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Comparative Study of SOFC’s Fabricated With Conventional and Reaction-Sintered 8YSZ Powders

[+] Author Affiliations
Daniel Storjohann, James Daggett, Neal Sullivan

Colorado School of Mines, Golden, CO

Sophie Menzer, Dustin Beeaff

CoorsTek Inc., Golden, CO

Paper No. FuelCell2008-65095, pp. 13-18; 6 pages
doi:10.1115/FuelCell2008-65095
From:
  • ASME 2008 6th International Conference on Fuel Cell Science, Engineering and Technology
  • ASME 2008 6th International Conference on Fuel Cell Science, Engineering and Technology
  • Denver, Colorado, USA, June 16–18, 2008
  • Conference Sponsors: Nanotechnology Institute
  • ISBN: 0-7918-4318-1 | eISBN: 0-7918-3822-6
  • Copyright © 2008 by ASME and CoorsTek

abstract

“Reaction-sintered” powder processing is a new method for low-cost production of yttria-stabilized zirconia (YSZ). Developed by CoorsTek, Inc., reaction-sintered 8YSZ powders may prove to be a low-cost alternative to conventional ceramic powders used in solid oxide fuel cells (SOFC’s). However, the performance of fuel cells fabricated using reaction-sintered 8YSZ powders needs to be quantitatively compared to the conventional 8YSZ powders. In this study, we present results of such a comparison by evaluating both planar anode supports and tubular SOFC’s fabricated using reaction-sintered and conventional 8YSZ powders. Comparisons between material sets were conducted to compare cell morphology and composition, in addition to a number of different SOFC-performance metrics, including gas transport, fuel-conversion and power density. Experimental results show that the performance of SOFCs fabricated using reaction-sintered 8YSZ is comparable to cells fabricated with conventional 8YSZ powders.

Copyright © 2008 by ASME and CoorsTek

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