Surface segregation and chemisorption of CO and oxygen on Pt25Ni75(111) studied by XPS and HREELS
After sputtering and annealing to different temperatures TA the chemically disordered (111) surface of a Pt25Ni75 crystal exhibits a composition that depends strongly on TA. This has been already observed earlier by ion scattering and scanning tunneling microscopy [M. Schmid et al., Nucl. Instrum. M...
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| Veröffentlicht in: | Surface science 1995-07, Vol.331-333, p.824-830 |
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| container_title | Surface science |
| container_volume | 331-333 |
| creator | Pantförder, A. Skonieczny, J. Janssen, E. Meister, G. Goldmann, A. Varga, P. |
| description | After sputtering and annealing to different temperatures TA the chemically disordered (111) surface of a Pt25Ni75 crystal exhibits a composition that depends strongly on TA. This has been already observed earlier by ion scattering and scanning tunneling microscopy [M. Schmid et al., Nucl. Instrum. Methods B 82 (1993) 259]. To complement this work, we have used angle-resolved X-ray photoelectron spectroscopy (XPS) to investigate the segregation behaviour a few layers below the surface. We have also used high-resolution electron energy loss spectroscopy (HREELS) to study adsorbate vibrations on differently prepared surfaces of Pt25Ni75(111) after exposure to O2 and CO at room temperature. |
| doi_str_mv | 10.1016/0039-6028(95)00385-1 |
| format | Article |
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This has been already observed earlier by ion scattering and scanning tunneling microscopy [M. Schmid et al., Nucl. Instrum. Methods B 82 (1993) 259]. To complement this work, we have used angle-resolved X-ray photoelectron spectroscopy (XPS) to investigate the segregation behaviour a few layers below the surface. We have also used high-resolution electron energy loss spectroscopy (HREELS) to study adsorbate vibrations on differently prepared surfaces of Pt25Ni75(111) after exposure to O2 and CO at room temperature.</description><identifier>ISSN: 0039-6028</identifier><identifier>EISSN: 1879-2758</identifier><identifier>DOI: 10.1016/0039-6028(95)00385-1</identifier><identifier>CODEN: SUSCAS</identifier><language>eng</language><publisher>Lausanne: Elsevier B.V</publisher><subject>Alloys ; Applied sciences ; Carbon monoxide ; Chemisorption ; Chemistry ; Exact sciences and technology ; General and physical chemistry ; Metals. 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Metallurgy</subject><subject>Nickel</subject><subject>Oxygen</subject><subject>Photoelectron diffraction</subject><subject>Platinum</subject><subject>Solid-gas interface</subject><subject>Surface physical chemistry</subject><subject>Vibrations of adsorbed molecules</subject><issn>0039-6028</issn><issn>1879-2758</issn><fulltext>true</fulltext><rsrctype>article</rsrctype><creationdate>1995</creationdate><recordtype>article</recordtype><recordid>eNo9kE1LAzEQhoMoWKv_wEMOHtrDarLZfOxFkFKtUGyxPXgL2WRSI-1uSbZi_73bVpzLy7w8DMOD0C0l95RQ8UAIKzNBcjUo-bBbFM_oGepRJcssl1ydo94_comuUvoi3RQl7yGz2EVvLOAEqwgr04amxqZ22H7CJqQmbo9N4_Foduybn_0KuqLG8zbnb0HyAaV0iFO7cwEcrvb4Y744opP38Xi6uEYX3qwT3PxlHy2fx8vRJJvOXl5HT9MMcibbTLDKFyWpPDVUeqeYKpQXAgoGNheFE8IVXnJbKeE4I0wK75moJFCfU85YH92dzm5Nsmbto6ltSHobw8bEvWYi55QVHfZ4wqB75TtA1MkGqC24EMG22jVBU6IPWvXBmT440yXXR62asl8MUWi9</recordid><startdate>19950701</startdate><enddate>19950701</enddate><creator>Pantförder, A.</creator><creator>Skonieczny, J.</creator><creator>Janssen, E.</creator><creator>Meister, G.</creator><creator>Goldmann, A.</creator><creator>Varga, P.</creator><general>Elsevier B.V</general><general>Elsevier Science</general><scope>IQODW</scope></search><sort><creationdate>19950701</creationdate><title>Surface segregation and chemisorption of CO and oxygen on Pt25Ni75(111) studied by XPS and HREELS</title><author>Pantförder, A. ; Skonieczny, J. ; Janssen, E. ; Meister, G. ; Goldmann, A. ; Varga, P.</author></sort><facets><frbrtype>5</frbrtype><frbrgroupid>cdi_FETCH-LOGICAL-e237t-63bf490bf1a17fd83848f66e43ec264d66d4f75cb86d530376ff36b7e1f21533</frbrgroupid><rsrctype>articles</rsrctype><prefilter>articles</prefilter><language>eng</language><creationdate>1995</creationdate><topic>Alloys</topic><topic>Applied sciences</topic><topic>Carbon monoxide</topic><topic>Chemisorption</topic><topic>Chemistry</topic><topic>Exact sciences and technology</topic><topic>General and physical chemistry</topic><topic>Metals. Metallurgy</topic><topic>Nickel</topic><topic>Oxygen</topic><topic>Photoelectron diffraction</topic><topic>Platinum</topic><topic>Solid-gas interface</topic><topic>Surface physical chemistry</topic><topic>Vibrations of adsorbed molecules</topic><toplevel>peer_reviewed</toplevel><toplevel>online_resources</toplevel><creatorcontrib>Pantförder, A.</creatorcontrib><creatorcontrib>Skonieczny, J.</creatorcontrib><creatorcontrib>Janssen, E.</creatorcontrib><creatorcontrib>Meister, G.</creatorcontrib><creatorcontrib>Goldmann, A.</creatorcontrib><creatorcontrib>Varga, P.</creatorcontrib><collection>Pascal-Francis</collection><jtitle>Surface science</jtitle></facets><delivery><delcategory>Remote Search Resource</delcategory><fulltext>fulltext</fulltext></delivery><addata><au>Pantförder, A.</au><au>Skonieczny, J.</au><au>Janssen, E.</au><au>Meister, G.</au><au>Goldmann, A.</au><au>Varga, P.</au><format>journal</format><genre>article</genre><ristype>JOUR</ristype><atitle>Surface segregation and chemisorption of CO and oxygen on Pt25Ni75(111) studied by XPS and HREELS</atitle><jtitle>Surface science</jtitle><date>1995-07-01</date><risdate>1995</risdate><volume>331-333</volume><spage>824</spage><epage>830</epage><pages>824-830</pages><issn>0039-6028</issn><eissn>1879-2758</eissn><coden>SUSCAS</coden><abstract>After sputtering and annealing to different temperatures TA the chemically disordered (111) surface of a Pt25Ni75 crystal exhibits a composition that depends strongly on TA. 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| ispartof | Surface science, 1995-07, Vol.331-333, p.824-830 |
| issn | 0039-6028 1879-2758 |
| language | eng |
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| source | Access via ScienceDirect (Elsevier) |
| subjects | Alloys Applied sciences Carbon monoxide Chemisorption Chemistry Exact sciences and technology General and physical chemistry Metals. Metallurgy Nickel Oxygen Photoelectron diffraction Platinum Solid-gas interface Surface physical chemistry Vibrations of adsorbed molecules |
| title | Surface segregation and chemisorption of CO and oxygen on Pt25Ni75(111) studied by XPS and HREELS |
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