PDF Publication Title:
Text from PDF Page: 071
Chapter 4 Nafion®/H-ZSM-5 composite membranes with superior performance for DMFCs 30 25 20 15 10 5 0 012345 Zeolite content [wt.%] Figure 6. Swelling degrees of DE2020 and DEZ membranes as a function of zeolite content. 3.4. Methanol permeability Figure 7a shows that the methanol permeabilities of the composite membranes are lower than pure DE2020 membrane, consistent with earlier study of Byun et al. [17] with Nafion/H-ZSM-5 composite membrane (Si/Al=28). For most of the composite membranes, there is no effect of zeolite content or composition to the methanol cross-over. Interestingly, the methanol permeability of the DEZ25-5 is significantly lower than the others. In the literature, Maxwell model is often used to describe transport properties in heterogeneous polymer systems. The simple form of Maxwell analyzes the steady-state dielectric properties of a dilute suspension of spheres where the permeability of a composite, P, made by dispersing of nonporous, impermeable filler in a continuous polymer matrix is expressed as (2) is the volume frac- DE2020 DEZ100 DEZ75 DEZ 50 DEZ25 ⎝2⎠ where Pp is the permeability of the pure polymer and φ f ⎛⎞ ⎜1−φf ⎟ P=PP.⎜ φ ⎟, ⎜1+ f ⎟ tion of filler. Eq. 2 suggests that the permeability of the filled polymer is lower than of the pure polymer and decreases with increasing of filler con- 63 Swelling degree [%]PDF Image | Development of membrane materials for direct methanol fuel cells
PDF Search Title:
Development of membrane materials for direct methanol fuel cellsOriginal File Name Searched:
thesis_H_Yildirim.pdfDIY PDF Search: Google It | Yahoo | Bing
NFT (Non Fungible Token): Buy our tech, design, development or system NFT and become part of our tech NFT network... More Info
IT XR Project Redstone NFT Available for Sale: NFT for high tech turbine design with one part 3D printed counter-rotating energy turbine. Be part of the future with this NFT. Can be bought and sold but only one design NFT exists. Royalties go to the developer (Infinity) to keep enhancing design and applications... More Info
Infinity Turbine IT XR Project Redstone Design: NFT for sale... NFT for high tech turbine design with one part 3D printed counter-rotating energy turbine. Includes all rights to this turbine design, including license for Fluid Handling Block I and II for the turbine assembly and housing. The NFT includes the blueprints (cad/cam), revenue streams, and all future development of the IT XR Project Redstone... More Info
Infinity Turbine ROT Radial Outflow Turbine 24 Design and Worldwide Rights: NFT for sale... NFT for the ROT 24 energy turbine. Be part of the future with this NFT. This design can be bought and sold but only one design NFT exists. You may manufacture the unit, or get the revenues from its sale from Infinity Turbine. Royalties go to the developer (Infinity) to keep enhancing design and applications... More Info
Infinity Supercritical CO2 10 Liter Extractor Design and Worldwide Rights: The Infinity Supercritical 10L CO2 extractor is for botanical oil extraction, which is rich in terpenes and can produce shelf ready full spectrum oil. With over 5 years of development, this industry leader mature extractor machine has been sold since 2015 and is part of many profitable businesses. The process can also be used for electrowinning, e-waste recycling, and lithium battery recycling, gold mining electronic wastes, precious metals. CO2 can also be used in a reverse fuel cell with nafion to make a gas-to-liquids fuel, such as methanol, ethanol and butanol or ethylene. Supercritical CO2 has also been used for treating nafion to make it more effective catalyst. This NFT is for the purchase of worldwide rights which includes the design. More Info
NFT (Non Fungible Token): Buy our tech, design, development or system NFT and become part of our tech NFT network... More Info
Infinity Turbine Products: Special for this month, any plans are $10,000 for complete Cad/Cam blueprints. License is for one build. Try before you buy a production license. May pay by Bitcoin or other Crypto. Products Page... More Info
CONTACT TEL: 608-238-6001 Email: greg@infinityturbine.com (Standard Web Page)