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Enhanced electrochemical properties of Sm_(0.2)Ce_(0.8)O_(1.9) film for SOFC electrolyte fabricated by pulsed laser deposition
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作者 Xi-Feng Ding jing-yu shen +1 位作者 Xiao-Jia Gao Jun Wang 《Rare Metals》 SCIE EI CAS CSCD 2021年第5期1294-1299,共6页
The cubic fluorite structure Sm_(0.2)Ce_(0.8)O_(1.9)(SDC)film was fabricated by pulsed laser deposition(PLD)to be used as electrolyte for solid oxide fuel cells(SOFCs).The SDC target was prepared by co-precipitation p... The cubic fluorite structure Sm_(0.2)Ce_(0.8)O_(1.9)(SDC)film was fabricated by pulsed laser deposition(PLD)to be used as electrolyte for solid oxide fuel cells(SOFCs).The SDC target was prepared by co-precipitation process at a low sintering temperature(1,250℃)with a relative density of 97%.By inserting the PLD seed layer with the thickness of 3μm,robust electrolyte films were successfully fabricated on La_(0.6)Sr_(0.4)Co_(0.2)Fe_(0.8)O_(3)(LSCF)substrate.The SDC film growing at a substrate temperature of 650℃with thermal treatment and oxygen gas pressure of 10 Pa has high ionic conductivity of 0.075 S·cm^(-1) at 800℃.The results demonstrate that the dense SDC thin films prepared by PLD are suitable for low-temperature SOFC applications. 展开更多
关键词 Pulsed laser deposition ELECTROLYTE Sm_(0.2)Ce_(0.8)O_(1.9) Ionic conductivity
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