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(Reference retrieved automatically from Web of Science through information on FAPESP grant and its corresponding number as mentioned in the publication by the authors.)

In situ three-dimensional imaging of strain in gold nanocrystals during catalytic oxidation

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Author(s):
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Suzana, Ana Flavia [1, 2] ; Rochet, Amelie [1] ; Passos, Aline Ribeiro [1] ; Castro Zerba, Joao Paulo [1] ; Polo, Carla Cristina [1] ; Santilli, Celso Valentim [2] ; Pulcinelli, Sandra Helena [2] ; Berenguer, Felisa [3] ; Harder, Ross [4] ; Maxey, Evan [4] ; Meneau, Florian [1]
Total Authors: 11
Affiliation:
[1] Brazilian Ctr Res Energy & Mat CNPEM, Brazilian Synchrotron Light Lab LNLS, BR-13083970 Campinas, SP - Brazil
[2] UNESP, Inst Quim, Rua Prof Francisco Degni, BR-14800900 Araraquara, SP - Brazil
[3] Synchrotron SOLEIL, BP48, F-91192 Gif Sur Yvette - France
[4] Argonne Natl Lab, Adv Photon Source, 9700 South Cass Ave, Argonne, IL 60439 - USA
Total Affiliations: 4
Document type: Journal article
Source: NANOSCALE ADVANCES; v. 1, n. 8, p. 3009-3014, AUG 1 2019.
Web of Science Citations: 0
Abstract

The chemical properties of materials are dependent on dynamic changes in their three-dimensional (3D) structure as well as on the reactive environment. We report an in situ 3D imaging study of defect dynamics of a single gold nanocrystal. Our findings offer an insight into its dynamic nanostructure and unravel the formation of a nanotwin network under CO oxidation conditions. In situ/operando defect dynamics imaging paves the way to elucidate chemical processes at the single nano-object level towards defect-engineered nanomaterials. (AU)

FAPESP's process: 17/23050-4 - Multi-modal approach probing noble-metal catalysts at work
Grantee:Amélie Claire Rochet
Support type: Research Grants - Young Investigators Grants
FAPESP's process: 14/27127-3 - Genesis of gold nanoparticles: nucleation, growth and stabilization
Grantee:Ana Flávia Suzana
Support type: Scholarships in Brazil - Doctorate
FAPESP's process: 14/25964-5 - From the monomers to the nanoparticles: in situ real time investigation of gold nanoparticles formation by synchrotron and microscopy techniques
Grantee:Florian Edouard Pierre Meneau
Support type: Research Grants - Young Investigators Grants
FAPESP's process: 18/08816-3 - Operando coherent X-ray diffraction: imaging in 3D dimensions nanoparticle catalysts
Grantee:Aline Ribeiro Passos
Support type: Scholarships in Brazil - Post-Doctorate