Three-dimensional strain dynamics govern the hysteresis in heterogeneous catalysis

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MetadadosDescriçãoIdioma
Autor(es): dc.contributorBrazilian Center for Research in Energy and Materials (CNPEM)-
Autor(es): dc.contributorUniversidade Estadual Paulista (Unesp)-
Autor(es): dc.contributorArgonne National Laboratory-
Autor(es): dc.creatorPassos, Aline R.-
Autor(es): dc.creatorRochet, Amélie-
Autor(es): dc.creatorManente, Luiza M.-
Autor(es): dc.creatorSuzana, Ana F. [UNESP]-
Autor(es): dc.creatorHarder, Ross-
Autor(es): dc.creatorCha, Wonsuk-
Autor(es): dc.creatorMeneau, Florian-
Data de aceite: dc.date.accessioned2022-02-22T00:43:40Z-
Data de disponibilização: dc.date.available2022-02-22T00:43:40Z-
Data de envio: dc.date.issued2021-06-25-
Data de envio: dc.date.issued2021-06-25-
Data de envio: dc.date.issued2020-11-30-
Fonte completa do material: dc.identifierhttp://dx.doi.org/10.1038/s41467-020-18622-2-
Fonte completa do material: dc.identifierhttp://hdl.handle.net/11449/205184-
Fonte: dc.identifier.urihttp://educapes.capes.gov.br/handle/11449/205184-
Descrição: dc.descriptionUnderstanding catalysts strain dynamic behaviours is crucial for the development of cost-effective, efficient, stable and long-lasting catalysts. Here, we reveal in situ three-dimensional strain evolution of single gold nanocrystals during a catalytic CO oxidation reaction under operando conditions with coherent X-ray diffractive imaging. We report direct observation of anisotropic strain dynamics at the nanoscale, where identically crystallographically-oriented facets are qualitatively differently affected by strain leading to preferential active sites formation. Interestingly, the single nanoparticle elastic energy landscape, which we map with attojoule precision, depends on heating versus cooling cycles. The hysteresis observed at the single particle level is following the normal/inverse hysteresis loops of the catalytic performances. This approach opens a powerful avenue for studying, at the single particle level, catalytic nanomaterials and deactivation processes under operando conditions that will enable profound insights into nanoscale catalytic mechanisms.-
Descrição: dc.descriptionBrazilian Synchrotron Light Laboratory (LNLS) Brazilian Center for Research in Energy and Materials (CNPEM)-
Descrição: dc.descriptionInstituto de Química UNESP Rua Professor Francisco Degni-
Descrição: dc.descriptionAdvanced Photon Source Argonne National Laboratory, 9700 South Cass Avenue-
Descrição: dc.descriptionInstituto de Química UNESP Rua Professor Francisco Degni-
Idioma: dc.languageen-
Relação: dc.relationNature Communications-
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Título: dc.titleThree-dimensional strain dynamics govern the hysteresis in heterogeneous catalysis-
Tipo de arquivo: dc.typelivro digital-
Aparece nas coleções:Repositório Institucional - Unesp

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