Hydrogen Solubility in Pr-doped and Un-doped YSZ for One Chamber Fuel Cell

Lasse Bay, T. Horita, N. Sakai, M. Ishikawa, K. Yamaji, H. Yokokawa

Research output: Contribution to journalJournal articleResearchpeer-review

Abstract

Yttria-stabilised zirconia electrolytes (YSZ and Pr-doped YSZ) and yttria-doped strontium cerate (SYC) were tested in a one chamber fuel cell fed with a mixture of methane and air at 1223 K. The obtained performances were 4 mW cm(-2), 3 mW cm(-2), 2.5 mW cm(-2), and 0.15 mW cm(-2) for SYC, 1.8 mol.% Pr-doped YSZ, 17 mol.% Pr-doped YSZ, and un-doped YSZ, respectively. These values are lower than those reported by Asano ct al., due to poisoning of the gold electrode. The solubility of hydrogen in the electrolytes was compared by means of tracer exchange using a H(2) + D(2)O mixture and subsequent SIMS analysis. Doping of Pr in the YSZ resulted in a higher intensity of the D ion, which indicated that hydrogen solubility was raised by the doping. The solubility of hydrogen in the electrolyte may affect the performance of one chamber fuel cells. (C) 1998 Elsevier Science B.V. All rights reserved.
Original languageEnglish
JournalSolid State Ionics
Volume113
Issue numberSI
Pages (from-to)363-367
ISSN0167-2738
DOIs
Publication statusPublished - 1998
Event11th International Conference on Solid State Ionics - Waikiki Beach, Honolulu, Hawaii, United States
Duration: 16 Nov 199721 Nov 1997

Conference

Conference11th International Conference on Solid State Ionics
LocationWaikiki Beach
CountryUnited States
CityHonolulu, Hawaii
Period16/11/199721/11/1997

Cite this

Bay, L., Horita, T., Sakai, N., Ishikawa, M., Yamaji, K., & Yokokawa, H. (1998). Hydrogen Solubility in Pr-doped and Un-doped YSZ for One Chamber Fuel Cell. Solid State Ionics, 113(SI), 363-367. https://doi.org/10.1016/S0167-2738(98)00301-4