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@ARTICLE{Gutknecht:462032,
author = {Gutknecht, Vivien and Walther, Benjamin and Noei, Heshmat
and Vonk, Vedran and Heller, Hauke and Stierle, Andreas and
Weller, Horst},
title = {{D}urability of {C}olloidally {S}tabilized {S}upported
{N}ickel and {N}ickel {P}latinum {N}anoparticles during
{R}edox-{C}ycling},
journal = {The journal of physical chemistry / C},
volume = {125},
number = {15},
issn = {1932-7455},
address = {Washington, DC},
publisher = {Soc.},
reportid = {PUBDB-2021-03224},
pages = {8224 - 8235},
year = {2021},
abstract = {We report on the oxidation and reduction behaviorof
colloidally stabilized Ni nanoparticles and Pt@NiPt
core−shellnanoparticles with a platinum content of $4\%.$
Thin films of bothnanoparticle systems were deposited on
yttria-stabilized zirconiasubstrates by spin-coating.
Oxidation−reduction cycles were usedto remove oxides and
organics and obtain metallic particles. Thecycling
conditions necessary to clean and reduce Pt@NiPt
core−shell nanoparticles were milder than for the Ni
nanoparticles,which also needed several cycles to burn off
residual organics.During cycling, the Ni nanoparticles lost
their initially epitaxialrelationship with the substrate and
adopted a random orientation,while no epitaxial orientation
was observable for the core−shellnanoparticles. Reasons
for this are discussed together with theinfluence of
platinum on Ni reduction. The Ni and Pt@NiPt nanoparticles
sintered during the process but retained crystallinedomain
diameters close to the original particle diameters. Our
results show that colloidally stabilized nanoparticles can
be transferredonto a technologically relevant substrate and
be reduced to metallic nanoparticles. The fabrication and
final structures are discussedas a feasible route to realize
solid oxide fuel cell anodes with tailored nickel particle
diameter},
cin = {FS-PS / FS-NL},
ddc = {530},
cid = {I:(DE-H253)FS-PS-20131107 / I:(DE-H253)FS-NL-20120731},
pnm = {632 - Materials – Quantum, Complex and Functional
Materials (POF4-632) / SFB 986 A07 - Adsorption organischer
Säuren auf Oxidoberflächen und Nanostrukturen (A07)
(318017425) / SFB 986 A01 - Oberflächenmodifizierte
Nanokristalle: Bausteine für hierarchisch strukturierte
Hochleistungswerkstoffe (A01) (221132716)},
pid = {G:(DE-HGF)POF4-632 / G:(GEPRIS)318017425 /
G:(GEPRIS)221132716},
experiment = {EXP:(DE-H253)Nanolab-02-20150101 /
EXP:(DE-H253)Nanolab-03-20150101},
typ = {PUB:(DE-HGF)16},
UT = {WOS:000644438400021},
doi = {10.1021/acs.jpcc.1c00762},
url = {https://bib-pubdb1.desy.de/record/462032},
}