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@INPROCEEDINGS{Maksumov:1020970,
author = {Maksumov, Muzaffar and Kaus, Anton and Teng, Zhenjie and
Gunkel, Felix and Kleiner, Karin and Hausen, Florian},
title = {{F}riction {F}orce {M}icroscopy as a tool to investigate
(electro)catalytic processes at surfaces},
reportid = {FZJ-2024-00430},
year = {2023},
abstract = {Friction Force Microscopy as a tool to investigate
(electro)catalyticprocesses at surfacesM.Maksumov1,2, A.
Kaus2,3, Z. Teng4, K. Kleiner4, F. Gunkel3, F.
Hausen1,21Forschungszentrum Jülich, IEK-9, 52428 Jülich,
Germany2RWTH Aachen University, IPC, Landoltweg 2, 52065
Aachen, Germany3Forschungszentrum Jülich, PGI-7, 52428
Jülich, Germany4University of Münster, MEET, Correnstraße
46, 48149 Münster,
Germanym.maksumov@fz-juelich.def.hausen@fz-juelich.deA
thorough understanding of (electro)catalytic surface
transformations under dynamic reaction conditions is of
utmost importance for a knowledge-based catalyst design.
Friction Force Microscopy (FFM) as an atomic force
microscopy based technique is capable to obtain materials
specific information in addition to electrical and
structural properties of catalysts in liquid media and under
electrochemical conditions. This is especially relevant as
surface transitions at early catalytic activity are subtle
and might be easily overseen by pure topography mapping.It
is the objective of this work to demonstrate the
capabilities of FFM for investigating (electro)catalysts. It
has been shown earlier that the frictional behavior of a
bare metal differs significantly from its
oxy/hydroxy-terminated surface under electrochemical
conditions.The new results on combined electrochemical and
frictional experiments on well-defined epitaxial perovskite
oxide structures in aqueous liquids are illustrated. This
approach represents the first application of these technique
with respect to (electro)catalysis. Simultaneously recorded
cyclic voltammograms and lateral forces, so-called
frictograms, allow to correlate subtle and local surface
transformations and the applied potential precisely.In
conclusion, FFM represents a versatile new operando
technique to investigate (electro)catalytic reactions under
dynamic conditions on a local scale with high sensitivity to
materials and structural changes.},
month = {Sep},
date = {2023-09-18},
organization = {Advanced Ceramics and Applications XI,
Belgrade (Serbia), 18 Sep 2023 - 20 Sep
2023},
subtyp = {Invited},
cin = {IEK-9 / PGI-7},
cid = {I:(DE-Juel1)IEK-9-20110218 / I:(DE-Juel1)PGI-7-20110106},
pnm = {1223 - Batteries in Application (POF4-122) / DFG project
493705276 - Kontrolle des Degradationsverhaltens von
perowskitischen OER-Katalysatoren unter dynamischen
Operationsbedingungen durch operando-Charakterisierung und
systematischer Variation der d-Orbital-Bandstruktur
(493705276)},
pid = {G:(DE-HGF)POF4-1223 / G:(GEPRIS)493705276},
typ = {PUB:(DE-HGF)6},
url = {https://juser.fz-juelich.de/record/1020970},
}