Fabrication and characterization of low-temperature SOFC stack based on GDC electrolyte membrane

作者：Ding Jiao; Liu Jiang^*; Yin Guoqiang

来源：Journal of Membrane Science, 2011, 371(1-2): 219-225.

DOI：10.1016/j.memsci.2011.01.051

• Solid oxide fuel cell (SOFC)
• Low-temperature
• Gadolinia-doped ceria (GDC)
• Tubular
• Stack

A novel low-temperature anode-supported cone-shaped tubular solid oxide fuel cell (SOFC) and segmented-in-series (SIS) SOFC stack based on gadolinia-doped ceria (GDC) membrane which is fabricated by dip coating technique are developed in this study.
The single cell, NiO-GDC/GDC (15 mu m)/BSCF-GDC, shows an open-circuit voltage (OCV) of 0.90 V at 400 degrees C and exhibits maximum power densities of 17, 49, 129, 268 and 429 mW cm(-2) at 400, 450, 500, 550 and 600 degrees C, respectively, using moist hydrogen (50 ml min(-1)) as fuel and ambient air as oxidant. A two-cell-stack based on the above-mentioned cone-shaped tubular anode-supported SOFC is fabricated. And its typical operating characteristics are investigated. The results show that the two-cell-stack presents an open circuit voltage (OCV) of about 1.86 Vat 400 degrees C and an output power of 0.55W (at 0.4A and 1.4V) at 550 degrees C. This indicates that the anode-supported cone-shaped tubular SIS-SOFC stack based on GDC membrane is highly promising for low temperature SOFC of portable applications.

• 单位
  华南理工大学