Home > Publications database > Spectro-Microscopy of Individual Pt–Rh Core–Shell Nanoparticles during Competing Oxidation and Alloying > print

001     620065
005     20251014114614.0
024 7 _ |a 10.1021/acsnano.5c07668
|2 doi
024 7 _ |a 1936-0851
|2 ISSN
024 7 _ |a 1936-086X
|2 ISSN
024 7 _ |a 10.3204/PUBDB-2025-00003
|2 datacite_doi
024 7 _ |a altmetric:181291639
|2 altmetric
024 7 _ |a pmid:40736140
|2 pmid
024 7 _ |a openalex:W4412741690
|2 openalex
037 _ _ |a PUBDB-2025-00003
041 _ _ |a English
082 _ _ |a 540
100 1 _ |a Dwivedi, Jagrati
|0 P:(DE-H253)PIP1098321
|b 0
|e Corresponding author
245 _ _ |a Spectro-Microscopy of Individual Pt–Rh Core–Shell Nanoparticles during Competing Oxidation and Alloying
260 _ _ |a Washington, DC
|c 2025
|b Soc.
336 7 _ |a article
|2 DRIVER
336 7 _ |a Output Types/Journal article
|2 DataCite
336 7 _ |a Journal Article
|b journal
|m journal
|0 PUB:(DE-HGF)16
|s 1757491650_681336
|2 PUB:(DE-HGF)
336 7 _ |a ARTICLE
|2 BibTeX
336 7 _ |a JOURNAL_ARTICLE
|2 ORCID
336 7 _ |a Journal Article
|0 0
|2 EndNote
520 _ _ |a The surface chemical composition of supported single Pt-Rh core-shell nanoparticles was studied to understand the Rh behavior in oxidizing and reducing gas environments using spectro-microscopy with high spatial resolution. We combined in situ X-ray photoemission electron microscopy with ex situ scanning electron-, atomic force- and scanning Auger-microscopy to distinguish Rh oxidation-reduction, dewetting-sintering and alloying-segregation during the course of the experiment. A more than 20% higher Rh 3d$_{5/2}$ oxide to metal photoemission intensity ratio for the Rh layer on top of the Pt-core was found as compared to the bare strontium titanate (STO) oxide catalyst support in close vicinity, where Rh/RhO$_x$ nanoparticles are forming. At elevated temperatures, Rh diffuses into the Pt particle, and this alloying at the Pt metal surface competes with the Rh oxidation, whereas the Rh/RhO$_x$ nanoparticles on the STO support are observed to sinter under identical oxidizing and temperature environments. A nanoparticle facet dependent analysis of selected Pt-core nanoparticles suggests that Rh oxidation is most advanced on a small nanoparticle with a low coordination top facet that we indexed by electron back scatter diffraction, demonstrating the strength of our correlative approach.
536 _ _ |a 632 - Materials – Quantum, Complex and Functional Materials (POF4-632)
|0 G:(DE-HGF)POF4-632
|c POF4-632
|f POF IV
|x 0
536 _ _ |a NEP - Nanoscience Foundries and Fine Analysis - Europe|PILOT (101007417)
|0 G:(EU-Grant)101007417
|c 101007417
|f H2020-INFRAIA-2020-1
|x 1
536 _ _ |a DFG project G:(GEPRIS)390540038 - EXC 2008: Unifying Systems in Catalysis "UniSysCat" (390540038)
|0 G:(GEPRIS)390540038
|c 390540038
|x 2
588 _ _ |a Dataset connected to CrossRef, Journals: bib-pubdb1.desy.de
693 _ _ |a Nanolab
|e DESY NanoLab: Microscopy
|1 EXP:(DE-H253)DESY-NanoLab-20150101
|0 EXP:(DE-H253)Nanolab-04-20150101
|5 EXP:(DE-H253)Nanolab-04-20150101
|x 0
693 _ _ |a Nanolab
|e DESY NanoLab: Sample Preparation
|1 EXP:(DE-H253)DESY-NanoLab-20150101
|0 EXP:(DE-H253)Nanolab-01-20150101
|5 EXP:(DE-H253)Nanolab-01-20150101
|x 1
700 1 _ |a Bachmann, Lydia J.
|0 0000-0002-5022-5027
|b 1
700 1 _ |a Jeromin, Arno
|b 2
700 1 _ |a Kulkarni, Satishkumar
|b 3
700 1 _ |a Noei, Heshmat
|0 P:(DE-H253)PIP1018647
|b 4
700 1 _ |a Tănase, Liviu C.
|0 0000-0002-4177-5676
|b 5
700 1 _ |a Tiwari, Aarti
|0 0000-0002-8295-9420
|b 6
700 1 _ |a de Souza Caldas, Lucas
|0 0000-0002-5499-4712
|b 7
700 1 _ |a Schmidt, Thomas
|0 0000-0003-4389-2080
|b 8
700 1 _ |a Cuenya, Beatriz Roldan
|0 0000-0002-8025-307X
|b 9
700 1 _ |a Stierle, Andreas
|0 P:(DE-H253)PIP1012873
|b 10
700 1 _ |a Keller, Thomas F.
|0 P:(DE-H253)PIP1019138
|b 11
|e Corresponding author
773 _ _ |a 10.1021/acsnano.5c07668
|g Vol. 19, no. 31, p. 28516 - 28529
|0 PERI:(DE-600)2383064-5
|n 31
|p 28516 - 28529
|t ACS nano
|v 19
|y 2025
|x 1936-0851
856 4 _ |u https://bib-pubdb1.desy.de/record/620065/files/HTML-Approval_of_scientific_publication.html
856 4 _ |u https://bib-pubdb1.desy.de/record/620065/files/Institution%20Portal.pdf
856 4 _ |u https://bib-pubdb1.desy.de/record/620065/files/PDF-Approval_of_scientific_publication.pdf
856 4 _ |u https://bib-pubdb1.desy.de/record/620065/files/Institution%20Portal.pdf?subformat=pdfa
|x pdfa
856 4 _ |u https://bib-pubdb1.desy.de/record/620065/files/Manuscript%20pdf.pdf
|y OpenAccess
856 4 _ |u https://bib-pubdb1.desy.de/record/620065/files/Manuscript%20pdf.pdf?subformat=pdfa
|x pdfa
|y OpenAccess
909 C O |o oai:bib-pubdb1.desy.de:620065
|p openaire
|p open_access
|p OpenAPC
|p driver
|p VDB
|p ec_fundedresources
|p openCost
|p dnbdelivery
910 1 _ |a Deutsches Elektronen-Synchrotron
|0 I:(DE-588b)2008985-5
|k DESY
|b 0
|6 P:(DE-H253)PIP1098321
910 1 _ |a External Institute
|0 I:(DE-HGF)0
|k Extern
|b 0
|6 P:(DE-H253)PIP1098321
910 1 _ |a Deutsches Elektronen-Synchrotron
|0 I:(DE-588b)2008985-5
|k DESY
|b 4
|6 P:(DE-H253)PIP1018647
910 1 _ |a Deutsches Elektronen-Synchrotron
|0 I:(DE-588b)2008985-5
|k DESY
|b 10
|6 P:(DE-H253)PIP1012873
910 1 _ |a European XFEL
|0 I:(DE-588)1043621512
|k XFEL.EU
|b 10
|6 P:(DE-H253)PIP1012873
910 1 _ |a Deutsches Elektronen-Synchrotron
|0 I:(DE-588b)2008985-5
|k DESY
|b 11
|6 P:(DE-H253)PIP1019138
910 1 _ |a European XFEL
|0 I:(DE-588)1043621512
|k XFEL.EU
|b 11
|6 P:(DE-H253)PIP1019138
913 1 _ |a DE-HGF
|b Forschungsbereich Materie
|l Von Materie zu Materialien und Leben
|1 G:(DE-HGF)POF4-630
|0 G:(DE-HGF)POF4-632
|3 G:(DE-HGF)POF4
|2 G:(DE-HGF)POF4-600
|4 G:(DE-HGF)POF
|v Materials – Quantum, Complex and Functional Materials
|x 0
914 1 _ |y 2025
915 _ _ |a DBCoverage
|0 StatID:(DE-HGF)0200
|2 StatID
|b SCOPUS
|d 2025-01-07
915 _ _ |a DBCoverage
|0 StatID:(DE-HGF)0300
|2 StatID
|b Medline
|d 2025-01-07
915 _ _ |a Creative Commons Attribution CC BY 4.0
|0 LIC:(DE-HGF)CCBY4
|2 HGFVOC
915 _ _ |a IF >= 15
|0 StatID:(DE-HGF)9915
|2 StatID
|b ACS NANO : 2022
|d 2025-01-07
915 _ _ |a DBCoverage
|0 StatID:(DE-HGF)1150
|2 StatID
|b Current Contents - Physical, Chemical and Earth Sciences
|d 2025-01-07
915 _ _ |a WoS
|0 StatID:(DE-HGF)0113
|2 StatID
|b Science Citation Index Expanded
|d 2025-01-07
915 _ _ |a DBCoverage
|0 StatID:(DE-HGF)0150
|2 StatID
|b Web of Science Core Collection
|d 2025-01-07
915 _ _ |a OpenAccess
|0 StatID:(DE-HGF)0510
|2 StatID
915 _ _ |a JCR
|0 StatID:(DE-HGF)0100
|2 StatID
|b ACS NANO : 2022
|d 2025-01-07
915 _ _ |a DBCoverage
|0 StatID:(DE-HGF)0160
|2 StatID
|b Essential Science Indicators
|d 2025-01-07
915 _ _ |a DBCoverage
|0 StatID:(DE-HGF)0199
|2 StatID
|b Clarivate Analytics Master Journal List
|d 2025-01-07
915 p c |a APC keys set
|2 APC
|0 PC:(DE-HGF)0000
915 p c |a Local Funding
|2 APC
|0 PC:(DE-HGF)0001
915 p c |a DFG OA Publikationskosten
|2 APC
|0 PC:(DE-HGF)0002
915 p c |a Helmholtz: American Chemical Society 01/01/2023
|2 APC
|0 PC:(DE-HGF)0122
920 1 _ |0 I:(DE-H253)FS-NL-20120731
|k FS-NL
|l Nanolab
|x 0
980 _ _ |a journal
980 _ _ |a VDB
980 _ _ |a I:(DE-H253)FS-NL-20120731
980 _ _ |a APC
980 _ _ |a UNRESTRICTED
980 1 _ |a APC
980 1 _ |a FullTexts

LibraryCollectionCLSMajorCLSMinorLanguageAuthor
Marc 21