RT Journal Article
T1 N2, He and CO2 diffusion mechanism through nanoporous YSZ/γ-Al2O3 layers and their use in a pore-filled membrane for hydrogen membrane reactors
A1 Arratibel, Alba
A1 Astobieta, Uxue
A1 Pacheco Tanaka, David Alfredo
A1 Van Sint Annaland, Martin
A1 Gallucci, Fausto
AB Nanoporous ceramic supports for pore filled membranes were prepared on ceramic supports (α-Al2O3) with pore size of 100 nm by adding additional layers with different proportions of YSZ/γ-Al2O3 (ranging from 50% to 90% of YSZ) by dip-coating and the effect of different parameters in the preparation method have been investigated. The diffusion mechanisms of N2, He and CO2 through the supported nanoporous layers have been studied in detail with permeation measurements at a temperature range of 50-400°C and pressure difference of 30-100 kPa. It was observed that as the amount of γ-Al2O3 in the nanoporous layers increases, the adsorption of CO2 is favored at low temperatures and pressures. Finally, a pore-filled Pd/YSZ/γ-Al2O3 (60 wt%YSZ-40 wt. γ-Al2O3) membrane was successfully prepared and its permeation performance was tested over 900 h at 500 and 550 C, showing relatively low ideal H2/N2 perm-selectivity of about 50 due to low hydrogen flux.
SN 0360-3199
YR 2016
FD 2016-06-01
LK https://hdl.handle.net/11556/4413
UL https://hdl.handle.net/11556/4413
LA eng
NO Arratibel , A , Astobieta , U , Pacheco Tanaka , D A , Van Sint Annaland , M & Gallucci , F 2016 , ' N 2 , He and CO 2 diffusion mechanism through nanoporous YSZ/γ-Al 2 O 3 layers and their use in a pore-filled membrane for hydrogen membrane reactors ' , International Journal of Hydrogen Energy , vol. 41 , no. 20 , pp. 8732-8744 . https://doi.org/10.1016/j.ijhydene.2015.11.152
NO Publisher Copyright: © 2015 Hydrogen Energy Publications LLC.
NO The presented work is funded within FERRET project as part of European Union's Seventh Framework Programme (FP7/2007-2013) for the Fuel Cells and Hydrogen Joint Technology Initiative under grant agreement n° 621181. Note: “The present publication reflects only the authors' views and the Union is not liable for any use that may be made of the information contained therein”.
DS TECNALIA Publications
RD 30 jul 2024