Coadsorption of H and CO on Gd(0001)

被引：3
作者：
Getzlaff, M
Bode, M
Wiesendanger, R
机构：
[1] Univ Hamburg, Inst Appl Phys, D-20355 Hamburg, Germany
[2] Univ Hamburg, Microstruct Res Ctr, D-20355 Hamburg, Germany
来源：
APPLIED SURFACE SCIENCE | 1999年 / 142卷 / 1-4期
关键词：
hydrogen; carbon monoxide; gadolinium; adsorption; photoelectron spectroscopy; scanning tunneling microscopy;
D O I：
10.1016/S0169-4332(98)00642-4
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：
We report on the electronic structure of hydrogen and carbon monoxide on Gd(0001) and the development of the adsorption processes studied by means of photoelectron spectroscopy in combination with scanning tunneling microscopy. The adsorption process of a hydrogen covered Gd film being exposed to carbon monoxide consists of five steps. At the beginning the whole amount of adsorbed hydrogen atoms is removed from the surface. In the intermediate regime, carbon and oxygen is adsorbed at or near the surface. The last step demonstrates the oxidation to Gd2O3 acting as a catalyst for the transformation of CO to CO2 which creates stable carbonate species at the surface. This formation occurs also for the adsorption of oxygen and carbon monoxide. The visualization of the adsorption process during specific steps is obtained by STM. (C) 1999 Elsevier Science B.V. All rights reserved.
引用
收藏
页码：428 / 432
页数：5
相关论文
共 50 条
[21]   The Adsorption of Oxygen and Coadsorption of CO and Oxygen on Structurally Well-Defined PdAg Surface Alloys [J].
Farkas, Arnold P. ;
Diemant, Thomas ;
Bansmann, Joachim ;
Behm, R. Juergen .
CHEMPHYSCHEM, 2012, 13 (15) :3516-3525
[22]   Composition dependent selectivity in the coadsorption of H2O and CO on pure and binary silver-gold clusters [J].
Fleischer, Irene ;
Popolan, Denisia M. ;
Krstic, Marjan ;
Bonacic-Koutecky, Vlasta ;
Bernhardt, Thorsten M. .
CHEMICAL PHYSICS LETTERS, 2013, 565 :74-79
[23]   Coadsorption Interfered CO Oxidation over Atomically Dispersed Au on h-BN [J].
Liu, Xin ;
Zhang, Xin ;
Meng, Changgong .
MOLECULES, 2022, 27 (11)
[24]   Bismuth and CO Coadsorption on Platinum Nanoparticles [J].
Figueiredo, Marta C. ;
Melander, Marko ;
Solla-Gullon, Jose ;
Kallio, Tanja ;
Laasonen, Kari .
JOURNAL OF PHYSICAL CHEMISTRY C, 2014, 118 (40) :23100-23110
[25]   DISSOCIATIVE NITROGEN CHEMISORPTION AND BONDING ON GD(0001) [J].
WALDFRIED, C ;
MCILROY, DN ;
LI, DQ ;
PEARSON, J ;
BADER, SD ;
DOWBEN, PA .
SURFACE SCIENCE, 1995, 341 (03) :L1072-L1077
[26]   In Situ Scanning Tunneling Microscopy of the Dissociation of CO on Co(0001) [J].
Boeller, B. ;
Ehrensperger, M. ;
Wintterlin, J. .
ACS CATALYSIS, 2015, 5 (11) :6802-6806
[27]   Cs,O coadsorption on Al0.5Ga0.5N(0001) surface [J].
Ji, Yanjun ;
Bian, Li ;
Liu, Ni ;
Wang, Junping ;
Wang, Caifeng ;
Du, Yujie ;
Liu, Youwen .
MATERIALS SCIENCE IN SEMICONDUCTOR PROCESSING, 2022, 138
[28]   Density functional theory study on the adsorption of H, OH, and CO and coadsorption of CO with H/OH on the Pt2Ru3 surfaces [J].
Alam, Md. Khorshed ;
Saito, Shuhei ;
Takaba, Hiromitsu .
JOURNAL OF MATERIALS RESEARCH, 2016, 31 (17) :2617-2626
[29]   Monte Carlo simulation of CO and O coadsorption and reaction on Pt(111) [J].
Petrova, NV ;
Yakovkin, IN .
SURFACE SCIENCE, 2005, 578 (1-3) :162-173
[30]   Coadsorption of CO and hydrogen on the Cu3Pt(111) surface [J].
Becker, C ;
Wandelt, K .
ZEITSCHRIFT FUR PHYSIKALISCHE CHEMIE-INTERNATIONAL JOURNAL OF RESEARCH IN PHYSICAL CHEMISTRY & CHEMICAL PHYSICS, 1997, 198 :87-98
12345