Comparison of Wicke–Kallenbach and Grahams diffusion cells for . . . Counter-current gas diffusion measurements on a series of porous solids covering a broad range of pore sizes (mean pore radii between 78 nm and 10 μ m) were performed in the Wicke–Kallenbach and Graham's diffusion cells
Better standards are needed for membrane materials - Nature For example, the Wicke–Kallenbach method measures gas flux driven by the partial pressure difference in the membrane cell, and the mixed-gas selectivity can be overestimated because of the
Wicke-Kallenbach method - Big Chemical Encyclopedia The second method is called the Wicke-Kallenbach (WK) method as these researchers first described this technique for diffiision experiments In this method the membrane is flushed with gas at both sides
doi:10. 1016 j. ces. 2007. 10. 032 - ResearchGate Counter-current gas diffusion in a series of porous samples with a broad range of pore radii (from 78 nm up to 10 m) was followed in the Wicke–Kallenbach and Graham’s diffusion cells
Determination of Transport Parameters of Porous Catalysts Using . . . The new experimental way was proposed and verified in this study to get the associated transport parameters (r)ip, (rL)ip from permeation measurements on the three industrial catalysts under non-stationary conditions in the modified Wicke—Kallenbach cell