Carbonaceous deposits on alumina as catalysts and supports

被引:10
作者
Fiedorow, R [1 ]
Franski, R [1 ]
Krawczyk, A [1 ]
Beszterda, S [1 ]
机构
[1] Adam Mickiewicz Univ, Fac Chem, Poznan, Poland
关键词
chemical synthesis;
D O I
10.1016/j.jpcs.2003.08.042
中图分类号
O6 [化学];
学科分类号
0703 ;
摘要
Studies of carbonaceous deposits, intercalated within alumina pores, were carried out from the point of view of their catalytic activity for a number of reactions of alkyl-substituted benzenes. Alumina was not active for ammoxidation of ethylbenzene and m-xylene as well as oxidative dehydrogenation of ethylbenzene until certain amount of the deposit was generated on acid sites of alumina surface. Carbonaceous deposits formed during reactions of decomposition of 2-propanol and hexafluoro-2-propanol were used as supports for platinum catalysts for hydrosilylation of allyl chloride and 1-octene to result in excellent selectivity. Precursor of carbonaceous deposit formed from hexafluoro-2-propanol has been identified and scheme of the deposit formation was proposed. (C) 2003 Elsevier Ltd. All rights reserved.
引用
收藏
页码:627 / 632
页数:6
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