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Hyperfine Interactions

, Volume 122, Issue 1–2, pp 147–153 | Cite as

Structural studies of supported tin catalysts

  • Noel Nava
  • Tomás Viveros
Article

Abstract

Tin oxide was supported on aluminium oxide, titanium oxide, magnesium oxide and silicon oxide, and the resulting interactions between the components in the prepared samples and after reduction were characterized by Mössbauer spectroscopy. It was observed that in the oxide state, tin is present as SnO2 on alumina, magnesia and silica, but on titania tin occupies Ti sites in the structure. After hydrogen treatment at high temperatures, tin is reduced from Sn(4) to Sn(2) on alumina and titania; it is reduced from Sn(4) to Sn(0) on silica, and is practically not reduced on magnesia. These results reveal the degree of interaction between tin and the different supports studied.

catalyst tin supported Mössbauer spectroscopy 

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Copyright information

© Kluwer Academic Publishers 1999

Authors and Affiliations

  • Noel Nava
    • 1
    • 2
  • Tomás Viveros
    • 2
  1. 1.Instituto Mexicano del Petróleo, Gerencia de CatalizadoresEje Central Lázaro Cárdenas 152México D.F
  2. 2.Universidad Autonoma Metropolitana-Iztapalapa, Area de Ingeniería QuímicaCol. VicentinaMéxico D.F

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