[PDF] Top 20 Eliminating micro porous layer from gas diffusion electrode for use in high temperature polymer electrolyte membrane fuel cell
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Eliminating micro porous layer from gas diffusion electrode for use in high temperature polymer electrolyte membrane fuel cell
... current density region (< 0.2 A cm −2 ), the performance difference between the two GDEs is not significant because their performances are in the charge transfer-controlled region. However, this difference becomes ... See full document
36
Effect of Hydrophobic Particles in a Gas Diffusion Electrode on Cell Performance in Polymer Electrolyte Membrane Fuel Cells
... for gas diffusion layer (GDL) have also investigated improvement of cell performance by increasing gas permeability and electrochemical surface area (ECSA) ...of porous GDEs for ... See full document
11
A comprehensive fractal approach in determination of the effective thermal conductivity of gas diffusion layers in polymer electrolyte membrane fuel cells
... In measuring thermal conductivity, there are several methods can be used. The prediction methods for effective thermal conductivity of porous media can be predicted by empirical formulas, numerical simulations, or ... See full document
42
Fuel Cell Handbook (4th Ed, 1998) pdf
... for cell construction materials; these developments are reviewed by Appleby (4) and Kordesch ...tantalum cell hardware. The use of high surface area carbon blacks to support Pt permitted a ... See full document
268
The Effect of Gas Diffusion Layer PTFE Content on The Performance of High Temperature Proton Exchange Membrane Fuel Cell
... Gas diffusion layer (GDL) with different polytetrafluoroethylene (PTFE) contents in the carbon substrate and the micro-porous layer (MPL) were investigated for the application in ... See full document
8
Influences of Gas Diffusion Layers with Pitch-based Carbon Coated in Polymer Electrolyte Membrane Fuel Cell
... The most common materials used to make GDLs, no matter carbon paper or carbon cloth are both made of carbon fibers. Carbon fibers can be made by different manufacturing processes (intrudes precursor, temperature, ... See full document
9
Numerical Simulation of Non-Uniform Gas Diffusion Layer Porosity Effect on Polymer Electrolyte Membrane Fuel Cell Performance
... the diffusion layer have a significant impact on the optimum performance of the catalyst and the ...are porous to allow for distribution of the gases to unexposed areas of the flow channel and this ... See full document
14
Electrochemical Dissolution of Platinum and Ruthenium from Membrane Electrode Assemblies of Polymer Electrolyte Fuel Cells
... a high catalytic activity for the oxygen reduc- tion reaction and the hydrogen oxidation ...for polymer electro- lyte fuel cells (PEFCs), although Pt is a precious ...for use as power sources ... See full document
5
Influence of PTFE on water transport in gas diffusion layer of polymer electrolyte membrane fuel cell
... in gas diffusion layers to improve the performance of fuel ...different cell configurations with various PTFE loading in cathode and anode GDLs were ...that fuel cell with a PTFE ... See full document
16
Modeling and finite element mass transport analysis of a polymer electrolyte membrane fuel cell at different operating conditions
... PEM fuel cell it is essential to rightly specify the materials for each of the layers in the ...PEM fuel cell, to enhance the performance of it, choosing the best material was ...as ... See full document
5
Relationships Between Prior Experiences, Current Teaching Contexts, and Novice Teachers' Use of Concrete Representation for Mathematics Instruction
... of high-performance polymers such as polyimides, polyamides and poly(arylene ether)s and the respective polymers show good solubility in organic solvents, low water uptake and dielectric properties, and ... See full document
193
Vulcan/Pt/Ce Catalysts Prepared by Impregnation Using EDTA for Direct Methanol Fuel Cell, Direct Ethanol Fuel Cell, and Polymer Electrolyte Membrane Fuel Cell
... Fuel cell technology is one of the most promising alter- natives to obtain electric energy in an efficient way with a low environmental impact and flexible applications ...A fuel cell is an ... See full document
9
Functionalized and Electrospun Polymeric Materials as High-Performance Membranes for Direct Methanol Fuel Cell: A Review
... exchange membrane for fuel cell application should complete with intrinsic properties, especially on methanol crossover and proton conductivity ...exchange membrane (see Table ...nanofibers ... See full document
8
Mathematical modelling of the catalyst layer of a polymer electrolyte fuel cell
... Experimental studies have suggested that, during the preparation process, the carbon grains form clumps (called agglomerates) that are coated by the electrolyte (Weber & Newman, 2004; Uchida et al., 1995, ... See full document
29
LiFeO₂ as an anode material for high temperature fuel cells
... button cell can be fabricated by laminating, pressing, cutting and punching the dried green ...dense electrolyte material were cold laminated together using a ...A layer of the tape consisting of the ... See full document
187
Performance Investigation of Membrane Electrode Assemblies for High Temperature Proton Exchange Membrane Fuel Cell
... in cell ohmic resistance for the MEAs with the last three membranes ...AM membrane is only ...active layer, which means that the interactions between the GDE and the AM mem- brane are more ... See full document
6
Enzymatic Based Biocathode in a Polymer Electrolyte Membrane Fuel Cell
... the use of biocatalysts like enzymes. In this context, a biochemical fuel cell is a system that uses biocatalysts [2,3] and can be used in low power applications such as implanted pacemarkers, and ... See full document
8
Studies on PEM Fuel Cells Using Various Alcohols for Low Power Applications
... Alcohol Fuel Cell (DAFC) appears to be the most promising replacement for batteries in portable applications such as cellular phones, personal Digital Assistants (PDAs), digital cameras and laptop ... See full document
9
Use of Finite Element Method as a Simulation Technique in the Prediction of Membrane Resistance in Polymer Electrolyte Membrane for Fuel Cell Operations
... permeability from the concentration of hydrogen ion with ...the membrane will perform better when it is fully hydrated rather than partially hydrated ...thinnest membrane will produce the lowest ... See full document
9
Current Density Maximization in Palladium-Based Gas Diffusion Electrode in Proton Exchange Membrane Fuel Cell
... performance loss can be noticed in comparison to 56 and 57 % M.I., which can result from losses by mass transport. However, MEAs with 59 % M.I. presented a quite different behavior, with a broad range of ... See full document
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