Effect of Hydrogen Pretreatment of Platinum Nanoparticles on their Catalytic Properties: Reactions with Alkyl Radicals – A Mechanistic Study. Issue 17 (10th August 2016)

• Record Type: Journal Article
• Authors: Bar‐Ziv, Ronen; Zidki, Tomer; Zilbermann, Israel; Yardeni, Guy; Meyerstein, Dan
• Is Part Of: ChemCatChem. Volume 8:Issue 17(2016)
• Page Start: 2761
• Page End: 2764
• Publication Date: 2016-08-10
• Subjects: heterogeneous catalysis -- hydrogen -- nanoparticles -- platinum -- radicals; Catalysis -- Periodicals; 541.39505
• DOI: 10.1002/cctc.201600553
• Languages: English
• ISSNs: 1867-3880

Abstract

Abstract: Methyl radicals react with platinum nanoparticles (NPs) suspended in aqueous solutions to form (Pt 0 ‐NPs)‐(CH3 ) n as a stable major product. Hydrogen gas treatment of the Pt 0 ‐NPs affects the composition of the products and the surface reactions. The results clearly point out that pretreatment of Pt 0 ‐NPs and (Pt 0 ‐NPs)‐(CH3 ) n with H2 considerably affects their reactions with methyl radicals. The implications of the results on catalytic processes are discussed. Abstract : Radical reactions at surfaces : The pretreatment of Pt nanoparticles with hydrogen considerably affects the reactions of the Pt nanoparticles with methyl radicals. The implications of the results on catalytic processes are discussed.