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

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.

SUBMITTER: Suzana AF

PROVIDER: S-EPMC9417304 | biostudies-literature | 2019 Aug

REPOSITORIES: biostudies-literature

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

Suzana Ana Flavia AF Rochet Amélie A Passos Aline Ribeiro AR Castro Zerba João Paulo JP Polo Carla Cristina CC Santilli Celso Valentim CV Pulcinelli Sandra Helena SH Berenguer Felisa F Harder Ross R Maxey Evan E Meneau Florian F

Nanoscale advances 20190617 8

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 ...[more]

PMID: 36133615

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