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Fabrication and characterization of anode-supported micro-tubular solid oxide fuel cell based on BaZr0.1Ce0.7Y0.1Yb0.1O3−δ electrolyte

✍ Scribed by Fei Zhao; Chao Jin; Chenghao Yang; Siwei Wang; Fanglin Chen

Publisher
Elsevier Science
Year
2011
Tongue
English
Weight
613 KB
Volume
196
Category
Article
ISSN
0378-7753

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✦ Synopsis

Anode-supported micro-tubular solid oxide fuel cells (SOFCs) based on a proton and oxide ion mixed conductor electrolyte, BaZr 0.1 Ce 0.7 Y 0.1 Yb 0.1 O 3-ı (BZCYYb), have been fabricated using phase inversion and dip-coating techniques with a co-firing process. The single cell is composed of NiO-BZCYYb anode, BZCYYb electrolyte and La 0.6 Sr 0.4 Co 0.2 Fe 0.8 O 3-ı (LSCF)-BZCYYb cathode. Maximum power densities of 0.08, 0.15, and 0.26 W cm -2 have been obtained at 500, 550 and 600 • C, respectively, using H 2 as fuel and ambient air as oxidant.

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Fuel cells with BaZr 0.1 Ce 0.7 Y 0.2 O 3-d (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 el