Abstract
Novel perovskite-type La0.3Sr0.7Fe0.7Ti0.3O3 (LSFT) oxide is investigated as both anode and cathode materials in a symmetrical solid oxide electrolysis cell (SOEC) for direct electrolysis of pure CO2 at 800 °C. The current density is 521 mA cm− 2 at an applied voltage of 2.0 V. The lowest polarization resistance Rp of this symmetrical SOEC is obtained at 2.0 V with a value of as low as 0.08 Ω cm2, which is much lower than that of other perovskite and Ni-cermet cathode. LSFT cathode also shows excellent durability in pure CO2 electrolysis, especially at high voltage of 2.0 V. Our results indicate that the LSFT is a promising alternative electrode material for CO2 electrolysis.
| Original language | English |
|---|---|
| Pages (from-to) | 80-83 |
| Number of pages | 4 |
| Journal | Electrochemistry Communications |
| Volume | 69 |
| DOIs | |
| Publication status | Published - 1 Aug 2016 |
| Externally published | Yes |
Keywords
- CO reduction
- Solid oxide electrolysis cell
- Symmetrical cell
- Titanium-substituted lanthanum strontium ferrite