ChemInform Abstract: Mößbauer Spectroscopic and Chemical Analysis of the Composition of Sn‐Containing Components of Pt‐Sn/Al₂O₃(Cl) Reforming Catalyst.

Abstract

The genesis of the states of Sn‐containing components of catalysts prepared by impregnating the pre.

Characterization and catalytic performance of a bimetallic Pt–Sn/HZSM-5 catalyst used in denitratation of drinking water

“…The average parameters of this doublet fall in the typical range for divalent tin compounds, although they are different from those of Sn(II) oxides and hydroxides [43] and from those obtained for oxidic Sn(II) in previous studies of Pt-Sn catalysts [44][45][46][47][48], which were mainly prepared by impregnation. The difference lies mainly in the value of the quadrupole splitting, which is smaller than the values obtained in previous studies, while the values of the isomer shift are comparable.…”

Catalysts for Methanol Oxidation

“…Early in 1989, Kuznetsov et al [40] suggested that nearly all alloys between Pt and Sn are possible. However, the situation is complicated because Pt and Sn also form the intermetallic phases Pt 3 Sn, PtSn, Pt 2 Sn 3 , PtSn 2 and PtSn 4 .…”

Pt-Sn Catalysts for Ethanol Oxidation in Fuel Cell Systems: Effect of reducing choice

“…Platinum and tin form five bimetallic intermetallic phases, Pt 3 Sn, PtSn, Pt 2 Sn 3 , PtSn 2 , and PtSn 4 , of which Pt 3 Sn and PtSn are congruently melting compositions. These intermetallic phases are distinguished by distinct crystalline structures (Kuznetsov et al, 1986). So, the shift of the fcc Pt peaks of Pt-Sn/C catalysts to lower angles than pure Pt should reveal the formation of a solid solution between Pt and Sn due to the incorporation of Sn in the fcc structure of Pt as a function of preparation method.…”