A hydrogen sulfide solid-oxide fuel cell using ceria-based electrolytes
Journal Article
·
· Journal of the Electrochemical Society
- Georgia Inst. of Tech., Atlanta, GA (United States). School of Chemical Engineering
The utilization of H{sub 2}S as the fuel in a solid-oxide fuel cell was demonstrated, with the achievement of 42 mA/cm{sup 2}, the highest current density achieved with H{sub 2}S to date. Two different ionic conductor electrolyte systems have been studied, oxide ions conductors and protonic conductors; the electrolyte membranes had the common component of ceria, CeO{sub 2}. The cells studied had the configurations H{sub 2}S, Pt/Ce{sub 0.81}M{sub 0.19}O{sub 2{minus}a}/Pt, air (where M = Y or Sm) or H{sub 2}S, Pt/SrCe{sub 0.95}Yb{sub 0.05}O{sub 3{minus}a}/Pt, air. Initial results at operating temperatures of 650 to 750 C are reported with yttria-doped ceria, at 690 C with samaria-doped ceria, and at 700 C with ytterbia-doped strontium cerate.
- Sponsoring Organization:
- USDOE
- OSTI ID:
- 142185
- Journal Information:
- Journal of the Electrochemical Society, Journal Name: Journal of the Electrochemical Society Journal Issue: 12 Vol. 140; ISSN 0013-4651; ISSN JESOAN
- Country of Publication:
- United States
- Language:
- English
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