Hartl, Tobias, Will, Moritz, Bampoulis, Pantelis ORCID: 0000-0002-2347-5223, Herrmann, Daniel, Valerius, Philipp, Herbig, Charlotte, de la Cruz, Virginia Boix, Lacovig, Paolo, Vonk, Vedran, Chung, Simon ORCID: 0000-0001-8087-8793, Stierle, Andreas, Lizzit, Silvano, Knudsen, Jan and Michely, Thomas (2021). Carbon Embedding of Pt Cluster Superlattices Templated by Hexagonal Boron Nitride on Ir(111). J. Phys. Chem. C, 125 (42). S. 23435 - 23445. WASHINGTON: AMER CHEMICAL SOC. ISSN 1932-7455

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Abstract

With the goal to delevop the fabrication of a new type of Pt-nanoparticle carbon-support electrocatalyst, we investigate the carbon embedding of Pt cluster superlattices grown on the moire of a monolayer of hexagonal boron nitride (h-BN) on Ir(111). Our combined scanning tunneling microscopy (STM) and X-ray photoelectron spectroscopy (XPS) study establishes conformal C embedding of the Pt clusters on h-BN/Ir(111) without deterioration of superlattice order, preferential and strong binding of the embedding carbon to the Pt clusters, and upon annealing the formation of a homogeneous amorphous carbon (a-C) matrix. There are indications that while the a-C matrix and the Pt clusters bind strongly to each other, upon annealing both weaken their binding to h-BN.

Item Type: Journal Article
Creators:
CreatorsEmailORCIDORCID Put Code
Hartl, TobiasUNSPECIFIEDUNSPECIFIEDUNSPECIFIED
Will, MoritzUNSPECIFIEDUNSPECIFIEDUNSPECIFIED
Bampoulis, PantelisUNSPECIFIEDorcid.org/0000-0002-2347-5223UNSPECIFIED
Herrmann, DanielUNSPECIFIEDUNSPECIFIEDUNSPECIFIED
Valerius, PhilippUNSPECIFIEDUNSPECIFIEDUNSPECIFIED
Herbig, CharlotteUNSPECIFIEDUNSPECIFIEDUNSPECIFIED
de la Cruz, Virginia BoixUNSPECIFIEDUNSPECIFIEDUNSPECIFIED
Lacovig, PaoloUNSPECIFIEDUNSPECIFIEDUNSPECIFIED
Vonk, VedranUNSPECIFIEDUNSPECIFIEDUNSPECIFIED
Chung, SimonUNSPECIFIEDorcid.org/0000-0001-8087-8793UNSPECIFIED
Stierle, AndreasUNSPECIFIEDUNSPECIFIEDUNSPECIFIED
Lizzit, SilvanoUNSPECIFIEDUNSPECIFIEDUNSPECIFIED
Knudsen, JanUNSPECIFIEDUNSPECIFIEDUNSPECIFIED
Michely, ThomasUNSPECIFIEDUNSPECIFIEDUNSPECIFIED
URN: urn:nbn:de:hbz:38-595700
DOI: 10.1021/acs.jpcc.1c06829
Journal or Publication Title: J. Phys. Chem. C
Volume: 125
Number: 42
Page Range: S. 23435 - 23445
Date: 2021
Publisher: AMER CHEMICAL SOC
Place of Publication: WASHINGTON
ISSN: 1932-7455
Language: English
Faculty: Unspecified
Divisions: Unspecified
Subjects: no entry
Uncontrolled Keywords:
KeywordsLanguage
GROWTH; GRAPHENE; ARRAYS; FILMS; XPSMultiple languages
Chemistry, Physical; Nanoscience & Nanotechnology; Materials Science, MultidisciplinaryMultiple languages
URI: http://kups.ub.uni-koeln.de/id/eprint/59570

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