New approaches to prepare supported Sn-Pt bimetallic catalysts

被引：18

作者：

Margitfalvi, JL ^{[1
]}

Borbáth, I ^{[1
]}

Hegedüs, M ^{[1
]}

Gobölös, S ^{[1
]}

Lónyi, F ^{[1
]}

机构：

[1] Hungarian Acad Sci, Chem Res Ctr, Inst Chem, H-1525 Budapest, Hungary

来源：

REACTION KINETICS AND CATALYSIS LETTERS | 1999年 / 68卷 / 01期

基金：

匈牙利科学研究基金会;

关键词：

controlled surface reactions; tin tetraethyl; n-hexane; Pt/Al2O3; Sn-Pt/Al2O3;

D O I：

10.1007/BF02475495

中图分类号：

O64 [物理化学（理论化学）、化学物理学];

学科分类号：

070304 ; 081704 ;

摘要：

General principles of modification of supported Pt catalysts with tin tetraalkyls are summarized and a new approach to prepare supported Sn-Pt catalysts is described. The new approach leads to the formation of Multilayered Organometallic Complexes (MLOC) anchored onto supported platinum. The formed MLOC can be decomposed either in reductive or oxidative atmosphere with the formation of new type of supported Sn-Pt catalysts with high Sn/Pt-s ratios. The decomposition in a reductive atmosphere leads to the formation of alloy-type bimetallic phases, while the decomposition in the presence of oxygen provides Lewis-acid type surface species anchored to supported platinum.

引用

页码：133 / 143

页数：11

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