Article ID | Journal | Published Year | Pages | File Type |
---|---|---|---|---|
7730978 | Journal of Power Sources | 2015 | 7 Pages |
Abstract
The electrochemical performance of Ni-gadolinia-doped ceria (GDC) cathode was studied for CO2 reduction on solid oxide electrolysis cell (SOEC) at 1000 °C and compared with that of Ni-yttria stabilized zirconia (Ni-YSZ) cathode. Ni-GDC cathode demonstrated higher performance for CO2 reduction. Furthermore, lanthanum strontium cobalt ferrite (LSCF) anode exhibited lower overpotential than lanthanum strontium manganite-yttria stabilized zirconia (LSM-YSZ) anode. Ni-GDC cathode and LSCF anode were found to be stable under a constant current density of â0.90 A cmâ2 at 900 °C. Moreover, no substantial performance degradation was observed for the cell having Ni-GDC cathode and LSCF anode even after 9 h of electrolysis operation under a constant current density of â1.2 A cmâ2 at 1000 °C.
Keywords
Related Topics
Physical Sciences and Engineering
Chemistry
Electrochemistry
Authors
Vandana Singh, Hiroki Muroyama, Toshiaki Matsui, Satoshi Hashigami, Toru Inagaki, Koichi Eguchi,