Universität zu Köln

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:	Creators Email ORCID ORCID Put Code Hartl, Tobias UNSPECIFIED UNSPECIFIED UNSPECIFIED Will, Moritz UNSPECIFIED UNSPECIFIED UNSPECIFIED Bampoulis, Pantelis UNSPECIFIED orcid.org/0000-0002-2347-5223 UNSPECIFIED Herrmann, Daniel UNSPECIFIED UNSPECIFIED UNSPECIFIED Valerius, Philipp UNSPECIFIED UNSPECIFIED UNSPECIFIED Herbig, Charlotte UNSPECIFIED UNSPECIFIED UNSPECIFIED de la Cruz, Virginia Boix UNSPECIFIED UNSPECIFIED UNSPECIFIED Lacovig, Paolo UNSPECIFIED UNSPECIFIED UNSPECIFIED Vonk, Vedran UNSPECIFIED UNSPECIFIED UNSPECIFIED Chung, Simon UNSPECIFIED orcid.org/0000-0001-8087-8793 UNSPECIFIED Stierle, Andreas UNSPECIFIED UNSPECIFIED UNSPECIFIED Lizzit, Silvano UNSPECIFIED UNSPECIFIED UNSPECIFIED Knudsen, Jan UNSPECIFIED UNSPECIFIED UNSPECIFIED Michely, Thomas UNSPECIFIED UNSPECIFIED UNSPECIFIED
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:	Keywords Language GROWTH; GRAPHENE; ARRAYS; FILMS; XPS Multiple languages Chemistry, Physical; Nanoscience & Nanotechnology; Materials Science, Multidisciplinary Multiple languages
URI:	http://kups.ub.uni-koeln.de/id/eprint/59570