PHOTON-DRIVEN CHEMISTRY IN COADSORBED N2O AND CO ON PT(111)

被引：11
|
作者：
KISS, J
WHITE, JM
机构：
[1] UNIV TEXAS,DEPT CHEM & BIOCHEM,AUSTIN,TX 78712
[2] ATTILA JOZSEF UNIV,HUNGARIAN ACAD SCI,REACT KINET RES GRP,H-6701 SZEGED,HUNGARY
来源：
JOURNAL OF PHYSICAL CHEMISTRY | 1991年 / 95卷 / 20期
关键词：
D O I：
10.1021/j100173a055
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 ultraviolet photon-driven chemistry of coadsorbed nitrous oxide and carbon monoxide on Pt(111) at 47 K has been investigated by X-ray photoelectron spectroscopy, ultraviolet photoelectron spectroscopy, and temperature-programmed desorption. Evidence is presented for the formation of CO2 from photoexcited N2O reacting with CO. The results depend on the order of adsorption. When N2O is adsorbed on a monolayer of CO at 47 K, the photon-driven production of CO2 is not detectable. For dosing in the opposite order, reaction induced by photons is easily detected and, when CO is dosed on a monolayer of N2O at 47 K, about 80% of the N2O is displaced into the second layer.
引用
收藏
页码：7852 / 7857
页数：6
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