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Proton Conductivity of a Fuel Cell|Membrane with Nanoscale Resolution

Aleksandrova, Elena and Hiesgen, Renate and Dirk, Eberhard and Friedrich, K. Andreas and Kaz, Till and Roduner, Emil (2007) Proton Conductivity of a Fuel Cell|Membrane with Nanoscale Resolution. ChemPhysChem, 8 (4), pp. 519-522. WILEY-VCH Verlag GmbH. DOI: 10.1002/cphc.200600704

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The present work demonstrates that EC-AFM is a very useful new tool for identification and spatially resolved characterization of proton conductivity at the membrane surface in comparison with topography, however it does not provide insight into the 3D pore structure within the membrane. The results are consistent with those of conventional macroscopic measurements, confirming the reliability of the method. It will allow careful analysis of the homogeneity, the nature and the consequences of microphase separation as well as the effect of humidity on novel alternative membranes, and it will thus be essential for tailored developments of new materials for fuel-cell membranes. The present initial work is followed up with further experiments which provide a more complete understanding of the proton conductivity of the polymers, determine the influence of relative humidity on the size of conductive regions and investigate the reproducibility of the results.

Item URL in elib:https://elib.dlr.de/51581/
Document Type:Article
Title:Proton Conductivity of a Fuel Cell|Membrane with Nanoscale Resolution
AuthorsInstitution or Email of AuthorsAuthors ORCID iD
Aleksandrova, ElenaUniversität StuttgartUNSPECIFIED
Hiesgen, RenateHochschule EsslingenUNSPECIFIED
Dirk, EberhardHochschule EsslingenUNSPECIFIED
Roduner, EmilUniversität StuttgartUNSPECIFIED
Date:2 February 2007
Journal or Publication Title:ChemPhysChem
Open Access:No
Gold Open Access:No
In ISI Web of Science:No
DOI :10.1002/cphc.200600704
Page Range:pp. 519-522
Publisher:WILEY-VCH Verlag GmbH
Keywords:electrochemistry, fuel cell, membranes, proton conducting materials, scanning probe microscopy
HGF - Research field:Energy
HGF - Program:Efficient Energy Conversion (old)
HGF - Program Themes:E BZ - Fuel cells (old)
DLR - Research area:Energy
DLR - Program:E BZ - Fuel cells
DLR - Research theme (Project):E - Membran-Brennstoffzellen (old)
Location: Stuttgart
Institutes and Institutions:Institute of Engineering Thermodynamics > Electrochemical Energy Technology
Deposited By: Friedrich, Prof.Dr. Kaspar Andreas
Deposited On:15 Oct 2007
Last Modified:12 Dec 2013 20:28

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