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Support-facet-dependent morphology of small Pt particles on ceria

Henrik Eliasson Orcid Logo, Yubiao Niu, Richard Palmer Orcid Logo, Henrik Grönbeck Orcid Logo, Rolf Erni Orcid Logo

Nanoscale, Volume: 15, Issue: 47, Pages: 19091 - 19098

Swansea University Author: Richard Palmer Orcid Logo

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DOI (Published version): 10.1039/d3nr04701f

Abstract

Direct atomic scale information on how the structure of supported nanoparticles is affected by the metal–support interaction is rare. Using scanning transmission electron microscopy, we provide direct evidence of a facet-dependent support interaction for Pt nanoparticles on CeO2, governing the dimen...

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Published in: Nanoscale
ISSN: 2040-3364 2040-3372
Published: Royal Society of Chemistry (RSC) 2023
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URI: https://cronfa.swan.ac.uk/Record/cronfa65125
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spelling v2 65125 2023-11-27 Support-facet-dependent morphology of small Pt particles on ceria 6ae369618efc7424d9774377536ea519 0000-0001-8728-8083 Richard Palmer Richard Palmer true false 2023-11-27 MECH Direct atomic scale information on how the structure of supported nanoparticles is affected by the metal–support interaction is rare. Using scanning transmission electron microscopy, we provide direct evidence of a facet-dependent support interaction for Pt nanoparticles on CeO2, governing the dimensionality of small platinum particles. Our findings indicate that particles consisting of less than ∼130 atoms prefer a 3D shape on CeO2(111) facets, while 2D raft structures are favored on CeO2(100) facets. Measurements of stationary particles on both surface facets are supplemented by time resolved measurements following a single particle with atomic resolution as it migrates from CeO2(111) to CeO2(100), undergoing a dimensionality change from 3D to 2D. The intricate transformation mechanism reveals how the 3D particle disassembles and completely wets a neighboring CeO2(100) facet. Density functional theory calculations confirm the structure-trend and reveal the thermodynamic driving force for the migration of small particles. Knowledge of the presented metal–support interactions is crucial to establish structure–function relationships in a range of applications based on supported nanostructures. Journal Article Nanoscale 15 47 19091 19098 Royal Society of Chemistry (RSC) 2040-3364 2040-3372 21 12 2023 2023-12-21 10.1039/d3nr04701f Raw microscopy data and relaxed atomic models are available on fig share:https://figshare.com/s/b269ca52beb834f496cd. COLLEGE NANME Mechanical Engineering COLLEGE CODE MECH Swansea University Other H.E.andR.E.acknowledgefundingfromtheSwissNational Science Foundation (200021_196381). H. G. acknowledges fundingfromtheSwedishResearchCouncil (2020-05191)and computational time through a SNIC grant. R. E. P. and Y.N.thanktheWelshGovernmentfortheirfinancialsupport. 2024-03-07T14:08:10.5464423 2023-11-27T10:08:09.4200658 Faculty of Science and Engineering School of Aerospace, Civil, Electrical, General and Mechanical Engineering - Mechanical Engineering Henrik Eliasson 0000-0003-2975-0334 1 Yubiao Niu 2 Richard Palmer 0000-0001-8728-8083 3 Henrik Grönbeck 0000-0002-8709-2889 4 Rolf Erni 0000-0003-2391-5943 5 65125__29115__676225ad8bc341c1b60ea9cab02f6492.pdf 65125_Richard Palmer.pdf 2023-11-27T10:13:21.8294607 Output 3844827 application/pdf Version of Record true This article is licensed under a Creative Commons Attribution-NonCommercial 3.0 Unported Licence. true eng https://creativecommons.org/licenses/by/4.0/
title Support-facet-dependent morphology of small Pt particles on ceria
spellingShingle Support-facet-dependent morphology of small Pt particles on ceria
Richard Palmer
title_short Support-facet-dependent morphology of small Pt particles on ceria
title_full Support-facet-dependent morphology of small Pt particles on ceria
title_fullStr Support-facet-dependent morphology of small Pt particles on ceria
title_full_unstemmed Support-facet-dependent morphology of small Pt particles on ceria
title_sort Support-facet-dependent morphology of small Pt particles on ceria
author_id_str_mv 6ae369618efc7424d9774377536ea519
author_id_fullname_str_mv 6ae369618efc7424d9774377536ea519_***_Richard Palmer
author Richard Palmer
author2 Henrik Eliasson
Yubiao Niu
Richard Palmer
Henrik Grönbeck
Rolf Erni
format Journal article
container_title Nanoscale
container_volume 15
container_issue 47
container_start_page 19091
publishDate 2023
institution Swansea University
issn 2040-3364
2040-3372
doi_str_mv 10.1039/d3nr04701f
publisher Royal Society of Chemistry (RSC)
college_str Faculty of Science and Engineering
hierarchytype
hierarchy_top_id facultyofscienceandengineering
hierarchy_top_title Faculty of Science and Engineering
hierarchy_parent_id facultyofscienceandengineering
hierarchy_parent_title Faculty of Science and Engineering
department_str School of Aerospace, Civil, Electrical, General and Mechanical Engineering - Mechanical Engineering{{{_:::_}}}Faculty of Science and Engineering{{{_:::_}}}School of Aerospace, Civil, Electrical, General and Mechanical Engineering - Mechanical Engineering
document_store_str 1
active_str 0
description Direct atomic scale information on how the structure of supported nanoparticles is affected by the metal–support interaction is rare. Using scanning transmission electron microscopy, we provide direct evidence of a facet-dependent support interaction for Pt nanoparticles on CeO2, governing the dimensionality of small platinum particles. Our findings indicate that particles consisting of less than ∼130 atoms prefer a 3D shape on CeO2(111) facets, while 2D raft structures are favored on CeO2(100) facets. Measurements of stationary particles on both surface facets are supplemented by time resolved measurements following a single particle with atomic resolution as it migrates from CeO2(111) to CeO2(100), undergoing a dimensionality change from 3D to 2D. The intricate transformation mechanism reveals how the 3D particle disassembles and completely wets a neighboring CeO2(100) facet. Density functional theory calculations confirm the structure-trend and reveal the thermodynamic driving force for the migration of small particles. Knowledge of the presented metal–support interactions is crucial to establish structure–function relationships in a range of applications based on supported nanostructures.
published_date 2023-12-21T14:08:07Z
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score 11.012678

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