THE ADSORPTION AND REACTION OF ACETALDEHYDE ON CLEANAg(111)

G. Wu, D. Stacchiola, M. Collins and W. T. Tysoe ()
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G. Wu: Department of Chemistry and Laboratory for Surface Studies, University of Wisconsin-Milwaukee, Milwaukee, WI 53211, USA
D. Stacchiola: Department of Chemistry and Laboratory for Surface Studies, University of Wisconsin-Milwaukee, Milwaukee, WI 53211, USA
M. Collins: Department of Chemistry and Laboratory for Surface Studies, University of Wisconsin-Milwaukee, Milwaukee, WI 53211, USA
W. T. Tysoe: Department of Chemistry and Laboratory for Surface Studies, University of Wisconsin-Milwaukee, Milwaukee, WI 53211, USA

Surface Review and Letters (SRL), 2000, vol. 07, issue 03, 271-275

Abstract: The adsorption of acetaldehyde has been studied on clean Ag(111) using temperature-programmed desorption (TPD) and reflection–absorption infrared (RAIRS) spectroscopies. Acetaldehyde adsorbs at 80 K via the oxygen lone pair in an η1(O) configuration. It is found that a portion of the adsorbed acetaldehyde desorbs at low temperatures (~ 160 K) and also polymerizes. Based on this and other work, it is proposed that the surface polymer consists of an open chain with a desorption temperature that shifts with coverage.

Date: 2000
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DOI: 10.1142/S0218625X00000373

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