General model of hydrogen transport through nanoporous membranes

✍ Scribed by K Habib; A Habib

• Publisher: Elsevier Science
• Year: 2004
• Tongue: English
• Weight: 106 KB
• Volume: 35
• Category: Article
• ISSN: 1359-8368
• DOI: 10.1016/j.compositesb.2003.08.007

✦ Synopsis

A general model of transport of gases in solid nanoporous membranes was established. The model was developed based on Dusty Gas Model (DGM), solution diffusion and surface diffusion. As a result, solutions of the model for different transport conditions were derived. In this investigation, parameters of hydrogen gas transport of vinyl film (polymer) and vycor glass membranes were used to calculate semiempirical solutions of the general model. In other words, the solutions of the general model were analytically obtained for different transport conditions, using experimentally obtained parameters of hydrogen gas transport in vinyl film (polymer) and vycor glass membranes. The obtained solutions of the general model were for the hydrogen transport of the membranes in the non-porous, nanoporous, microporous, and to macroporous range. The model was found useful for predictions of hydrogen transport through solid membranes. Additionally the model can be ready used for other gases for predictions of the transport of gases in nanoporous membranes.