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Diagram of a PEM fuel cell. Proton-exchange membrane fuel cells (PEMFC), also known as polymer electrolyte membrane (PEM) fuel cells, are a type of fuel cell being developed mainly for transport applications, as well as for stationary fuel-cell applications and portable fuel-cell applications. Their distinguishing features include lower ...
Proton exchange membrane (PEM) electrolysis is the electrolysis of water in a cell equipped with a solid polymer electrolyte (SPE) [3] that is responsible for the conduction of protons, separation of product gases, and electrical insulation of the electrodes. The PEM electrolyzer was introduced to overcome the issues of partial load, low ...
Date/Time Thumbnail Dimensions User Comment; current: 15:39, 23 October 2010: 508 × 570 (9 KB): Albris {{Information |Description={{en|1=Diagram of a Proton exchange membrane fuel cell}} {{it|1=Schema di una Pila a combustibile con membrana a scambio protonico}} |Source={{own}} derived from w:Image:Solid oxide fuel cell.svg and [[w:Image:Fc diagram pem
2007-07-22 12:44 Jafet 550×450× (42160 bytes) Details of a [[Proton exchange membrane fuel cell]]. Intended to replace [[:Image:Fuel_cell_still.gif|raster version]]. File size is almost two times the original GIF file. It probably needs a lot of touching up as well as optimization.
The following other wikis use this file: Usage on ca.wikipedia.org Pila de combustible de membrana d'intercanvi de protons; Usage on fa.wikipedia.org
Electro-chemical reaction Diagram of PEM MEA. A membrane electrode assembly (MEA) is an assembled stack of proton-exchange membranes (PEM) or alkali anion exchange membrane (AAEM), catalyst and flat plate electrode used in fuel cells and electrolyzers. [1] [2]
An improved generation of General Electric's PEM fuel cell was used in all subsequent Gemini missions, but was abandoned for the subsequent Apollo missions. [9] The fluorinated ionomer Nafion , which is today the most widely utilized proton-exchange membrane material, was developed by DuPont plastics chemist Walther Grot.
Whereas the common PEM fuel cell, also called Low Temperature Proton Exchange Membrane fuel cell (LT-PEM), must usually be operated with hydrogen with high purity of more than 99.9 % the HT-PEM fuel cell is less sensitive to impurities and thus is typically operated with reformate gas with hydrogen concentration of about 50 to 75 %.