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Studies of the state and catalytic properties of platinum and tin in prereduced Pt?Sn/ZnAl2O4 and Pt?Sn/MgAl2O4 catalysts |
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| Authors: | N A Pakhomov R A Buyanov E M Moroz E N Yurchenko A P Chernyshev N A Zaitseva and G R Kotelnikov |
| Institution: | (1) Institute of Catalysis, Novosibirsk, USSR |
| Abstract: | X-ray diffraction and Mössbauer spectroscopy studies indicate that the thermal pretreatment of Pt–Sn catalysts supported on ZnAl2O4 and MgAl2O4 spinels, in the reduction medium leads to the formation of coarse-disperse particles of PtSn, Pt2Sn3 and PtSn2 alloys, which deactivate the catalysts.
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