HYDROGEN VIBRATIONS ON THE RU(001) SURFACE REVISITED

被引：44

作者：

SHI, H ^{[1
]}

JACOBI, K ^{[1
]}

机构：

[1] MAX PLANCK GESELL,FRITZ HABER INST,FARADAYWEG 4-6,D-14195 BERLIN,GERMANY

来源：

SURFACE SCIENCE | 1994年 / 313卷 / 03期

关键词：

D O I：

10.1016/0039-6028(94)90049-3

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 vibrations of H chemisorbed on the Ru(001) surface at 90 K were studied using high-resolution electron energy loss spectroscopy (HREELS) and thermal desorption spectroscopy (TDS). Several different sets of vibrational losses were observed as a function of H coverage theta(H). For theta(H) < 0.3 a single loss was observed at 85 meV assigned to the Ru-H stretching mode and compatible with a threefold hollow site. At saturation coverage (theta(H) almost-equal-to 1) three modes were found at 90, 102 and 141 meV, indicating a reduced symmetry of the adsorption site.

引用

页码：289 / 294

页数：6

共 16 条

[11] A STUDY OF THE ADSORPTION SITES OF HYDROGEN ON RU(001) AT SATURATION COVERAGE BY ELECTRON REFLECTION [J].

LINDROOS, M ;

PFNUR, H ;

FEULNER, P ;

MENZEL, D .

SURFACE SCIENCE, 1987, 180 (01) :237-251

[12] INVESTIGATION OF A DISORDERED ADSORPTION SYSTEM BY ELECTRON REFLECTION - H/RU(001) AT INTERMEDIATE COVERAGES [J].

LINDROOS, M ;

PFNUR, H ;

MENZEL, D .

SURFACE SCIENCE, 1987, 192 (2-3) :421-437

[13] HYDROGEN CHEMISORBED ON NICKEL SURFACES - A WAVE-MECHANICAL TREATMENT OF PROTON MOTION [J].

PUSKA, MJ ;

NIEMINEN, RM .

SURFACE SCIENCE, 1985, 157 (2-3) :413-435

[14] CESIUM OXYGEN COADSORPTION ON RU(001) [J].

SHI, H ;

JACOBI, K ;

ERTL, G .

SURFACE SCIENCE, 1992, 269 :682-686

[15] DISSOCIATIVE CHEMISORPTION OF NITROGEN ON RU(0001) [J].

SHI, H ;

JACOBI, K ;

ERTL, G .

JOURNAL OF CHEMICAL PHYSICS, 1993, 99 (11) :9248-9254

[16] ORDERED STRUCTURES AND PHASE-DIAGRAM OF ATOMIC-HYDROGEN CHEMISORBED ON RUTHENIUM (001) [J].

SOKOLOWSKI, M ;

KOCH, T ;

PFNUR, H .

SURFACE SCIENCE, 1991, 243 (1-3) :261-272

← 1 2 →