Abstract
In this report, we present a study of using nitrogen-doped graphene as the air electrode of low temperature solid oxide fuel cells (LT-SOFCs) operating at 350 °C or lower. Three graphene derivatives were prepared through hydrothermal reactions and their electrochemical performance and material properties were characterized in the temperature range of 225–350 °C in atmospheric air. Nitrogen-doped graphene was found to exhibit a decent air electrode performance comparable to a porous Pt electrode aged for 8 h at 350 °C, but only for a limited time. After ∼10 h of operation at 350 °C, the electrode performance degraded significantly due to carbon oxidation. However, alternative routes of synthesizing/doping graphene derivatives are expected to improve the viability of using these materials as a practical high temperature air electrode.
| Original language | English (US) |
|---|---|
| Pages (from-to) | 344-352 |
| Number of pages | 9 |
| Journal | Fuel Cells |
| Volume | 17 |
| Issue number | 3 |
| DOIs | |
| State | Published - Jun 2017 |
| Externally published | Yes |
Keywords
- Alternative Electrode Material
- Low Temperature Solid Oxide Fuel Cells
- Nitrogen-doped Graphene
- Oxygen Reduction Reaction
- Solid Oxide Fuel Cell
ASJC Scopus subject areas
- Renewable Energy, Sustainability and the Environment
- Energy Engineering and Power Technology
