Metal-support interaction of Pt nanoparticles with ionically and non-ionically conductive supports for CO oxidation

Rima Isaifan, Holly A E Dole, Emil Obeid, Leonardo Lizarraga, Philippe Vernoux, Elena A. Baranova

Research output: Contribution to journalArticle

20 Citations (Scopus)

Abstract

Platinum nanoparticles of narrow size distribution (∼2.5 nm) were synthesized using a modified polyol method and deposited on yttria-stabilized zirconia (PtYSZ), carbon (PtC) and -alumina (Pt-Al 2O 3) supports, resulting in 1 wt of Pt loading. PtYSZ has the highest catalytic activity toward CO oxidation among the studied catalysts. Decrease in the average particle size of PtYSZ led to the increase in CO conversion at low temperatures. Enhanced performances can be explained by the thermally induced O 2- backspillover from YSZ over Pt nanoparticles in agreement with the electrochemical promotion mechanism. Observed effect becomes more pronounced with decreasing the particle size.

Original languageEnglish
JournalElectrochemical and Solid-State Letters
Volume15
Issue number3
DOIs
Publication statusPublished - 2012
Externally publishedYes

Fingerprint

Carbon Monoxide
yttria-stabilized zirconia
Metals
Particle size
Nanoparticles
Oxidation
nanoparticles
oxidation
Aluminum Oxide
Polyols
Yttria stabilized zirconia
promotion
Platinum
metals
catalytic activity
Catalyst activity
platinum
Alumina
Carbon
aluminum oxides

ASJC Scopus subject areas

  • Electrochemistry
  • Electrical and Electronic Engineering
  • Materials Science(all)
  • Chemical Engineering(all)
  • Physical and Theoretical Chemistry

Cite this

Metal-support interaction of Pt nanoparticles with ionically and non-ionically conductive supports for CO oxidation. / Isaifan, Rima; Dole, Holly A E; Obeid, Emil; Lizarraga, Leonardo; Vernoux, Philippe; Baranova, Elena A.

In: Electrochemical and Solid-State Letters, Vol. 15, No. 3, 2012.

Research output: Contribution to journalArticle

Isaifan, Rima ; Dole, Holly A E ; Obeid, Emil ; Lizarraga, Leonardo ; Vernoux, Philippe ; Baranova, Elena A. / Metal-support interaction of Pt nanoparticles with ionically and non-ionically conductive supports for CO oxidation. In: Electrochemical and Solid-State Letters. 2012 ; Vol. 15, No. 3.
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