An X-ray photoelectron spectroscopy study of platinum nanoparticles on yttria-stabilized zirconia ionic support

Insight into metal support interaction

Spyridon Ntais, Rima Isaifan, Elena A. Baranova

Research output: Contribution to journalArticle

15 Citations (Scopus)

Abstract

An insight into the electronic interaction between platinum nanoparticles and ionically conductive yttria-stabilized zirconia (YSZ) support is reported. To this end, Pt nanoparticles with four different crystallite sizes ranging from 1.9 to 6.7 nm were interfaced with YSZ resulting in ≤1 wt% Pt on YSZ. The obtained four Pt/YSZ systems were studied using X-ray photoelectron spectroscopy and the changes of the recorded spectra are discussed in details. Pt4f peak is detected in all cases at lower binding energies compared to the position of the peak of a platinum foil. More specifically, the Pt4f peak in the case of the smallest nanoparticles shifts 0.9 eV compared to the peak position of the Pt foil. Furthermore, small changes are detected on the Zr3d, Y3d and O1s spectra after Pt nanoparticle deposition. The XPS results are interpreted on the basis of charge transfer that occurs from the oxide support to the platinum nanoparticles, which may be responsible for the observed strong metal-support interaction (SMSI) between Pt and ionically conducting ceramics reported earlier for various catalytic reactions.

Original languageEnglish
Pages (from-to)673-679
Number of pages7
JournalMaterials Chemistry and Physics
Volume148
Issue number3
DOIs
Publication statusPublished - 2014
Externally publishedYes

Fingerprint

Yttria stabilized zirconia
yttria-stabilized zirconia
Platinum
platinum
X ray photoelectron spectroscopy
Metals
photoelectron spectroscopy
Nanoparticles
nanoparticles
metals
x rays
Metal foil
interactions
foils
Crystallite size
Binding energy
Oxides
Charge transfer
binding energy
charge transfer

Keywords

  • Ceramics
  • Nanostructures
  • Oxides
  • Surface properties
  • X-ray photo-emission spectroscopy (XPS)

ASJC Scopus subject areas

  • Materials Science(all)
  • Condensed Matter Physics

Cite this

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title = "An X-ray photoelectron spectroscopy study of platinum nanoparticles on yttria-stabilized zirconia ionic support: Insight into metal support interaction",
abstract = "An insight into the electronic interaction between platinum nanoparticles and ionically conductive yttria-stabilized zirconia (YSZ) support is reported. To this end, Pt nanoparticles with four different crystallite sizes ranging from 1.9 to 6.7 nm were interfaced with YSZ resulting in ≤1 wt{\%} Pt on YSZ. The obtained four Pt/YSZ systems were studied using X-ray photoelectron spectroscopy and the changes of the recorded spectra are discussed in details. Pt4f peak is detected in all cases at lower binding energies compared to the position of the peak of a platinum foil. More specifically, the Pt4f peak in the case of the smallest nanoparticles shifts 0.9 eV compared to the peak position of the Pt foil. Furthermore, small changes are detected on the Zr3d, Y3d and O1s spectra after Pt nanoparticle deposition. The XPS results are interpreted on the basis of charge transfer that occurs from the oxide support to the platinum nanoparticles, which may be responsible for the observed strong metal-support interaction (SMSI) between Pt and ionically conducting ceramics reported earlier for various catalytic reactions.",
keywords = "Ceramics, Nanostructures, Oxides, Surface properties, X-ray photo-emission spectroscopy (XPS)",
author = "Spyridon Ntais and Rima Isaifan and Baranova, {Elena A.}",
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AU - Baranova, Elena A.

PY - 2014

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N2 - An insight into the electronic interaction between platinum nanoparticles and ionically conductive yttria-stabilized zirconia (YSZ) support is reported. To this end, Pt nanoparticles with four different crystallite sizes ranging from 1.9 to 6.7 nm were interfaced with YSZ resulting in ≤1 wt% Pt on YSZ. The obtained four Pt/YSZ systems were studied using X-ray photoelectron spectroscopy and the changes of the recorded spectra are discussed in details. Pt4f peak is detected in all cases at lower binding energies compared to the position of the peak of a platinum foil. More specifically, the Pt4f peak in the case of the smallest nanoparticles shifts 0.9 eV compared to the peak position of the Pt foil. Furthermore, small changes are detected on the Zr3d, Y3d and O1s spectra after Pt nanoparticle deposition. The XPS results are interpreted on the basis of charge transfer that occurs from the oxide support to the platinum nanoparticles, which may be responsible for the observed strong metal-support interaction (SMSI) between Pt and ionically conducting ceramics reported earlier for various catalytic reactions.

AB - An insight into the electronic interaction between platinum nanoparticles and ionically conductive yttria-stabilized zirconia (YSZ) support is reported. To this end, Pt nanoparticles with four different crystallite sizes ranging from 1.9 to 6.7 nm were interfaced with YSZ resulting in ≤1 wt% Pt on YSZ. The obtained four Pt/YSZ systems were studied using X-ray photoelectron spectroscopy and the changes of the recorded spectra are discussed in details. Pt4f peak is detected in all cases at lower binding energies compared to the position of the peak of a platinum foil. More specifically, the Pt4f peak in the case of the smallest nanoparticles shifts 0.9 eV compared to the peak position of the Pt foil. Furthermore, small changes are detected on the Zr3d, Y3d and O1s spectra after Pt nanoparticle deposition. The XPS results are interpreted on the basis of charge transfer that occurs from the oxide support to the platinum nanoparticles, which may be responsible for the observed strong metal-support interaction (SMSI) between Pt and ionically conducting ceramics reported earlier for various catalytic reactions.

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