Bulletin of the Korean chemical society | |
CO Adsorption on Mo(110) Studied Using Thermal Desorption Spectroscopy (TDS) and Ultraviolet Photoelectron Spectroscopy (UPS) | |
Jin Hyo Boo1  Soon Bo Lee1  Taek seung Yang1  Young Dok Kim1  Hae geun Jee1  | |
关键词: Chemisorption; CO; Mo(110); Photoemission spectroscopy; | |
DOI : | |
学科分类:化学(综合) | |
来源: Korean Chemical Society | |
【 摘 要 】
This study examined the adsorption of CO on a Mo(110) surface by Thermal Desorption Spectroscopy (TDS) and synchrotron-radiation based photoemission spectroscopy (SRPES). CO desorption was observed at approximately 400 K (�?-CO) and > 900 K (�?-CO). When CO was exposed to Mo(110) at 100 K, it showed a tilted structure at low CO coverage and a vertical structure after saturation of the tilted CO. After heating the CO-precovered sample to 900 K, a broad peak at 12 eV below the Fermi level was identified in the valence level spectra, which was assigned to either the 4�?-molecular orbital of CO, or 2s of dissociated carbon. TDS results of the �?-CO showed a first order desorption. These results are in a good agreement with the observations of CO adsorption on W(110) surfaces.
【 授权许可】
Unknown
【 预 览 】
Files | Size | Format | View |
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RO201912010241625ZK.pdf | 301KB | download |