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Fabrication of bi-layered proton conducting membrane for hydrocarbon solid oxide fuel cell reactors
- Source :
- Electrochimica Acta. 55:1145-1149
- Publication Year :
- 2010
- Publisher :
- Elsevier BV, 2010.
-
Abstract
- About 20 nm precursor powders for BaCe0.85Y0.15O3−δ (BCY) were synthesized by combustion method. The nanopowder had about 100 times larger specific volume than sintered BCY. A bi-layered proton conducting membrane having a thick porous BCY substrate and an integrally supported dense BCY thin film were co-fabricated facilely by pressing two layers comprising the precursor powder and its mixture with starch, followed by co-sintering at high temperature. Pt was impregnated into the porous BCY layer matrix as anode catalyst for dehydrogenation of ethane to ethylene. A hydrocarbon solid oxide fuel cell with the BCY thin film electrolyte and Pt electrodes demonstrated high selectivity (90.5%) to ethylene at 36.7% ethane conversion with co-generation of 216 mW cm−2 electrical energy output at 700 °C. The ethane conversion and ethylene selectivity increased with current density.
Details
- ISSN :
- 00134686
- Volume :
- 55
- Database :
- OpenAIRE
- Journal :
- Electrochimica Acta
- Accession number :
- edsair.doi...........1b291571482e22ec7ee332bc553860a8
- Full Text :
- https://doi.org/10.1016/j.electacta.2009.10.010