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Proton Conductivity Study of a Fuel Cell Membrane with Nanoscale Resolution
Author(s) -
Aleksandrova Elena,
Hiesgen Renate,
Eberhard Dirk,
Friedrich K. Andreas,
Kaz Till,
Roduner Emil
Publication year - 2007
Publication title -
chemphyschem
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 1.016
H-Index - 140
eISSN - 1439-7641
pISSN - 1439-4235
DOI - 10.1002/cphc.200600704
Subject(s) - nafion , conductivity , membrane , electrode , proton , materials science , resolution (logic) , proton exchange membrane fuel cell , conductive atomic force microscopy , relative humidity , nanoscopic scale , cantilever , electrochemistry , analytical chemistry (journal) , membrane electrode assembly , nanotechnology , atomic force microscopy , chemistry , composite material , chromatography , biochemistry , physics , artificial intelligence , computer science , quantum mechanics , electrolyte , thermodynamics
Tip‐top electrode : A conductive cantilever tip that acts as an electrode permits proton conductivity measurements through a Nafion membrane with a resolution of ≈10 nm. The figure shows a spatially resolved electrochemical atomic force microscopy (EC‐AFM) image of the proton conductivity of a Nafion 112 membrane, recorded at an applied voltage of −1.55 V and a relative humidity of 35 %.