PDF Publication Title:
Text from PDF Page: 144
Results and discussion loading 2.0 mg/cm2 of catalyst for anode and cathode (which is double the amount of catalyst loading used in this work) when operating the fuel cell 70°C and 1.0 M methanol. Rhee et al [171] found the fuel cell power density was ~ 50 mW/cm2 at 2.0 M methanol concentration with a catalyst loading of 8 mg/cm2 for both anode and cathode using a fuel cell active area of 10 cm2. Jiang et al [142] loaded their anode and cathode with 2.5 mg/cm2 of catalyst. They obtained a maximum fuel cell power density of 51 mW/cm2 at 65°C and 1.0 M methanol concentration. Dohle et al [172] found the maximum power density of DMFC at 70°C and 1.0 M was 50 mW/cm2 by using anodic catalyst loading of 3.9 mg/cm2 and cathodic catalyst loadings of 2.3 mg/cm2 . In this work, the catalyst loading was 1.0 mg/cm2 for all fabricated electrodes and the optimum fuel cell temperature and concentration was 70°C and 1.0 M respectively. These values were chosen to be the base line of all the following DMFC experiments. This makes a comparison between mordenite MEA and GO MEA with standard MEA. All four MEAs including standard MEA, F-MOR MEA, SULFO-MOR MEA, and GO MEA showed high fuel cell performance (power density) at 70°C. The fuel cell operating temperature has its own advantages and disadvantage. The advantage of increasing the fuel cell operating temperature (40°C to 70°C) is that the power density reached peak at higher temperature. The rise in the power density resulting from increasing the temperature may attribute to the reaction kinetics at the surface of the electrode which helps the oxidation of methanol at the anode. The more oxidation of methanol at the anode the less mix potential at the cathode thus, higher fuel cell performance. Increasing the fuel cell temperature can also ease the transport of the reactants toward the electrodes [173]. Moreover, increasing the fuel cell temperature reduce the ohmic resistance of the membrane thus increases the fuel cell performance [27]. On the other hand, the disadvantage of increasing the fuel cell temperature has its own effect on the open circuit voltage at the cathode side. Also, when increasing the fuel cell temperature methanol crossover from the anode toward the cathode increased. Increasing the temperature increases the methanol crossover by expanding the flow channels in the membrane due to swelling effects of the membrane and also increases the mass transfer loss at higher current density. This behaver was seen in all three Sirhan AL-Batty Page 144PDF Image | Membrane Electrode Assembly Modification by Zeolite and Graphene Oxide
PDF Search Title:
Membrane Electrode Assembly Modification by Zeolite and Graphene OxideOriginal File Name Searched:
nafion-zeolite.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 | RSS | AMP |