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This paper reports a study of PtSn/TiO 2 catalysts reduced at two different temperatures (473 and 773K) by infrared spectroscopy of CO adsorbed at 298K and XPS, as well as their behaviour in the vapour phase selective hydrogenation of crotonaldehyde at 333K. Catalysts with 2wt% Pt and different Pt:Sn atomic ratios were prepared by co-impregnation of a commercial TiO 2 (P25, from Degussa)...
PtSn/TiO 2 catalysts containing 2wt% Pt and a Pt:Sn atomic ratio of 2:1 and 1:1 were prepared by coimpregnation or successive impregnation method with aqueous solutions of SnCl 2 ·2H 2 O and H 2 PtCl 6 ·6H 2 O of a commercial TiO 2 (P25, from Degussa). Both catalyst series, independent of the preparation method, were reduced at 473 and 773K....
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