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https://hdl.handle.net/2440/103097
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Type: | Journal article |
Title: | A CO₂-stable K₂NiF₄-type oxide (Nd ₀.₉La₀.₁)₂(Ni₀.₇₄Cu 0.₂₁Al₀.₀₅)O₄+δ for oxygen separation |
Other Titles: | A CO(2)-stable K(2)NiF(4)-type oxide (Nd (0).(9)La(0).(1))(2)(Ni(0).(74)Cu 0.(21)Al(0).(05))O(4)+delta for oxygen separation |
Author: | Chen, Y. Liao, Q. Wei, Y. Li, Z. Wang, H. |
Citation: | Industrial and Engineering Chemistry Research, 2013; 52(25):8571-8578 |
Publisher: | American Chemical Society |
Issue Date: | 2013 |
ISSN: | 0888-5885 1520-5045 |
Statement of Responsibility: | Yan Chen, Qing Liao, Yanying Wei, Zhong Li and Haihui Wang |
Abstract: | A K2NiF4-type oxide (Nd0.9La0.1)2(Ni0.74Cu0.21Al0.05)O4+δ (NLNCA) has been successfully synthesized by a sol–gel method. The oxygen permeation and stability of the NLNCA membrane under CO2 atmosphere were systematically studied. A steady oxygen permeation flux of 0.39 mL/(min·cm2) was obtained through the NLNCA membrane with a membrane thickness of 0.6 mm at 975 °C when CO2 was used as the sweep gas. More importantly, the oxygen permeation flux has no significant decrease during 250 h operation, which indicates that the NLNCA membrane is stable under CO2. X-ray diffraction analysis of the spent membrane shows that the membrane retains K2NiF4-type structure and no carbonate was formed even exposed to CO2 after 250 h operation. The results indicate that the NLNCA membrane has a great potential application in supplying oxygen for oxyfuel combustion with CO2 capture. Moreover, the cost of the NLNCA is low, and it is beneficial for industrial application. |
Rights: | Copyright © 2013 American Chemical Society |
DOI: | 10.1021/ie4008369 |
Published version: | http://dx.doi.org/10.1021/ie4008369 |
Appears in Collections: | Aurora harvest 3 Chemical Engineering publications |
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