Gas Sorption, Diffusion, and Permeation in Nafion

• Published in: Macromolecules Vol. 49; no. 1; pp. 280 - 286
• Main Authors: Mukaddam, Mohsin, Litwiller, Eric, Pinnau, Ingo
• Format: Journal Article
• Language: English
• Published: American Chemical Society 12.01.2016
• Subjects: carbon dioxide; feeds; fluorides; gases; helium; hydrogen; methane; natural gas; nitrogen; oxygen; permeability; sorption; sorption isotherms; vinyl compounds; X-ray diffraction

The gas permeability of dry Nafion films was determined at 2 atm and 35 °C for He, H2, N2, O2, CO2, CH4, C2H6, and C3H8. In addition, gas sorption isotherms were determined by gravimetric and barometric techniques as a function of pressure up to 20 atm. Nafion exhibited linear sorption uptake for lo...