Complete benzene oxidation over Pt-Pd bimental catalyst supported on γ-alumina: Influence of Pt-Pd ratio on the catalytic activity

Hyoung Sik Kim, Tae Won Kim, Hyoung Lim Koh, Seo Ho Lee, Byoung Ryul Min

Research output: Contribution to journalArticle

122 Citations (Scopus)

Abstract

Pt-Pd bimetal catalysts were prepared in order to develop and investigate catalysts with excellent activity and stability for benzene destruction. In the reaction results, the addition of Pt to Pd/γ -Al2O3 catalyst brought about the increase of catalytic activity. Moreover, it was effective in preventing the deactivation of the catalysts in benzene combustion. The addition of some amount of Pt made Pd particles available for better benzene combustion. On the contrary, the addition of Pt beyond a certain amount decreases activity because of the Pd active sites overlapped with the Pt active sites. The activity of the catalysts is related to oxidation state of metal, Pd/Al ratio and particle size on γ -Al2O3. These effects of Pt addition to Pd catalysts were studied by XPS, XRD, and TEM analyses.

Original languageEnglish
Pages (from-to)125-131
Number of pages7
JournalApplied Catalysis A: General
Volume280
Issue number2
DOIs
Publication statusPublished - 2005 Mar 8

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Aluminum Oxide
Benzene
Catalyst supports
Catalyst activity
Alumina
Oxidation
Catalysts
Bimetals
X ray photoelectron spectroscopy
Metals
Particle size
Transmission electron microscopy

All Science Journal Classification (ASJC) codes

  • Catalysis
  • Process Chemistry and Technology

Cite this

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title = "Complete benzene oxidation over Pt-Pd bimental catalyst supported on γ-alumina: Influence of Pt-Pd ratio on the catalytic activity",
abstract = "Pt-Pd bimetal catalysts were prepared in order to develop and investigate catalysts with excellent activity and stability for benzene destruction. In the reaction results, the addition of Pt to Pd/γ -Al2O3 catalyst brought about the increase of catalytic activity. Moreover, it was effective in preventing the deactivation of the catalysts in benzene combustion. The addition of some amount of Pt made Pd particles available for better benzene combustion. On the contrary, the addition of Pt beyond a certain amount decreases activity because of the Pd active sites overlapped with the Pt active sites. The activity of the catalysts is related to oxidation state of metal, Pd/Al ratio and particle size on γ -Al2O3. These effects of Pt addition to Pd catalysts were studied by XPS, XRD, and TEM analyses.",
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Complete benzene oxidation over Pt-Pd bimental catalyst supported on γ-alumina : Influence of Pt-Pd ratio on the catalytic activity. / Kim, Hyoung Sik; Kim, Tae Won; Koh, Hyoung Lim; Lee, Seo Ho; Min, Byoung Ryul.

In: Applied Catalysis A: General, Vol. 280, No. 2, 08.03.2005, p. 125-131.

Research output: Contribution to journalArticle

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AB - Pt-Pd bimetal catalysts were prepared in order to develop and investigate catalysts with excellent activity and stability for benzene destruction. In the reaction results, the addition of Pt to Pd/γ -Al2O3 catalyst brought about the increase of catalytic activity. Moreover, it was effective in preventing the deactivation of the catalysts in benzene combustion. The addition of some amount of Pt made Pd particles available for better benzene combustion. On the contrary, the addition of Pt beyond a certain amount decreases activity because of the Pd active sites overlapped with the Pt active sites. The activity of the catalysts is related to oxidation state of metal, Pd/Al ratio and particle size on γ -Al2O3. These effects of Pt addition to Pd catalysts were studied by XPS, XRD, and TEM analyses.

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