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@ARTICLE{Grasmik:858613,
author = {Grasmik, V. and Rurainsky, C. and Loza, Kateryna and Evers,
M. V. and Prymak, O. and Heggen, Marc and Tschulik, K. and
Epple, M.},
title = {{D}eciphering the surface composition and the internal
structure of alloyed silver-gold nanoparticles},
journal = {Chemistry - a European journal},
volume = {24},
number = {36},
issn = {0947-6539},
address = {Weinheim},
publisher = {Wiley-VCH},
reportid = {FZJ-2018-07473},
pages = {9051 - 9060},
year = {2018},
abstract = {Spherical bimetallic AgAu nanoparticles in the molar ratios
30:70, 50:50, and 70:30 with diameters of 30 to 40 nm were
analyzed together with pure silver and gold nanoparticles of
the same size. Dynamic light scattering (DLS) and
differential centrifugal sedimentation (DCS) were used for
size determination. Cyclic voltammetry (CV) was used to
determine the nanoalloy composition, together with atomic
absorption spectroscopy (AAS), energy‐dispersive X‐ray
spectroscopy (EDX) and ultraviolet‐visible (UV/Vis)
spectroscopy. Underpotential deposition (UPD) of lead (Pb)
on the particle surface gave information about its spatial
elemental distribution and surface area. Scanning electron
microscopy (SEM), transmission electron microscopy (TEM),
and atomic force microscopy (AFM) were applied to study the
shape and the size of the nanoparticles. X‐ray powder
diffraction gave the crystallite size and the microstrain.
The particles form a solid solution (alloy) with an
enrichment of silver on the nanoparticle surface, including
some silver‐rich patches. UPD indicated that the surface
only consists of silver atoms.},
cin = {PGI-5},
ddc = {540},
cid = {I:(DE-Juel1)PGI-5-20110106},
pnm = {143 - Controlling Configuration-Based Phenomena (POF3-143)},
pid = {G:(DE-HGF)POF3-143},
typ = {PUB:(DE-HGF)16},
pubmed = {pmid:29522654},
UT = {WOS:000436245300016},
doi = {10.1002/chem.201800579},
url = {https://juser.fz-juelich.de/record/858613},
}