A-Site Excess (La0.8Ca0.2)1.01FeO3−δ (LCF) Perovskite Hollow Fiber Membrane for Oxygen Permeation in CO2-Containing Atmosphere
A-Site Excess (La0.8Ca0.2)1.01FeO3−δ (LCF) Perovskite Hollow Fiber Membrane for Oxygen Permeation in CO2-Containing Atmosphere
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DOI：
10.1021/acs.energyfuels.7b00121
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发表时间：
2017-03
期刊：
影响因子：
5.3
通讯作者：
Dong Yang;Naitao Yang;Bo Meng;X. Tan;Chi Zhang;J. Sunarso;Zhonghua Zhu;Shaomin Liu
中科院分区：
文献类型：
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作者：
Dong Yang;Naitao Yang;Bo Meng;X. Tan;Chi Zhang;J. Sunarso;Zhonghua Zhu;Shaomin Liu
抗二氧化碳氧选择性陶瓷膜显示出在清洁燃烧和膜基反应中用于绿色化学合成的潜力。在实际应用中，这种膜应该具有高机械强度以及高氧通量和在含二氧化碳的大气中的高稳定性。本文制备了一种（La0.8Ca0.2）1.01FeO3−δ (LCF)钙钛矿中空纤维膜。测试了其在不同气体气氛下的透氧行为，即氦气和二氧化碳。与La0.6Sr0.4Co0.2Fe0.8O3 （LSCF）和ba0.5 sr0.5 co0.8 fe0.3 2o3−δ (BSCF)等典型钙钛矿中空纤维相比，LCF中空纤维在含co2气氛中表现出最高的机械强度、最大的氧通量和稳定性，突出了其在含氧燃料燃烧和甲烷合成气生产中的吸引力。
CO2-resistant oxygen selective ceramic membranes show potential to be utilized in clean combustion and membrane-based reactions for greener chemical synthesis. In real applications, such membranes should have high mechanical strength as well as high oxygen flux and high stability in a CO2-containing atmosphere. In this work, a (La0.8Ca0.2)1.01FeO3−δ (LCF) perovskite hollow fiber membrane was developed. Its oxygen permeation behavior was tested in different gas atmospheres, i.e., helium and carbon dioxide. Compared to the typical perovskite hollow fibers such as La0.6Sr0.4Co0.2Fe0.8O3 (LSCF) and Ba0.5Sr0.5Co0.8Fe0.2O3−δ (BSCF), the LCF hollow fiber displayed the highest mechanical strength as well as the largest oxygen fluxes and stability in a CO2-containing atmosphere, highlighting its attractiveness in oxyfuel combustion and syngas production from methane.