Y-doped BaCeO3−δ nanopowders as proton-conducting electrolyte materials for ethane fuel cells to co-generate ethylene and electricity
✍ Scribed by Xian-Zhu Fu; Jing-Li Luo; Alan R. Sanger; Nancy Luo; Karl T. Chuang
- Publisher
- Elsevier Science
- Year
- 2010
- Tongue
- English
- Weight
- 967 KB
- Volume
- 195
- Category
- Article
- ISSN
- 0378-7753
No coin nor oath required. For personal study only.
✦ Synopsis
Y-doped BaCeO 3-ı (BCY) powders synthesized using a combustion method are pure perovskite phases. The particles are uniform spherical particles about 50 nm. The properties of BCY proton-conducting electrolyte sintered at different temperatures from pressed nanopowders were systematically investigated. Dense BCY pellets are obtained at temperatures higher than 1400 • C for 10 h. Electrical conductivity and resistance to CO 2 atmosphere each increase with sintering temperature. Fuel cells having about 0.8 mm thick BCY electrolyte and Pt electrodes co-produce 151 mW cm -2 electrical power and value-added ethylene with selectivity over 90% at ethane conversion about 35% at 700 • C.