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Keywords: Nafion structure.png Nafion a polymeric sulfonic acid useful in fuel cells 2005-11-03 own Kebes at en wikipedia other versions Kebes Original upload log page en wikipedia Nafion_structure png Upload date User Bytes Dimensions Comment 2005-11-03 19 42 UTC Kebes 12335 bytes 400×152 <small><nowiki>I created this chemical structure image myself and hereby release it into the public domain </nowiki></small> Sulfonic acids |