Influence of SO2 on the phase structure, oxygen permeation and microstructure of K2NiF4-type hollow fiber membranes
作者： Yanying Wei , Qing Liao , Jian Xue , Zhong Li , Haihui Wang
DOI: 10.1016/J.CEJ.2012.12.009
关键词:
摘要: The effect of SO2 on the phase structure, microstructure and oxygen permeation a K2NiF4-type membrane based (Pr0.9La0.1)2(Ni0.74Cu0.21Ga0.05)O4+δ (PLNCG) are investigated. structures PLNCG powder samples exposed to SO2-containing atmosphere for different exposure time with concentrations at temperatures characterized by XRD. erosion flux through hollow fiber its recovery also studied. After treatment, structure spent SEM, EDS shows porous sweep side which is rich in sulfur. K2NiF4-structure has been destroyed Pr2O2SO4, La2O2SO4, NiO formed membrane, indicate sensitive SO2.
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