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

  • Tobias Hartl*
  • , Moritz Will
  • , Pantelis Bampoulis
  • , Daniel Herrmann
  • , Philipp Valerius
  • , Charlotte Herbig
  • , Virginia Boix de la Cruz
  • , Paolo Lacovig
  • , Vedran Vonk
  • , Simon Chung
  • , Andreas Stierle
  • , Silvano Lizzit
  • , Jan Knudsen
  • , Thomas Michely
  • *Corresponding author for this work

Research output: Contribution to journalArticleAcademicpeer-review

5 Citations (Scopus)
144 Downloads (Pure)

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 their binding to h-BN.

Original languageEnglish
Pages (from-to)23435-23444
Number of pages10
JournalThe Journal of physical chemistry C
Volume125
Issue number42
Early online date19 Oct 2021
DOIs
Publication statusPublished - 28 Oct 2021

Keywords

  • 2022 OA procedure

Fingerprint

Dive into the research topics of 'Carbon Embedding of Pt Cluster Superlattices Templated by Hexagonal Boron Nitride on Ir(111)'. Together they form a unique fingerprint.

Cite this