Citation
Me. Castro et al., DIRECT ABSTRACTION OF SURFACE-BOUND HYDROGEN ON NI(111) BY FREE METHYL RADICALS, JOURNAL OF PHYSICAL CHEMISTRY B, 101(41), 1997, pp. 8048-8051
Citations number
49
Categorie Soggetti
Chemistry Physical
Journal title
JOURNAL OF PHYSICAL CHEMISTRY B
ISSN journal
15206106
→ ACNP
Volume
101
Issue
41
Year of publication
1997
Pages
8048 - 8051
Database
ISI
SICI code
1089-5647(1997)101:41<8048:DAOSHO>2.0.ZU;2-C
Abstract
Methane (CH3D) is formed directly by abstraction by methyl radicals of
adsorbed D on a Ni(lll) surface. This reaction occurs at a surface te
mperature of 120 K and in the presence of open metal binding sites. A
direct reaction by unaccommodated methyl radicals is involved, since a
ccommodated methyl radicals on Ni(lll) react only above 200 K. Modelin
g efforts show that the cross section for accommodation of methyl radi
cals to open metal sites is approximately five times larger than that
for D abstraction.