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

doi:10.1021/acs.jpcc.1c06829

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

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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 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 language	English
Pages (from-to)	23435-23444
Number of pages	10
Journal	The Journal of physical chemistry C
Volume	125
Issue number	42
Early online date	19 Oct 2021
DOIs	https://doi.org/10.1021/acs.jpcc.1c06829
Publication status	Published - 28 Oct 2021

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2022 OA procedure

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Hartl, T., Will, M., Bampoulis, P., Herrmann, D., Valerius, P., Herbig, C., Boix de la Cruz, V., Lacovig, P., Vonk, V., Chung, S., Stierle, A., Lizzit, S., Knudsen, J., & Michely, T. (2021). Carbon Embedding of Pt Cluster Superlattices Templated by Hexagonal Boron Nitride on Ir(111). The Journal of physical chemistry C, 125(42), 23435-23444. https://doi.org/10.1021/acs.jpcc.1c06829

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

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 moir{\'e} 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.",

keywords = "2022 OA procedure",

author = "Tobias Hartl and Moritz Will and Pantelis Bampoulis and Daniel Herrmann and Philipp Valerius and Charlotte Herbig and {Boix de la Cruz}, Virginia and Paolo Lacovig and Vedran Vonk and Simon Chung and Andreas Stierle and Silvano Lizzit and Jan Knudsen and Thomas Michely",

note = "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: {\textcopyright} 2021 American Chemical Society",

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month = oct,

day = "28",

doi = "10.1021/acs.jpcc.1c06829",

language = "English",

volume = "125",

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journal = "The Journal of physical chemistry C",

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Hartl, T, Will, M, Bampoulis, P, Herrmann, D, Valerius, P, Herbig, C, Boix de la Cruz, V, Lacovig, P, Vonk, V, Chung, S, Stierle, A, Lizzit, S, Knudsen, J & Michely, T 2021, 'Carbon Embedding of Pt Cluster Superlattices Templated by Hexagonal Boron Nitride on Ir(111)', The Journal of physical chemistry C, vol. 125, no. 42, pp. 23435-23444. https://doi.org/10.1021/acs.jpcc.1c06829

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.

KW - 2022 OA procedure

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

SN - 1932-7447

VL - 125

SP - 23435

EP - 23444

JO - The Journal of physical chemistry C

JF - The Journal of physical chemistry C

IS - 42

ER -

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

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