Abstract
Methane-fueled thin film micro-solid oxide fuel cells (μSOFCs) based on palladium (Pd) anodes are discussed in this article. The μSOFCs are composed of porous platinum (Pt) cathodes, 8 mol.% yttria-stabilized zirconia (YSZ) ultrathin electrolytes, and Pd anodes - specifically, a Pt/YSZ/Pd heterostructure synthesized by physical vapor deposition. The Pt/YSZ/Pd μSOFCs exhibit a power density of 385 mW cm-2 and an open circuit voltage of 0.77 V at 550 °C. A detailed study on synthesis, microstructure and functional properties of the nanoporous Pd films is presented. Possible anodic methane reactions, carbon deposition on Pd anodes, and carbon suppression approaches are discussed. The results are of potential relevance to advancing low temperature micro-fuel cell technology using hydrocarbon fuels.
| Original language | English (US) |
|---|---|
| Pages (from-to) | 6299-6304 |
| Number of pages | 6 |
| Journal | Journal of Power Sources |
| Volume | 196 |
| Issue number | 15 |
| DOIs | |
| State | Published - Aug 1 2011 |
| Externally published | Yes |
All Science Journal Classification (ASJC) codes
- Renewable Energy, Sustainability and the Environment
- Energy Engineering and Power Technology
- Physical and Theoretical Chemistry
- Electrical and Electronic Engineering
Keywords
- Anode
- Hydrocarbon
- Methane
- Palladium
- Solid oxide fuel cell
- Thin film