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@ARTICLE{Grote:491494,
author = {Grote, Lukas and Hussak, Sarah-Alexandra and Albers, Leif
and Stachnik, Karolina and Mancini, Federica and Seyrich,
Martin and Vasylieva, Olga and Brückner, Dennis and
Lyubomirskiy, Mikhail and Schroer, Christian G. and Koziej,
Dorota},
title = {{M}ultimodal imaging of cubic ${C}u_2{O}@{A}u$ nanocage
formation via galvanic replacement using {X}-ray
ptychography and nano diffraction},
journal = {Scientific reports},
volume = {13},
number = {1},
issn = {2045-2322},
address = {[London]},
publisher = {Macmillan Publishers Limited, part of Springer Nature},
reportid = {PUBDB-2023-00186},
pages = {318},
year = {2023},
abstract = {Being able to observe the formation of multi-material
nanostructures in situ, simultaneously from a morphological
and crystallographic perspective, is a challenging task.
Yet, this is essential for the fabrication of nanomaterials
with well-controlled composition exposing the most active
crystallographic surfaces, as required for highly active
catalysts in energy applications. To demonstrate how X-ray
ptychography can be combined with scanning nanoprobe
diffraction to realize multimodal imaging, we study growing
Cu$_2$O nanocubes and their transformation into Au
nanocages. During the growth of nanocubes at a temperature
of 138 °C, we measure the crystal structure of an
individual nanoparticle and determine the presence of (100)
crystallographic facets at its surface. We subsequently
visualize the transformation of Cu$_2$O into Au nanocages by
galvanic replacement. The nanocubes interior homogeneously
dissolves while smaller Au particles grow on their surface
and later coalesce to form porous nanocages. We finally
determine the amount of radiation damage making use of the
quantitative phase images. We find that both the total
surface dose as well as the dose rate imparted by the X-ray
beam trigger additional deposition of Au onto the nanocages.
Our multimodal approach can benefit in-solution imaging of
multi-material nanostructures in many related fields.},
cin = {U HH / FS-PETRA / FS-PET-S},
ddc = {600},
cid = {$I:(DE-H253)U_HH-20120814$ / I:(DE-H253)FS-PETRA-20140814 /
I:(DE-H253)FS-PET-S-20190712},
pnm = {632 - Materials – Quantum, Complex and Functional
Materials (POF4-632) / 6G3 - PETRA III (DESY) (POF4-6G3) /
FS-Proposal: I-20190910 (I-20190910) / DFG project 194651731
- EXC 1074: Hamburger Zentrum für ultraschnelle Beobachtung
(CUI): Struktur, Dynamik und Kontrolle von Materie auf
atomarer Skala (194651731) / DFG project 390715994 - EXC
2056: CUI: Advanced Imaging of Matter (390715994)},
pid = {G:(DE-HGF)POF4-632 / G:(DE-HGF)POF4-6G3 /
G:(DE-H253)I-20190910 / G:(GEPRIS)194651731 /
G:(GEPRIS)390715994},
experiment = {EXP:(DE-H253)P-P06-20150101},
typ = {PUB:(DE-HGF)16},
pubmed = {pmid:36609430},
UT = {WOS:001031438900015},
doi = {10.1038/s41598-022-26877-6},
url = {https://bib-pubdb1.desy.de/record/491494},
}