Suresh, G.Sodaye, S.Scindia, Y. M.Pandey, A. K.Goswami, A.2010-01-072010-01-072007http://hdl.handle.net/123456789/15956265 bytestext/htmlenSelf-diffusion coefficientCounterionsNafion-117Polymer volume fractionTortuosity factorElectrostatic interactionsStudy on physical and electrostatic interactions of counterions in poly(perfluorosulfonic) acid matrix: Characterization of diffusion properties of membrane using radiotracersArticle