Elsevier

Applied Catalysis

Volume 25, Issues 1–2, 15 August 1986, Pages 165-172
Applied Catalysis

Ethylenoxide adsorption on clean and modified CU(110) and AG(110)

https://doi.org/10.1016/S0166-9834(00)81233-6Get rights and content

Abstract

Ethylenoxide (Et-O) adsorption on clean and oxygen covered Cu(110) and Ag(110) was studied with thermal desorption spectroscopy (TDS), work function measurements (Δφ), LEED and angular resolved photoemission (ARUPS). The data indicate that Et-O on clean Cu(110) and Ag(110) is bound molecularly via the oxygen atom with the molecular axis nearly perpendicular to the surface. Coadsorption with oxygen leads to an increase of the binding energy on Ag(110) and a decrease on Cu(110). The molecular axis of Et-O on O(2x1)Cu(110) is strongly inclined. There is nearly no dissociation of Et-O during an adsorption-desorption cycle on Cu(110) and Ag(110).

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