TY - JOUR
T1 - Carbon Embedding of Pt Cluster Superlattices Templated by Hexagonal Boron Nitride on Ir(111)
AU - Hartl, Tobias
AU - Will, Moritz
AU - Bampoulis, Pantelis
AU - Herrmann, Daniel
AU - Valerius, Philipp
AU - Herbig, Charlotte
AU - Boix de la Cruz, Virginia
AU - Lacovig, Paolo
AU - Vonk, Vedran
AU - Chung, Simon
AU - Stierle, Andreas
AU - Lizzit, Silvano
AU - Knudsen, Jan
AU - Michely, Thomas
N1 - Funding Information:
This work was funded by the Deutsche Forschungsgemeinschaft (DFG, German Research Foundation) within the project “Cluster Superlattice Membranes” (project no. 452340798). P.B. gratefully acknowledges the financial support from the Alexander von Humboldt Foundation. V.B. and J.K. are grateful for the financial support from the Swedish Research Council Grant 2017-04840 and from the Crafoord Foundation.
Publisher Copyright:
© 2021 American Chemical Society
PY - 2021/10/28
Y1 - 2021/10/28
N2 - 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.
AB - 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.
UR - http://www.scopus.com/inward/record.url?scp=85118776586&partnerID=8YFLogxK
U2 - 10.1021/acs.jpcc.1c06829
DO - 10.1021/acs.jpcc.1c06829
M3 - Article
AN - SCOPUS:85118776586
VL - 125
SP - 23435
EP - 23444
JO - Journal of physical chemistry C
JF - Journal of physical chemistry C
SN - 1932-7447
IS - 42
ER -