International Journal of Hydrogen Energy, Vol.37, No.1, 797-801, 2012
Fabrication and characterization of anode support low-temperature solid oxide fuel cell based on the samaria-doped ceria electrolyte
In this paper anode support was fabricated by tape casting method using SDC-50 wt.% NiO slurry, then printed the Ce0.8Sm0.2O1.9 (SDC) electrolyte on the green piece which is cut out from the dried slurry piece. After at 90 degrees C drying for 14 h and co-sintered at 1350 degrees C for 10 h, get the Phi 70 mm anode support and electrolyte planar bilayer. Based on the observation of photos and scanning electron microscopy (SEM) indicated that bilayer owns the flat anode support substrate, and the highly dense, crack free electrolyte film which is 12 mu m in thickness. Small disks which were cut out from the Phi 70 mm bilayer structure electrochemically were examined in a single button-cell mode incorporating a SDC-60 wt.% La0.5Sr0.5Co08Fe0.2O3 composite cathode. The single cell was tested at 450 degrees C similar to 600 degrees C, an open-circuit voltage (OCV) of 0.94 V and the maximum power density of 797 mV cm(-2) achieved with dry hydrogen as fuel gas and air as oxidant gas at 600 degrees C. Copyright (C) 2011, Hydrogen Energy Publications, LLC. Published by Elsevier Ltd. All rights reserved.
Keywords:Low-temperature solid oxide fuel;cells (LT-SOFCs);Samaria-doped ceria (SDC);Thin film;Tape casing;Co-sintering