dc.contributor.author |
Bo, Zhenyu |
|
dc.contributor.author |
Thornburgh, Nicholas |
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dc.contributor.author |
Peng, Lingxuan |
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dc.contributor.author |
Gutierrez Moreno, Jose Julio |
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dc.contributor.author |
Nolan, Michael |
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dc.contributor.author |
Marks, Laurence D. |
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dc.contributor.author |
Notestein, Justin M. |
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dc.date.accessioned |
2019-10-31T12:57:01Z |
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dc.date.available |
2019-10-31T12:57:01Z |
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dc.date.issued |
2019 |
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dc.identifier.citation |
Bo, Z., Thornburgh, N., Peng, L., Gutierrez Moreno, J. J., Nolan, M., Marks, L. D. and Notestein, J. M. (2019) 'Direct Visualization of Independent Ta Centers Supported on 2D TiO2 Nanosheets', Nano Letters, In Press, doi: 10.1021/acs.nanolett.9b03305 |
en |
dc.identifier.startpage |
1 |
en |
dc.identifier.endpage |
15 |
en |
dc.identifier.issn |
1530-6984 |
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dc.identifier.uri |
http://hdl.handle.net/10468/8928 |
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dc.identifier.doi |
10.1021/acs.nanolett.9b03305 |
en |
dc.description.abstract |
Highly-dispersed, supported oxides are ubiquitous solid catalysts, but they can be challenging to characterize with atomic precision. Here it is shown that crystalline anatase TiO2 nanosheets (~5 nm thick) are ideal supports for imaging highly-dispersed active sites. Ta cations are deposited by several routes, and high-resolution high angle annular dark-field (HAADF) scanning transmission electron microscopy (STEM) is used to determine the location of Ta with respect to the TiO2 lattice and to quantify Ta-Ta distances. In the best case, it is shown that >80% of Ta atoms are isolated from one another, whereas other techniques are blind to this critical catalytic property or give only qualitative estimates. TiO2 nanosheets may prove to be a useful platform for other types of catalysis studies. |
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dc.description.sponsorship |
U.S. Department of Energy (Office of Science, Office of Basic Energy Science, under Award Number DOE DE-FG02-03ER15457 to the Institute for Catalysis for Energy Processes (ICEP) at Northwestern University); Northwestern University (Materials Research Center (MRSEC) on grant number DMR-112126; EPIC facility of the NUANCE Center at Northwestern University, which has received support from the Soft and Hybrid Nanotechnology Experimental (SHyNE) Resource (NSF NNCI-1542205); the MRSEC program (NSF DMR-112126) at the Materials Research Center; the International Institute for Nanotechnology (IIN); University of Illinois (JEOL JEM-ARM200CF in the Electron Microscopy Service [Research Resources Center, University of Illinois at Chicago (UIC)]); Irish Environmental Protection Agency (UisceSense project (W-2015-MS-21)); |
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dc.format.mimetype |
application/pdf |
en |
dc.language.iso |
en |
en |
dc.publisher |
American Chemical Society |
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dc.relation.uri |
https://pubs.acs.org/doi/10.1021/acs.nanolett.9b03305 |
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dc.rights |
© 2019 American Chemical Society. This document is the Accepted Manuscript version of a Published Work that appears in final form in Nano Letters, copyright © American Chemical Society after peer review and technical editing by the publisher. To access the final edited and published work see https://pubs.acs.org/doi/10.1021/acs.nanolett.9b03305 |
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dc.subject |
HAADF STEM |
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dc.subject |
Supported catalysts |
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dc.subject |
Oxides |
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dc.subject |
Microscopy |
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dc.subject |
Single atom catalysts |
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dc.title |
Direct visualization of independent Ta centers supported on 2D TiO2 nanosheets |
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dc.type |
Article (peer-reviewed) |
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dc.internal.authorcontactother |
Michael Nolan, Tyndall Theory Modelling & Design Centre, University College Cork, Cork, Ireland. +353-21-490-3000 Email: michael.nolan@tyndall.ie |
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dc.internal.availability |
Full text available |
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dc.check.info |
Access to this article is restricted until 12 months after publication by request of the publisher |
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dc.check.date |
2020-10-29 |
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dc.date.updated |
2019-10-31T12:29:00Z |
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dc.description.version |
Accepted Version |
en |
dc.internal.rssid |
499910001 |
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dc.contributor.funder |
U.S. Department of Energy
|
en |
dc.contributor.funder |
Northwestern University
|
en |
dc.contributor.funder |
Dow Chemical Company
|
en |
dc.contributor.funder |
W. M. Keck Foundation
|
en |
dc.contributor.funder |
University of Illinois
|
en |
dc.contributor.funder |
Environmental Protection Agency
|
en |
dc.contributor.funder |
National Science Foundation
|
en |
dc.contributor.funder |
Science Foundation Ireland
|
en |
dc.description.status |
Peer reviewed |
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dc.identifier.journaltitle |
Nano Letters |
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dc.internal.copyrightchecked |
No |
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dc.internal.licenseacceptance |
Yes |
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dc.internal.IRISemailaddress |
michael.nolan@tyndall.ie |
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dc.internal.bibliocheck |
In press. Check vol / issue / page range. Amend citation as necessary. |
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dc.relation.project |
info:eu-repo/grantAgreement/SFI/SFI US Ireland R&D Partnership/14/US/E2915/IE/SusChEM: Using theory-driven design to tailor novel nanocomposite oxides for solar fuel production/
|
en |
dc.relation.project |
info:eu-repo/grantAgreement/NSF//1542205/US/NNCI: Soft and Hybrid Nanotechnology Experimental (SHyNE) Resource/
|
en |