3d (BSCF) cathode is characterized from 600 to 700 degrees C using hydrogen as fuel and ambient air as oxidant. Maximum power density of 536 mW cm2 along with a 1.01 V OCV at 700 degrees C is obtained. Impedance spectra show that Ohmic resistances contribute minor parts to the total ones, for instance, only similar to 23% when operating at 600 degrees C. The results demonstrate that spray-modified pressing technology offers a simple and effective way to fabricate quality electrolyte film suitable to operate in intermediate temperature.

• 出版日期2012-2
• 单位哈尔滨工业大学