Vibrational measurements of Na/Ni(111) and (Na + CO)/Ni(111)

被引：5

作者：

Politano, A. ^{[1
]}

Agostino, R. G. ^{[1
]}

Colavita, E. ^{[1
]}

Formoso, V. ^{[1
]}

Tenuta, L. ^{[1
]}

Chiarello, G. ^{[1
]}

机构：

[1] Univ Calabria, Dipartimento Fis, Consorzio Nazl Interuniv Sci Fis Mat, I-87036 Cosenza, Italy

来源：

JOURNAL OF MATERIALS SCIENCE | 2008年 / 43卷 / 10期

关键词：

D O I：

10.1007/s10853-007-2281-7

中图分类号：

T [工业技术];

学科分类号：

08 ;

摘要：

The vibrational properties of Na atoms and of Na coadsorbed with CO on Ni(111) have been studied by high-resolution electron energy loss spectroscopy. Loss measurements showed a significant weakening of the alkali-substrate bond as a function of the alkali coverage. Moreover, we found that coadsorbed CO molecules dramatically influence the vibrational properties of Na adatoms. The Na-Ni stretching frequency (22 meV) measured on the Na/Ni(111) system shifted down to 13 meV for the (Na + CO)/Ni(111) surface. This unexpected result was ascribed to a charge transfer from Na to CO. Present findings give new insights on the nature of the alkali-substrate and alkali-CO bond.

引用

页码：3447 / 3451

页数：5

共 50 条

[31] INTERACTION OF ACETYLENE WITH NI(111), CHEMISORBED OXYGEN ON NI(111), AND NIO(111) - FORMATION OF CH SPECIES ON CHEMICALLY MODIFIED NI(111) SURFACES
DEMUTH, JE
SURFACE SCIENCE, 1977, 69 (02) : 365 - 384
[32] MAGNETIC ANISOTROPIES IN CO/NI(111) MULTILAYERS
BLOEMEN, PJH
DEJONGE, WJM
DENBROEDER, FJA
JOURNAL OF APPLIED PHYSICS, 1992, 72 (10) : 4840 - 4844
[33] ABSOLUTE COVERAGE DETERMINATION OF CO ON NI(111)
ERLEY, W
BESOCKE, K
WAGNER, H
JOURNAL OF CHEMICAL PHYSICS, 1977, 66 (12): : 5269 - 5273
[34] CO ADSORPTION ON STEPPED NI(111) SURFACES
BENNDORF, C
MEYER, L
JOURNAL OF VACUUM SCIENCE & TECHNOLOGY A-VACUUM SURFACES AND FILMS, 1990, 8 (03): : 2677 - 2679
[35] Displacement reaction of CO by NO on the Ni(111) surface
Beniya, Atsushi
Isomura, Noritake
Hirata, Hirohito
Watanabe, Yoshihide
SURFACE SCIENCE, 2013, 613 : 28 - 34
[36] CO adsorption on nanoislands: Ni on Au(111)
Cohen, Joshua I.
Tobin, R. G.
JOURNAL OF CHEMICAL PHYSICS, 2018, 148 (22):
[37] Alloy formation of Co/Ni/Pt(111)
Ho, H. Y.
Lin, Y. S.
Huang, E. J.
Chen, Y. J.
Shern, C. S.
SURFACE SCIENCE, 2007, 601 (03) : 615 - 621
[38] PHOTODESORPTION DYNAMICS OF AMMONIA FROM NI(111) AND NIO/NI(111)
MACKAY, RS
JUNKER, KH
WHITE, JM
JOURNAL OF VACUUM SCIENCE & TECHNOLOGY A-VACUUM SURFACES AND FILMS, 1994, 12 (04): : 2293 - 2297
[39] CO/NA COADSORPTION ON CU(111) STUDIED BY HREELS
SVENSSON, C
SURFACE SCIENCE, 1995, 331 : 75 - 79
[40] ADSORPTION AND DISSOCIATION OF CO ON NI(111) AND STEPPED NI(111) - AN EXTENDED HUCKEL MOLECULAR-ORBITAL INVESTIGATION
VANLANGEVELD, AD
DEKOSTER, A
VANSANTEN, RA
SURFACE SCIENCE, 1990, 225 (1-2) : 143 - 150

← 1 2 3 4 5 →