Direct In Situ TEM Visualization and Insight into the Facet‐Dependent Sintering Behaviors of Gold on TiO2

Research output: Contribution to journalJournal article – Annual report year: 2018Researchpeer-review

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Direct In Situ TEM Visualization and Insight into the Facet‐Dependent Sintering Behaviors of Gold on TiO2 . / Yuan, Wentao; Zhang, Dawei; Ou, Yang; Fang, Ke; Zhu, Beien; Yang, Hangsheng; Hansen, Thomas W.; Wagner, Jakob Birkedal; Zhang, Ze; Gao, Yi; Wang, Yong.

In: Angewandte Chemie, Vol. 130, No. 51, 2018, p. 17069-17073.

Research output: Contribution to journalJournal article – Annual report year: 2018Researchpeer-review

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Yuan, W, Zhang, D, Ou, Y, Fang, K, Zhu, B, Yang, H, Hansen, TW, Wagner, JB, Zhang, Z, Gao, Y & Wang, Y 2018, 'Direct In Situ TEM Visualization and Insight into the Facet‐Dependent Sintering Behaviors of Gold on TiO2 ', Angewandte Chemie, vol. 130, no. 51, pp. 17069-17073. https://doi.org/10.1002/ange.201811933

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Author

Yuan, Wentao ; Zhang, Dawei ; Ou, Yang ; Fang, Ke ; Zhu, Beien ; Yang, Hangsheng ; Hansen, Thomas W. ; Wagner, Jakob Birkedal ; Zhang, Ze ; Gao, Yi ; Wang, Yong. / Direct In Situ TEM Visualization and Insight into the Facet‐Dependent Sintering Behaviors of Gold on TiO2 . In: Angewandte Chemie. 2018 ; Vol. 130, No. 51. pp. 17069-17073.

Bibtex

@article{2110de98e1ee4ac099a439ae367389d8,
title = "Direct In Situ TEM Visualization and Insight into the Facet‐Dependent Sintering Behaviors of Gold on TiO2",
abstract = "Preventing sintering of supported nanocatalysts is an important issue in nanocatalysis. A feasible way is to choose a suitable support. However, whether the metal–support interactions promote or prevent the sintering has not been fully identified. Now, completely different sintering behaviors of Au nanoparticles on distinct anatase TiO2 surfaces have been determined by in situ TEM. The full in situ sintering processes of Au nanoparticles were visualized on TiO2 (101) surface, which coupled the Ostwald ripening and particle migration coalescence. In contrast, no sintering of Au on TiO2 anatase (001) surface was observed under the same conditions. This facet‐dependent sintering mechanism is fully explained by the density function theory calculations. This work not only offers direct evidence of the important role of supports in the sintering process, but also provides insightful information for the design of sintering‐resistant nanocatalysts.",
author = "Wentao Yuan and Dawei Zhang and Yang Ou and Ke Fang and Beien Zhu and Hangsheng Yang and Hansen, {Thomas W.} and Wagner, {Jakob Birkedal} and Ze Zhang and Yi Gao and Yong Wang",
year = "2018",
doi = "10.1002/ange.201811933",
language = "English",
volume = "130",
pages = "17069--17073",
journal = "Angewandte Chemie",
issn = "0044-8249",
publisher = "Wiley - V C H Verlag GmbH & Co. KGaA",
number = "51",

}

RIS

TY - JOUR

T1 - Direct In Situ TEM Visualization and Insight into the Facet‐Dependent Sintering Behaviors of Gold on TiO2

AU - Yuan, Wentao

AU - Zhang, Dawei

AU - Ou, Yang

AU - Fang, Ke

AU - Zhu, Beien

AU - Yang, Hangsheng

AU - Hansen, Thomas W.

AU - Wagner, Jakob Birkedal

AU - Zhang, Ze

AU - Gao, Yi

AU - Wang, Yong

PY - 2018

Y1 - 2018

N2 - Preventing sintering of supported nanocatalysts is an important issue in nanocatalysis. A feasible way is to choose a suitable support. However, whether the metal–support interactions promote or prevent the sintering has not been fully identified. Now, completely different sintering behaviors of Au nanoparticles on distinct anatase TiO2 surfaces have been determined by in situ TEM. The full in situ sintering processes of Au nanoparticles were visualized on TiO2 (101) surface, which coupled the Ostwald ripening and particle migration coalescence. In contrast, no sintering of Au on TiO2 anatase (001) surface was observed under the same conditions. This facet‐dependent sintering mechanism is fully explained by the density function theory calculations. This work not only offers direct evidence of the important role of supports in the sintering process, but also provides insightful information for the design of sintering‐resistant nanocatalysts.

AB - Preventing sintering of supported nanocatalysts is an important issue in nanocatalysis. A feasible way is to choose a suitable support. However, whether the metal–support interactions promote or prevent the sintering has not been fully identified. Now, completely different sintering behaviors of Au nanoparticles on distinct anatase TiO2 surfaces have been determined by in situ TEM. The full in situ sintering processes of Au nanoparticles were visualized on TiO2 (101) surface, which coupled the Ostwald ripening and particle migration coalescence. In contrast, no sintering of Au on TiO2 anatase (001) surface was observed under the same conditions. This facet‐dependent sintering mechanism is fully explained by the density function theory calculations. This work not only offers direct evidence of the important role of supports in the sintering process, but also provides insightful information for the design of sintering‐resistant nanocatalysts.

U2 - 10.1002/ange.201811933

DO - 10.1002/ange.201811933

M3 - Journal article

VL - 130

SP - 17069

EP - 17073

JO - Angewandte Chemie

JF - Angewandte Chemie

SN - 0044-8249

IS - 51

ER -