PDF Publication Title:
Text from PDF Page: 084
VI. Reaction Network Theory applied to the electro-chemical oxidation of methanol Several mathematical models have been developed for methanol electro-oxidation. They use an oversimplified mechanism for the reaction considering only one or two intermediate species. However, the real mechanism is much more complicated and most steps remain unknown. 1. Reaction Network Theory The new graph-theoretical approach developed by Fishtik et al [21] was used in an effort to improve our understanding of methanol electro-oxidation reaction and its mechanism. This approach is based on Reaction Route Graphs which depict all possible succession of reactions (Reaction Route) that lead to the studied overall reaction. It should be noted that in this case, the nodes do not represent a particular species. The drawing of this type of graph implies the knowledge of the complete mechanism or at least an assumption since every branch corresponds to a step in the mechanism. An analogy can be made between these graphs and electrical networks. Besides, the concept of reaction resistance was introduced [22]. This allows the use of both Kirchhoff’s and Ohm’s law in order to analyze and reduce the network. The reaction resistance is defined as the mean value of the reciprocal rate (similar to a conductance) between the reverse and forward rate. → lnrP← R=1=rP Pr→← P rP−rP To calculate the resistance one needs an expression for the forward and reverse reaction rate of elementary step. Assuming that rate constants follow Arrhenius law, activation energies and pre-exponential factors can be calculated from a thermodynamic transition state model. By evaluating and comparing the resistances along parallel - 84 -PDF Image | Direct Methanol Fuel Cell (DMFC) Performance
PDF Search Title:
Direct Methanol Fuel Cell (DMFC) PerformanceOriginal File Name Searched:
methanol-fuel-cell-performance.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)