Density functional study of chloroethene reactions with iron surfaces

James Farrell, Nianliu Zhang, Paul Blowers

Research output: Contribution to journalConference article

Abstract

The reactions involved in reduction of trichloroethylene (TCE) and tetrachloroethylene (PCE) at metallic iron surfaces were studied. The Perdew-Burke-Enzerhof functional was used to model both physical and chemical adsorption of TCE and PCE at different sites on the iron surface. Initial configurations with the C=C bond physically adsorbed at bridge sites between adjacent iron atoms resulted in di-sigma bond formation between two C and two Fe atoms and activation of all three C-Cl bonds. Initial configurations with the C=C bond physically adsorbed at a top site above a single Fe atom, or at a hollow site between four Fe atoms, resulted in only one C atom binding to the iron and activation of only two C-Cl bonds. Chemisorbed structures formed at bridge sites were the most energetically favorable and had early transition states with activation energies of ∼ 50 kJ/mole. This is an abstract of a paper presented at the 231th ACS National Meeting (Atlanta, GA 3/26-30/2006).

Original languageEnglish (US)
JournalACS National Meeting Book of Abstracts
Volume231
StatePublished - Jun 28 2006
Externally publishedYes
Event231th ACS National Meeting - Atlanta, GA, United States
Duration: Mar 26 2006Mar 30 2006

ASJC Scopus subject areas

  • Chemistry(all)
  • Chemical Engineering(all)

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