Absolute coverages of CO and O on Pt(111); Comparison of saturation CO coverages on Pt(100), (110) and (111) surfaces |
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| Authors: | PR Norton JA Davies TE Jackman |
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| Institution: | Chemistry and Materials Division, Atomic Energy of Canada Ltd. Research Company, Chalk River Nuclear Laboratories, Chalk River, Ontario KOJ 1JO, Canada |
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| Abstract: | Nuclear microanalysis (NMA) has been used to determine the absolute coverages of oxygen and CO adsorbed on Pt(111). The saturation oxygen coverage at 300 K is 3.9 ± 0.4 × 1014 O atoms cm?2 (θ = 0.26 ± 0.03), confirming the assignment of the LEED pattern as p(2 × 2). The saturation CO coverage at 300 K is 7.4 ± 0.3 × 1014 CO cm?2 (θ = 0.49 ± 0.02). The low temperature saturation CO coverages on Pt(100), (110) and (111) surfaces are compared. |
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