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Time/Space‐Resolved Studies of the Nafion Membrane Hydration Profile in a Running Fuel Cell
Author(s) -
Albertini Valerio Rossi,
Paci Barbara,
Nobili Francesco,
Marassi Roberto,
Di Michiel Marco
Publication year - 2009
Publication title -
advanced materials
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 10.707
H-Index - 527
eISSN - 1521-4095
pISSN - 0935-9648
DOI - 10.1002/adma.200801652
Subject(s) - proton exchange membrane fuel cell , materials science , nafion , membrane , fuel cells , diffraction , synchrotron radiation , chemical engineering , synchrotron , optics , electrochemistry , electrode , chemistry , biochemistry , physics , engineering
The hydration profile of proton‐exchange membranes (PEM) in running fuel cells (FC) are obtained through an original method that employs very‐high‐energy synchrotron‐radiation X‐ray diffraction in space/time‐resolved measurements. Determining the amount and spatial distribution of water in the polymeric membrane of PEMFCs under working conditions is of utmost importance in PEMFC technology, since FC performances are strongly dependent on PEM hydration.