APPLICATION OF UV-VIS SPECTROSCOPY TO SURFACE REACTIONS OF HYDROCARBONS IN ZEOLITES

被引：7
|
作者：
Foerster, H. [1 ]
Kiricsi, I. [2 ]
机构：
[1] Univ Hamburg, Inst Phys Chem, D-2000 Hamburg 13, Germany
[2] Attila Jozsef Univ, Dept Appl Chem, H-6720 Szeged, Hungary
来源：
CATALYSIS TODAY | 1988年 / 3卷 / 01期
关键词：
D O I：
10.1016/0920-5861(88)80019-1
中图分类号：
O69 [应用化学];
学科分类号：
081704 ;
摘要：
Applicability of UV-VIS spectroscopy for monitoring surface reactions of hydrocarbons in acidic zeolites has been demonstrated by the examples propene/HNaY, cyclohexene/HZSM-5 and neopentane/HNaM. In all cases the presence of alkenyl carbenium ions could be proved, undergoing oligomerization or transformation to poly-enylic carbocations with time of contact or elevated temperatures. At temperatures above 400 K the oligomers are decomposed. In order to get more detailed knowledge on the structure of the carbenium ions involved, complementary UV-VIS and IR studies are proposed.
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页码：65 / 74
页数：10
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