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State of Sn in Pt-Sn-alumina catalyst: XPS study

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Abstract

XPS examination of reduced Pt-Sn-alumina catalysts showed that a portion of the tin was present in the zerovalent state; this is in contrast to XPS data published previously. It appears from the XPS Sn(O) and Pt(O) areas that the composition of the PtSn alloy, if present, becomes richer in Sn as the Pt:Sn ratio varies from 1∶1 to 1∶8.

Abstract

РФЭС восстановленных катализаторов Pt-Sn/Al2O3 свидетельствует о том, что часть олова находится в нулевом валентном состоянии, что находится в противоречии с до сих пор опубликованными литературными данными. Из площадей Sn(O) и Pt(O) спектров РФЭС оказалось, что при наличии сплава Pt со Sn, его состав становится обогащенным Sn при изменении соотношения Pt:Sn от 1:1 до 1:8.

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Authors and Affiliations

  1. Kentucky Energy Cabinet Laboratory, P.O. Box 13015, 40512, Lexington, Kentucky, USA

    Yong-Xi Li, John M. Stencel & Burtron H. Davis

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  1. Yong-Xi Li
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  2. John M. Stencel
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  3. Burtron H. Davis
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Li, YX., Stencel, J.M. & Davis, B.H. State of Sn in Pt-Sn-alumina catalyst: XPS study. React Kinet Catal Lett 37, 273–280 (1988). https://doi.org/10.1007/BF02062070

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  • DOI: https://doi.org/10.1007/BF02062070

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