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Carbon Embedding of Pt Cluster Superlattices Templated by Hexagonal Boron Nitride on Ir(111)

Hartl, Tobias ; Will, Moritz ; Bampoulis, Pantelis ; Herrmann, Daniel ; Valerius, Philipp ; Herbig, Charlotte ; Boix de la Cruz, Virginia ; Lacovig, Paolo ; Vonk, Vedran and Chung, Simon , et al. (2021) In Journal of Physical Chemistry C 125(42). p.23435-23444
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 moiré 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... (More)

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 moiré 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.

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organization
publishing date
type
Contribution to journal
publication status
published
subject
in
Journal of Physical Chemistry C
volume
125
issue
42
pages
10 pages
publisher
The American Chemical Society (ACS)
external identifiers
  • scopus:85118776586
ISSN
1932-7447
DOI
10.1021/acs.jpcc.1c06829
language
English
LU publication?
yes
additional info
Publisher Copyright: © 2021 American Chemical Society
id
4bb855f0-e9b3-4776-8ac6-89fc29f05177
date added to LUP
2021-11-30 21:34:53
date last changed
2025-04-04 15:09:08
@article{4bb855f0-e9b3-4776-8ac6-89fc29f05177,
  abstract     = {{<p>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 moiré 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.</p>}},
  author       = {{Hartl, Tobias and Will, Moritz and Bampoulis, Pantelis and Herrmann, Daniel and Valerius, Philipp and Herbig, Charlotte and Boix de la Cruz, Virginia and Lacovig, Paolo and Vonk, Vedran and Chung, Simon and Stierle, Andreas and Lizzit, Silvano and Knudsen, Jan and Michely, Thomas}},
  issn         = {{1932-7447}},
  language     = {{eng}},
  month        = {{10}},
  number       = {{42}},
  pages        = {{23435--23444}},
  publisher    = {{The American Chemical Society (ACS)}},
  series       = {{Journal of Physical Chemistry C}},
  title        = {{Carbon Embedding of Pt Cluster Superlattices Templated by Hexagonal Boron Nitride on Ir(111)}},
  url          = {{http://dx.doi.org/10.1021/acs.jpcc.1c06829}},
  doi          = {{10.1021/acs.jpcc.1c06829}},
  volume       = {{125}},
  year         = {{2021}},
}