Effect of Hydrogen Pretreatment of Platinum Nanoparticles on their Catalytic Properties: Reactions with Alkyl Radicals – A Mechanistic Study

Ronen Bar-Ziv; Tomer Zidki; Israel Zilbermann; Guy Yardeni; Dan Meyerstein

doi:10.1002/cctc.201600553

Effect of Hydrogen Pretreatment of Platinum Nanoparticles on their Catalytic Properties: Reactions with Alkyl Radicals – A Mechanistic Study

Ronen Bar-Ziv, Tomer Zidki, Israel Zilbermann, Guy Yardeni, Dan Meyerstein

Department of Chemical Sciences

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

12 Scopus citations

Abstract

Methyl radicals react with platinum nanoparticles (NPs) suspended in aqueous solutions to form (Pt⁰-NPs)-(CH₃)_n as a stable major product. Hydrogen gas treatment of the Pt⁰-NPs affects the composition of the products and the surface reactions. The results clearly point out that pretreatment of Pt⁰-NPs and (Pt⁰-NPs)-(CH₃)_n with H₂ considerably affects their reactions with methyl radicals. The implications of the results on catalytic processes are discussed.

Original language	English
Pages (from-to)	2761-2764
Number of pages	4
Journal	ChemCatChem
Volume	8
Issue number	17
DOIs	https://doi.org/10.1002/cctc.201600553
State	Published - 7 Sep 2016

Keywords

heterogeneous catalysis
hydrogen
nanoparticles
platinum
radicals

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title = "Effect of Hydrogen Pretreatment of Platinum Nanoparticles on their Catalytic Properties: Reactions with Alkyl Radicals – A Mechanistic Study",

abstract = "Methyl radicals react with platinum nanoparticles (NPs) suspended in aqueous solutions to form (Pt0-NPs)-(CH3)n as a stable major product. Hydrogen gas treatment of the Pt0-NPs affects the composition of the products and the surface reactions. The results clearly point out that pretreatment of Pt0-NPs and (Pt0-NPs)-(CH3)n with H2 considerably affects their reactions with methyl radicals. The implications of the results on catalytic processes are discussed.",

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AU - Zidki, Tomer

AU - Zilbermann, Israel

AU - Yardeni, Guy

AU - Meyerstein, Dan

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N2 - Methyl radicals react with platinum nanoparticles (NPs) suspended in aqueous solutions to form (Pt0-NPs)-(CH3)n as a stable major product. Hydrogen gas treatment of the Pt0-NPs affects the composition of the products and the surface reactions. The results clearly point out that pretreatment of Pt0-NPs and (Pt0-NPs)-(CH3)n with H2 considerably affects their reactions with methyl radicals. The implications of the results on catalytic processes are discussed.

AB - Methyl radicals react with platinum nanoparticles (NPs) suspended in aqueous solutions to form (Pt0-NPs)-(CH3)n as a stable major product. Hydrogen gas treatment of the Pt0-NPs affects the composition of the products and the surface reactions. The results clearly point out that pretreatment of Pt0-NPs and (Pt0-NPs)-(CH3)n with H2 considerably affects their reactions with methyl radicals. The implications of the results on catalytic processes are discussed.

KW - heterogeneous catalysis

KW - hydrogen

KW - nanoparticles

KW - platinum

KW - radicals

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Effect of Hydrogen Pretreatment of Platinum Nanoparticles on their Catalytic Properties: Reactions with Alkyl Radicals – A Mechanistic Study

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