摘要
Temperature-programmed desorption (TPD) and X-ray photoelectron spectroscopy (XPS) have been employed to study the adsorption and photon-induced decomposition of Mo(CO)6. Mo(CO)6 adsorbs molecularly on a Pt(111) surface with weak interaction at 100 K and desorbs intact at 210 K without undergoing thermal decomposition. Adsorbed Mo(CO)6 undergoes decarbonylation to form surface Mo(CO)x (x ≤ 5) under irradiation of ultraviolet light. The Mo(CO)x species can release further CO ligands to form Mo adatoms with CO desorption at 285 K. In addition, a fraction of the released CO ligands transfers onto the Pt surface and subsequently desorbs at 350-550 K. The resulting Mo layer deposited on the Pt surface is nearly free of contamination by C and O. The deposited Mo adatoms can diffuse into the bulk Pt at temperatures above 1070 K.
| 原文 | 英語 |
|---|---|
| 頁(從 - 到) | 81-88 |
| 頁數 | 8 |
| 期刊 | Surface Science |
| 卷 | 565 |
| 發行號 | 1 |
| DOIs | |
| 出版狀態 | 已發佈 - 2004 9月 1 |
ASJC Scopus subject areas
- 凝聚態物理學
- 表面和介面
- 表面、塗料和薄膜
- 材料化學
指紋
深入研究「Photon-induced chemical vapor deposition of molybdenum on Pt(1 1 1)」主題。共同形成了獨特的指紋。引用此
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