期刊
SCIENCE CHINA-MATERIALS
卷 61, 期 1, 页码 57-64出版社
SCIENCE PRESS
DOI: 10.1007/s40843-017-9125-1
关键词
BaZrO3; inkjet printing; impregnation; La0.8Sr0.2MnO3-delta; solid oxide fuel cells
资金
- National Natural Science Foundation of China [51602238]
- Thousand Talents Plan
Proton-conducting oxides offer a promising electrolyte solution for intermediate temperature solid oxide fuel cells (SOFCs) due to their high conductivity and low activation energy. However, the lower operation temperature leads to a reduced cathode activity and thus a poorer fuel cell performance. La0.8Sr0.2MnO3-delta (LSM) is the classical cathode material for high-temperature SOFCs, which lack features as a proper SOFC cathode material at intermediate temperatures. Despite this, we here successfully couple nanostructured LSM cathode with proton-conducting electrolytes to operate below 600 degrees C with desirable SOFC performance. Inkjet printing allows depositing nanostructured particles of LSM on Y-doped BaZrO3 (BZY) backbones as cathodes for proton-conducting SOFCs, which provides one of the highest power output for the BZY-based fuel cells below 600 degrees C. This somehow changes the common knowledge that LSM can be applied as a SOFC cathode materials only at high temperatures (above 700 degrees C).
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