Abstract
A series of cobalt-free and low cost BaCexFe1-xO3-δ (x = 0.15, 0.50, 0.85) materials are successful synthesized and used as the cathode materials for proton-conducting solid oxide fuel cells (SOFCs). The single cell, consisting of a BaZr0.1Ce0.7Y0.2O3-δ (BZCY7)-NiO anode substrate, a BZCY7 anode functional layer, a BZCY7 electrolyte membrane and a BaCexFe1-xO3-δ cathode layer, is assembled and tested from 600 to 700 °C with humidified hydrogen (∼3% H2O) as the fuel and the static air as the oxidant. Within all the cathode materials above, the cathode BaCe0.5Fe0.5O3-δ shows the highest cell performance which could obtain an open-circuit potential of 0.99 V and a maximum power density of 395 mW cm-2 at 700 °C. The results indicate that the Fe-doped barium cerates can be promising cathodes for proton-conducting SOFCs.
Original language | English (US) |
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Pages (from-to) | 801-804 |
Number of pages | 4 |
Journal | Journal of Power Sources |
Volume | 194 |
Issue number | 2 |
DOIs | |
State | Published - Dec 1 2009 |
Externally published | Yes |
Bibliographical note
Funding Information:This work is supported by the Key Program of Chinese Academy of Sciences (Grant No.: KJCX1.YW07) and the National High-tech R&D Program of China (Grant No.: 2007AA05Z157).
Keywords
- Doped barium cerate
- Functional layer
- Perovskite structure
- Proton conducting
- Solid oxide fuel cells
ASJC Scopus subject areas
- Renewable Energy, Sustainability and the Environment
- Energy Engineering and Power Technology
- Physical and Theoretical Chemistry
- Electrical and Electronic Engineering