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Atomic Force Microscopy

Hiesgen, Renate and Friedrich, K. Andreas (2011) Atomic Force Microscopy. In: PEM Fuel Cell Diagnostic Tools CRC Press Taylor & Francis Group. pp. 395-422. ISBN 978-1-4398-3919-5.

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Abstract

Although atomic force microscopy (AFM) is an ex situ technique, the measuring conditions can be chosen rather close to operating conditions in a PEM fuel cell. The flexibility in the analyzed areas allows an overview of the sample as well as a highly resolved measurement on the nanometer scale. The signals recorded by AFM are on the one hand based on force interaction of the AFM tip with the sample surface, thereby delivering, that is, local friction, adhesion, stiffness, and energy loss. On the other hand, electrical properties such as electronic conductivity, ionic conductivity as well as surface potential, electrostatic force or reactivity can be retrieved. The AFM works in ambient air and in a humid or liquid environment, including an electrochemical cell. Hydrophilic and hydrophobic surface properties are especially important for water management in a PEM fuel cell and degradation processes can be followed by a comparison of samples in a fresh state and after operation.

Item URL in elib:https://elib.dlr.de/71444/
Document Type:Contribution to a Collection
Title:Atomic Force Microscopy
Authors:
AuthorsInstitution or Email of AuthorsAuthors ORCID iD
Hiesgen, Renaterenate.hiesgen (at) hs-esslingen.deUNSPECIFIED
Friedrich, K. Andreasandreas.friedrich (at) dlr.deUNSPECIFIED
Date:September 2011
Journal or Publication Title:PEM Fuel Cell Diagnostic Tools
Refereed publication:No
Open Access:No
Gold Open Access:No
In SCOPUS:No
In ISI Web of Science:No
Page Range:pp. 395-422
Editors:
EditorsEmail
wang, HaijiangHaijiang.Wang@nrc-cnrc.gc.ca
Yuan, Xia-ZiYuan, Xiao-Zi <Xiao-Zi.Yuan@nrc-cnrc.gc.ca>
Li, Huihui.li@nrc-cnrc.gc.ca
Publisher:CRC Press Taylor & Francis Group
ISBN:978-1-4398-3919-5
Status:Published
Keywords:AFM, atomic force microscopy, fuel cell components
HGF - Research field:Energy
HGF - Program:Efficient Energy Conversion (old)
HGF - Program Themes:E EV - Energy process technology (old)
DLR - Research area:Energy
DLR - Program:E EV - Energy process technology
DLR - Research theme (Project):E - Elektrochemische Prozesse (old)
Location: Stuttgart
Institutes and Institutions:Institute of Engineering Thermodynamics > Electrochemical Energy Technology
Deposited By: Friedrich, Prof.Dr. Kaspar Andreas
Deposited On:07 Nov 2011 16:12
Last Modified:07 Nov 2011 16:12

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