The formation and reaction of alkylidynes on Ni/Al2O3

被引：7

作者：

Marshall, Peter R. ^{[1
]}

McDougall, Gordon S. ^{[1
]}

Hadden, Raymond A. ^{[2
]}

机构：

[1] Univ Edinburgh, Dept Chem, Edinburgh EH9 3JJ, Midlothian, Scotland

[2] ICI Katalco, Res Technol & Engn, Billingham TS23 1LB, Cleveland, England

来源：

TOPICS IN CATALYSIS | 1994年 / 1卷 / 1-2期

关键词：

Alkylidynes; nickel catalysts; diffuse reflectance infrared spectroscopy; butene;

D O I：

10.1007/BF01379571

中图分类号：

O69 [应用化学];

学科分类号：

081704 ;

摘要：

Adsorption of the alkenes, ethene and propene on Ni/Al2O3 at 298 K gives initial formation of the corresponding alkylidyne while but-1-ene adsorption forms a mixed phase of trans and gauche butylidyne conformers. The alkylidynes are, however, unstable at this temperature and decompose to lower hydrocarbon fragments. Ethylidyne forms a surface methyl species whereas propylidyne decays to first ethylidyne and, in turn, to methyl. The two butylidynes decompose at substantially different rates forming, again, ethylidyne.

引用

页码：9 / 18

页数：10

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