ETHYLENE HYDROGENATION ON NI(111) BY BULK HYDROGEN

被引：114

作者：

DALEY, SP ^{[1
]}

UTZ, AL ^{[1
]}

TRAUTMAN, TR ^{[1
]}

CEYER, ST ^{[1
]}

机构：

[1] MIT, DEPT CHEM, CAMBRIDGE, MA 02139 USA

来源：

JOURNAL OF THE AMERICAN CHEMICAL SOCIETY | 1994年 / 116卷 / 13期

关键词：

D O I：

10.1021/ja00092a074

中图分类号：

O6 [化学];

学科分类号：

0703 ;

摘要：

We report that bulk H atoms, upon moving out from the bulk metal to the surface, readily hydrogenate ethylene adsorbed on Ni(111) to form ethane, while surface-bound H atoms have no hydrogenation activity. This result is the first observation of the role of bulk H specifically as a reactant in the hydrogenation of an unsaturated hydrocarbon on a transition metal and calls into question the generality of the Horiuti-Polanyi mechanism for catalytic hydrogenation reactions. This result is also a plausible molecular level basis for the correlation between the hydrogenation activity of a Raney Ni catalyst and the H content in the catalyst.

引用

页码：6001 / 6002

页数：2

共 18 条

[1]

ALEFELD G, 1978, HYDROGEN METALS, V1, P326

[2] SURFACE RECONSTRUCTION AND SURFACE EXPLOSION PHENOMENA IN THE NICKEL (110) HYDROGEN SYSTEM [J].