@article{scholars6564, doi = {10.1007/s13369-016-2193-4}, publisher = {Springer Verlag}, volume = {41}, year = {2016}, pages = {4763--4774}, note = {cited By 3}, number = {12}, journal = {Arabian Journal for Science and Engineering}, title = {Nano-Structured Porous Yttria-Stabilized Zirconia Membrane for High-Temperature CO 2 Capture from H 2/ CO 2 Mixture}, issn = {2193567X}, author = {Shah, S. H. and Uemura, Y. and Yusup, S. and Kusakabe, K. and Mahmood, Q. and Ali, A.}, abstract = {A yttria-stabilized zirconia (YSZ, 8 mol Y 2O 3) membrane was prepared employing zirconium n-propoxide as a precursor via sol{\^a}??gel method. Unlike conventional methods, hydrolyzing water was slowly released in this method through esterification of 1-propanol and glacial acetic acid. X-ray diffraction verified that YSZ membrane was partially transformed to the tetragonal phase. Ten times dip-coated membrane thickness was about 742{\^A} nm, determined by field emission scanning electron microscopy (FE-SEM) micrograph. Brunauer{\^a}??Emmet{\^a}??Teller measured average pore size of unsupported YSZ from gas adsorption and desorption indicating two modes centered at 2.66 and 2.38{\^A} nm. Crystallite size (D) as calculated from Scherrer{\^a}??s equation was 6.8, 12.23, and 13.61{\^A} nm for unsupported YSZ powder before and after calcination, respectively, at 25, 500, and 600{\^a}??C. Thermogravimetric analysis showed that the mass loss of the samples calcined at temperatures higher than 600{\^a}??C had no significant differences indicating the completion of loss of organics. Supported YSZ membrane was tested by a gas permeation apparatus. The single gas permeance of YSZ membrane including {\^I}{$\pm$} - Al 2O 3 was measured as 14.89 {\~A}? 10 - 6 and 1.75{\~A}?10-6molm-2s-1Pa-1 for H 2 and CO 2 at 300{\^a}??C, respectively. Permeance of H 2 and CO 2 through YSZ in 75:25 H 2/CO 2 binary feed mixture was 9.696 {\~A}? 10 - 6 and 0.97{\~A}?10-6molm-2s-1Pa-1, respectively, at 300{\^a}??C. The selectivity of hydrogen in YSZ was 10. It was concluded that the membrane was highly promising for the separation of H 2/ CO 2 mixture from various H 2-containing process streams under steam environment for high-temperature separation. {\^A}{\copyright} 2016, King Fahd University of Petroleum \& Minerals.}, url = {https://www.scopus.com/inward/record.uri?eid=2-s2.0-84991250431&doi=10.1007\%2fs13369-016-2193-4&partnerID=40&md5=9a0533531adad1130906f825bd9de9cf} }