Photon induced reaction at the CO2/K/Cu(110) interface

被引：8

作者：

Jorgensen, ME ^{[1
]}

Godowski, PJ ^{[1
]}

Onsgaard, J ^{[1
]}

机构：

[1] POLISH ACAD SCI, W TRZEBIATOWSKI INST LOW TEMP & STRUCT RES, PL-50950 WROCLAW, POLAND

来源：

VACUUM | 1997年 / 48卷 / 3-4期

关键词：

D O I：

10.1016/S0042-207X(96)00277-1

中图分类号：

T [工业技术];

学科分类号：

08 ;

摘要：

The coadsorption of CO2 and K on Cu(110) has been studied for K coverages in the range 0-2 monolayers. Both physisorbed and reacted states of CO2 are observed in the thermally programmed desorption spectra when the adsorption takes place at 117 K. Photon irradiation over a broad energy range, 2-1486 eV, gives rise to a photochemical process where physisorbed CO2 is transformed to chemisorbed CO2. The mechanism of the process is generation of secondary electrons that are captured by weakly bounded CO2 molecules. Afterwards the CO2 anions decay by dissociation. (C) 1997 Elsevier Science Ltd.

引用

页码：299 / 304

页数：6

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