PDF Publication Title:
Text from PDF Page: 089
Chapter 5 Micro-structured Nafion membranes for DMFC applications 2 bars of pressure in order to preserve the micro-structures on the mem- brane. Each symbol in the graph corresponds to a different membrane. Plot- ted values were the average of minimum 2 measurements. For all mem- branes, the maximum power density increases in time during the first day due to the activation of the catalyst particles and the membrane and later reaches a plateau, in agreement with our previous study [13]. The power densities of μs N117, hp N117 and normal N117 membranes, after 800min of operation, are 230 ± 14 mW/cm2, 215 ± 7 mW/cm2 and 205 ± 7 mW/cm2, respectively. 240 210 180 150 120 90 60 30 0 0 200 400 600 Time [min] 800 1000 Figure 7. Maximum power density values of various N117 membranes as a function of measurement time. Figure 8 shows the polarization and power density curves of each membrane at the end of the last measurement day. The hp N117 and μs N117 have higher open cell voltages than the normal N117 membrane due to their low methanol fluxes. Power densities of all membranes are similar at current densities below 600mA/cm2. When the current density increases further, then the performance of membranes differs from one another. In fact, the performance of μs N117 membrane is better than both hp N117 and normal N117 membrane probably due to better electrocatalyst utilization due to increased effective surface area. However, the performance of hp N117 is not significantly better than normal N117 membrane despite its low methanol crossover. 81 μs N117 hp N117 N117 Max. Power Density [mW/cm2]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)