caa a22 4500 475843851 CHVBK 20180406123908.0 cr unu---uuuuu 170329e20001201xx s 000 0 eng 10.1023/A:1009015318393 doi (NATIONALLICENCE)springer-10.1023/A:1009015318393 The chemisorption of nitric oxide and the oxidation of ammonia at Cu(110) surfaces: a X-ray photoelectron spectroscopy (XPS) and scanning tunnelling microscopy (STM) study [Elektronische Daten] [A.F. Carley, P.R. Davies, K.R. Harikumar, R.V. Jones, G.U. Kulkarni, M.W. Roberts] The dissociative chemisorption of nitric oxide at Cu(110) has been shown to result in rapid ordering of oxygen adatoms as (2×1)O chains oriented along the 〈100〉 direction while the associated nitrogen adatoms are mainly disordered at 295 K. Surface diffusion of the N adatoms, following bond cleavage, is activated and ordering of the (2×3)N strings occurs on heating to 430 K. A number of distinct reaction pathways have been isolated during the oxidation of ammonia resulting in the formation of either chemisorbed imide or nitrogen adatoms. The latter depending on temperature, may exhibit a (2×3)N, a (3×3)N or both structures may exist simultaneously. The concentration of nitrogen in the complete (2×3)N structure has been determined to be 6.6×1014 cm-2, with only a 25% decrease in nitrogen concentration leading to the transformation to the (3×3)N structure. The oxygen atoms at a Cu(110)-O overlayer, and present at the ends of the (2×1) strings terminating in steps, show specific reactivity when exposed to ammonia at 375 K resulting in the "decoration” of the steps with imide species while the oxygens within the (2×1) strings remain unreactive. Plenum Publishing Corporation, 2000 nitric oxide nationallicence ammonia nationallicence oxidation nationallicence X-ray photoelectron spectroscopy nationallicence scanning tunnelling microscopy nationallicence Carley A.F. Department of Chemistry, Cardiff University, PO Box 912, CF10 3TB, Cardiff, Wales, UK aut Davies P.R. Department of Chemistry, Cardiff University, PO Box 912, CF10 3TB, Cardiff, Wales, UK aut Harikumar K.R. Department of Chemistry, Cardiff University, PO Box 912, CF10 3TB, Cardiff, Wales, UK aut Jones R.V. Department of Chemistry, Cardiff University, PO Box 912, CF10 3TB, Cardiff, Wales, UK aut Kulkarni G.U. Department of Chemistry, Cardiff University, PO Box 912, CF10 3TB, Cardiff, Wales, UK aut Roberts M.W. Department of Chemistry, Cardiff University, PO Box 912, CF10 3TB, Cardiff, Wales, UK aut Topics in Catalysis Kluwer Academic Publishers-Plenum Publishers 14/1-4(2000-12-01), 101-109 1022-5528 14:1-4<101 2000 14 11244 https://doi.org/10.1023/A:1009015318393 text/html Onlinezugriff via DOI 1 research-article jats NATIONALLICENCE 856 40 https://doi.org/10.1023/A:1009015318393 text/html Onlinezugriff via DOI NATIONALLICENCE 700 1- Carley A.F. Department of Chemistry, Cardiff University, PO Box 912, CF10 3TB, Cardiff, Wales, UK aut NATIONALLICENCE 700 1- Davies P.R. Department of Chemistry, Cardiff University, PO Box 912, CF10 3TB, Cardiff, Wales, UK aut NATIONALLICENCE 700 1- Harikumar K.R. Department of Chemistry, Cardiff University, PO Box 912, CF10 3TB, Cardiff, Wales, UK aut NATIONALLICENCE 700 1- Jones R.V. Department of Chemistry, Cardiff University, PO Box 912, CF10 3TB, Cardiff, Wales, UK aut NATIONALLICENCE 700 1- Kulkarni G.U. Department of Chemistry, Cardiff University, PO Box 912, CF10 3TB, Cardiff, Wales, UK aut NATIONALLICENCE 700 1- Roberts M.W. Department of Chemistry, Cardiff University, PO Box 912, CF10 3TB, Cardiff, Wales, UK aut NATIONALLICENCE 773 0- Topics in Catalysis Kluwer Academic Publishers-Plenum Publishers 14/1-4(2000-12-01), 101-109 1022-5528 14:1-4<101 2000 14 11244 Metadata rights reserved Springer special CC-BY-NC licence nationallicence BK010053 XK010053 XK010000 NATIONALLICENCE NATIONALLICENCE NL-springer