PHOTOINDUCED DISSOCIATION AND DESORPTION OF N2O ON A PT(111) SURFACE

被引:36
作者
KISS, J
LENNON, D
JO, SK
WHITE, JM
机构
[1] UNIV TEXAS,DEPT CHEM,AUSTIN,TX 78712
[2] UNIV TEXAS,CTR MAT CHEM,AUSTIN,TX 78712
[3] ATTILA JOZSEF UNIV,HUNGARIAN ACAD SCI,REACT KINET RES GRP,H-6701 SZEGED,HUNGARY
关键词
D O I
10.1021/j100174a012
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
N2O adsorbed on a Pt(111) surface was irradiated by UV light from a mercury arc lamp. The photochemistry of N2O was studied by XPS, UPS, and TPD. Upon irradiation at 50 K, adsorbed N2O undergoes dissociation and desorption. Photon energies exceeding 4.35 eV are required. The cross section is in the range of 10(-19)-10(-20) cm2. The data are adequately described with a model involving subvacuum hot electrons.
引用
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页码:8054 / 8059
页数:6
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