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Polymer Membranes for Fuel Cells (Hardcover, 2009 ed.)
Loot Price: R1,583
Discovery Miles 15 830
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Polymer Membranes for Fuel Cells (Hardcover, 2009 ed.)
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From the late-1960's, perfluorosulfonic acid (PFSAs) ionomers have
dominated the PEM fuel cell industry as the membrane material of
choice. The "gold standard' amongst the many variations that exist
today has been, and to a great extent still is, DuPont's Nafion (R)
family of materials. However, there is significant concern in the
industry that these materials will not meet the cost, performance,
and durability requirementsnecessary to drive commercialization in
key market segments - es- cially automotive. Indeed, Honda has
already put fuel cell vehicles in the hands of real end users that
have home-grown fuel cell stack technology incorporating
hydrocarbon-based ionomers. "Polymer Membranes in Fuel Cells" takes
an in-depth look at the new chem- tries and membrane technologies
that have been developed over the years to address the concerns
associated with the materials currently in use. Unlike the PFSAs,
which were originally developed for the chlor-alkali industry, the
more recent hydrocarbon and composite materials have been developed
to meet the specific requirements of PEM Fuel Cells. Having said
this, most of the work has been based on derivatives of known
polymers, such as poly(ether-ether ketones), to ensure that the
critical requirement of low cost is met. More aggressive
operational requi- ments have also spurred the development on new
materials; for example, the need for operation at higher
temperature under low relative humidity has spawned the creation of
a plethora of new polymers with potential application in PEM Fuel
Cells.
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