期刊
ELECTROCHEMISTRY COMMUNICATIONS
卷 69, 期 -, 页码 80-83出版社
ELSEVIER SCIENCE INC
DOI: 10.1016/j.elecom.2016.06.008
关键词
Solid oxide electrolysis cell; CO2 reduction; Symmetrical cell; Titanium-substituted lanthanum strontium ferrite
资金
- National Science Foundation of China [51372057, 21373071, 51402072]
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 degrees C. The current density is 521 mA cm(-2) at an applied voltage of 2.0 V. The lowest polarization resistance R-p of this symmetrical SOEC is obtained at 2.0 V with a value of as low as 0.08 Omega cm(2), 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. (C) 2016 Elsevier B.V. All rights reserved.
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