proton exchange membrane fuel cells
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3
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membranes
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2
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proton exchange membranes
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2
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sorption
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2
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water retention
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2
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water sorption
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2
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atmospheric humidity
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1
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block copolymers
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1
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block ratio
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1
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calendering
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1
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carbon
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1
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catalysis
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1
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catalyst layers
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1
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catalysts
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1
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cathodes
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1
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chemistry
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1
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common knowledge
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1
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composite membranes
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1
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degree of sulfonation
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1
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electric power supplies
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1
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electrochemical properties
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1
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electrochemistry
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1
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fuel cells
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1
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fuel-cell materials
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1
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hexafluoropropylene
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1
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high water
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1
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host matrices
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1
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hydrophilic domains
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1
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hydrophilic surfaces
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1
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hydrophilicity
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1
)