Membrane And Catalyst Composite For Membrane Electrode Assembly
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United States of America Patent
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Issued Date -
May 17, 2012
app pub date -
May 12, 2010
filing date -
May 12, 2009
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Abandoned
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Abstract
A membrane and catalyst composite includes an ion-conducting membrane having a surface for the passage of ions, and having a near boundary layer that includes the surface and extends a distance into the membrane. A layer of electrocatalyst particles are embedded in the near boundary layer of the membrane to produce an electrode. The electrode has a porosity that allows the flow of gas through the electrode, and it has a surface roughness that increases the catalytically-active area of the electrode.
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