Four-fold hollow site for S in a Ni(100) raft on NiO(100)

Citation
Ap. Woodhead et al., Four-fold hollow site for S in a Ni(100) raft on NiO(100), SURF SCI, 420(2-3), 1999, pp. L138-L142
Citations number
21
Categorie Soggetti
Physical Chemistry/Chemical Physics
Journal title
SURFACE SCIENCE
ISSN journal
00396028 → ACNP
Volume
420
Issue
2-3
Year of publication
1999
Pages
L138 - L142
Database
ISI
SICI code
0039-6028(19990120)420:2-3<L138:FHSFSI>2.0.ZU;2-7
Abstract
The reaction of H2S with NiO(100) has been studied by polarization-dependen t surface EXAFS. The results evidence reduction of the selvedge to form a N i raft having S in four-fold sites with a S-Ni bond length of 2.21+/-0.02 A ngstrom. The Ni-Ni in-plane distance is 2.77+/-0.09 Angstrom, representing a 6+/-4% contraction compared to that in NiO(100). (C) 1999 Elsevier Scienc e B.V. All rights reserved.