Adsorption and surface chemistry of CH3 on Pt(111)

D. H. Fairbrother, X. D. Peng, P. C. Stair, J. Fan, M. Trenary

Research output: Contribution to journalConference articlepeer-review

6 Citations (Scopus)

Abstract

The surface reaction of small adsorbed hydrocarbon fragments such as C1 and C2 alkyl groups, which are radicals in the gas phase, have been subjects of great interest in the field of heterogeneous catalysis. In recent years the decomposition of methyl groups adsorbed on metals has been studied using surface techniques. Methyl groups on Ni(111) have been produced via collisional activation of methane using a molecular beam and on Pt(111) and Cu(110) surfaces following thermal or photochemical dissociation of the C-X bond in adsorbed methyl halides. In the present work gas phase methyl radicals were produced by thermal decomposition of azomethane, CH3NNCH3 and adsorbed directly on a clean or hydrogen covered Pt(111) surface. This procedure avoids the coadsorbed halogens, and can be extended to produce other hydrocarbon fragments, such as CH2.

Original languageEnglish
Pages (from-to)280-281
Number of pages2
JournalAmerican Chemical Society, Division of Petroleum Chemistry, Preprints
Volume39
Issue number2
Publication statusPublished - Mar 1 1994
EventProceedings of the Symposia on the Role of Asphaltenes in Petroleum Exploration, Production and Refining - San Diego, CA, USA
Duration: Mar 13 1994Mar 18 1994

ASJC Scopus subject areas

  • Fuel Technology

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