Decomposition of NH3 on Ru(11(2)over-bar1)

被引：35

作者：

Dietrich, H ^{[1
]}

Jacobi, K ^{[1
]}

Ertl, G ^{[1
]}

机构：

[1] MAX PLANCK GESELL,FRITZ HABER INST,D-14195 BERLIN,GERMANY

来源：

SURFACE SCIENCE | 1996年 / 352卷

关键词：

chemisorption; dissociation; electron energy loss spectroscopy; high index single crystal surfaces; ruthenium; thermal desorption spectroscopy; vibrations of adsorbed molecules;

D O I：

10.1016/0039-6028(95)01120-X

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：

The thermal decomposition of NH3 was studied on the open Ru(11 (2) over bar 1) surface using high-resolution electron energy loss spectroscopy (HREELS) and thermal desorption spectroscopy (TDS), For small NH3 coverages up to 0.25 of a monolayer, NH3 decomposes completely during annealing of the sample. At higher coverages molecular desorption is also observed. The dehydrogenation gives rise to sharp peaks in the H-2 TD spectra. NH2, NH, and N are identified using HREELS. A translational mode of NH3 is observed at 15 meV.

引用

页码：138 / 141

页数：4

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