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Structural Insight into Strong Pt-CeO2 Interaction : From Single Pt Atoms to PtOx Clusters. / Derevyannikova, Elizaveta A.; Kardash, Tatyana Yu; Stadnichenko, Andrey I. et al.

In: Journal of Physical Chemistry C, Vol. 123, No. 2, 17.01.2019, p. 1320-1334.

Research output: Contribution to journal › Article › peer-review

Harvard

Derevyannikova, EA, Kardash, TY, Stadnichenko, AI, Stonkus, OA, Slavinskaya, EM, Svetlichnyi, VA & Boronin, AI 2019, 'Structural Insight into Strong Pt-CeO2 Interaction: From Single Pt Atoms to PtOx Clusters', Journal of Physical Chemistry C, vol. 123, no. 2, pp. 1320-1334. https://doi.org/10.1021/acs.jpcc.8b11009

APA

Derevyannikova, E. A., Kardash, T. Y., Stadnichenko, A. I., Stonkus, O. A., Slavinskaya, E. M., Svetlichnyi, V. A., & Boronin, A. I. (2019). Structural Insight into Strong Pt-CeO2 Interaction: From Single Pt Atoms to PtOx Clusters. Journal of Physical Chemistry C, 123(2), 1320-1334. https://doi.org/10.1021/acs.jpcc.8b11009

Vancouver

Derevyannikova EA, Kardash TY, Stadnichenko AI, Stonkus OA, Slavinskaya EM, Svetlichnyi VA et al. Structural Insight into Strong Pt-CeO2 Interaction: From Single Pt Atoms to PtOx Clusters. Journal of Physical Chemistry C. 2019 Jan 17;123(2):1320-1334. doi: 10.1021/acs.jpcc.8b11009

Author

Derevyannikova, Elizaveta A. ; Kardash, Tatyana Yu ; Stadnichenko, Andrey I. et al. / Structural Insight into Strong Pt-CeO2 Interaction : From Single Pt Atoms to PtOx Clusters. In: Journal of Physical Chemistry C. 2019 ; Vol. 123, No. 2. pp. 1320-1334.

BibTeX

@article{ffceb6bf5adc4eb38c4084ada1544815,
title = "Structural Insight into Strong Pt-CeO2 Interaction: From Single Pt Atoms to PtOx Clusters",
abstract = "Pt-CeO2 nanocomposites were obtained by coprecipitation, varying the Pt loading over a wide range of 1-30 wt %. The samples were calcined in air at 450-1000 °C. The Pt-CeO2 nanocomposites were investigated by a set of structural (X-ray diffraction, extended X-ray absorption fine structure (EXAFS), pair distribution function (PDF), and transmission electron microscopy) and spectroscopic (X-ray photoelectron spectroscopy and Raman spectroscopy) methods. Over the whole range of Pt loading, the main species were Pt2+ and Pt4+. They were localized either in a single-atom state or in the form of PtOx clusters on the ceria surface. The joint PDF and EXAFS modeling based on the combination of [Pt2+O4] single-atom and Pt3O4 structural fragments allowed us to propose the local structure of the PtOx clusters. The formation of such surface structures is associated with a distorted ceria surface on the Pt-CeO2 nanocomposites. We assume that the close arrangement of platinum ions in the PtOx clusters could be responsible for the effective redox properties of the samples.",
keywords = "WATER-GAS-SHIFT, RAY PHOTOELECTRON-SPECTROSCOPY, TEMPERATURE CO OXIDATION, CATALYTIC-PROPERTIES, PT/CEO2 CATALYSTS, PLATINUM NANOPARTICLES, LATTICE-RELAXATION, PD/CEO2 CATALYSTS, LOCAL-STRUCTURE, DEFECT SITES",
author = "Derevyannikova, {Elizaveta A.} and Kardash, {Tatyana Yu} and Stadnichenko, {Andrey I.} and Stonkus, {Olga A.} and Slavinskaya, {Elena M.} and Svetlichnyi, {Valery A.} and Boronin, {Andrei I.}",
year = "2019",
month = jan,
day = "17",
doi = "10.1021/acs.jpcc.8b11009",
language = "English",
volume = "123",
pages = "1320--1334",
journal = "Journal of Physical Chemistry C",
issn = "1932-7447",
publisher = "American Chemical Society",
number = "2",

}

RIS

TY - JOUR

T1 - Structural Insight into Strong Pt-CeO2 Interaction

T2 - From Single Pt Atoms to PtOx Clusters

AU - Derevyannikova, Elizaveta A.

AU - Kardash, Tatyana Yu

AU - Stadnichenko, Andrey I.

AU - Stonkus, Olga A.

AU - Slavinskaya, Elena M.

AU - Svetlichnyi, Valery A.

AU - Boronin, Andrei I.

PY - 2019/1/17

Y1 - 2019/1/17

N2 - Pt-CeO2 nanocomposites were obtained by coprecipitation, varying the Pt loading over a wide range of 1-30 wt %. The samples were calcined in air at 450-1000 °C. The Pt-CeO2 nanocomposites were investigated by a set of structural (X-ray diffraction, extended X-ray absorption fine structure (EXAFS), pair distribution function (PDF), and transmission electron microscopy) and spectroscopic (X-ray photoelectron spectroscopy and Raman spectroscopy) methods. Over the whole range of Pt loading, the main species were Pt2+ and Pt4+. They were localized either in a single-atom state or in the form of PtOx clusters on the ceria surface. The joint PDF and EXAFS modeling based on the combination of [Pt2+O4] single-atom and Pt3O4 structural fragments allowed us to propose the local structure of the PtOx clusters. The formation of such surface structures is associated with a distorted ceria surface on the Pt-CeO2 nanocomposites. We assume that the close arrangement of platinum ions in the PtOx clusters could be responsible for the effective redox properties of the samples.

AB - Pt-CeO2 nanocomposites were obtained by coprecipitation, varying the Pt loading over a wide range of 1-30 wt %. The samples were calcined in air at 450-1000 °C. The Pt-CeO2 nanocomposites were investigated by a set of structural (X-ray diffraction, extended X-ray absorption fine structure (EXAFS), pair distribution function (PDF), and transmission electron microscopy) and spectroscopic (X-ray photoelectron spectroscopy and Raman spectroscopy) methods. Over the whole range of Pt loading, the main species were Pt2+ and Pt4+. They were localized either in a single-atom state or in the form of PtOx clusters on the ceria surface. The joint PDF and EXAFS modeling based on the combination of [Pt2+O4] single-atom and Pt3O4 structural fragments allowed us to propose the local structure of the PtOx clusters. The formation of such surface structures is associated with a distorted ceria surface on the Pt-CeO2 nanocomposites. We assume that the close arrangement of platinum ions in the PtOx clusters could be responsible for the effective redox properties of the samples.

KW - WATER-GAS-SHIFT

KW - RAY PHOTOELECTRON-SPECTROSCOPY

KW - TEMPERATURE CO OXIDATION

KW - CATALYTIC-PROPERTIES

KW - PT/CEO2 CATALYSTS

KW - PLATINUM NANOPARTICLES

KW - LATTICE-RELAXATION

KW - PD/CEO2 CATALYSTS

KW - LOCAL-STRUCTURE

KW - DEFECT SITES

UR - http://www.scopus.com/inward/record.url?scp=85060134355&partnerID=8YFLogxK

U2 - 10.1021/acs.jpcc.8b11009

DO - 10.1021/acs.jpcc.8b11009

M3 - Article

AN - SCOPUS:85060134355

VL - 123

SP - 1320

EP - 1334

JO - Journal of Physical Chemistry C

JF - Journal of Physical Chemistry C

SN - 1932-7447

IS - 2

ER -

ID: 18291467