| 翟润生,田志坚.乙醇在Mn薄膜／Rh（100）上吸附和分解的研究[J].分子催化,2001,(3):187-190 |
| 乙醇在Mn薄膜／Rh（100）上吸附和分解的研究 |
| Adsorption and Decomposition of Ethanol on the Film of Mn/Rh(100) by HREELS and TDS |
| 修订日期：2000-09-18 |
| DOI： |
| 中文关键词: 乙醇 吸附 高分辨电子能量损失谱 热脱附谱 分解 一氧化碳 锰薄膜 铑催化剂 |
| 英文关键词:Ethanol adsorption,Mn films,Rh(100) surface,High Resolution Electron Energy Loss Spectroscopy,Thermal Desorption Spectroscopy |
| 基金项目:国家自然科学基金委，中国科学院资助课题 (批准号 :2 98730 48,2 97730 47) |
| 翟润生 田志坚 |
| [1]中国科学院大连化学物理研究所，催化基础重点实验室，辽宁大连116023 [2]中国科学院大连化学物理研究所，催化基 |
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| 中文摘要: |
| 应用高分辨电子能量损失谱（HREELS）和热脱附谱（TDS），研究了Mn薄膜／Rh(100)上乙醇的吸附和分解，提出了表面吸附和分解的反应工，在300K时，蒸镀的Mn在清洁Rh(100)表面上以层层模式生长；在130－300K间，在25mLMn/Rh(100)表面上吸附20L乙醇的TDS结果与乙醇在Rh(100)表面上的结果一致在155K处，脱附出多层凝聚态吸附的乙醇；升温到255K，脱附出H2和CH4，继续升温，出现了与乙醇在R (100)表面上不一致的现象，在470K，同时出现了第2个H2和CH4的脱附峰，在500K，脱附极少量的CO；在950K附近，脱附出大量CO。 |
| 英文摘要: |
| Adsorption and decomposition of ethanol on the film of Mn/Rh(100) have been studied by high\|resolution electron energy loss spectroscopy (HREELS) and thermal desorption spectroscopy (TDS). At 300 K, the trends of the Mn deposited on clean Rh(100) surface are in good consistence with a model of layer\|by\|layer growth. Between 130 and 300 K, the TDS results of the exposure of 20 L ethanol on \{Rh(100)\} surface with deposited 25 mL Mn films are the same as those of the exposure of 20 L ethanol on clean Rh(100) surface. The ethanol multilayers on the Mn films are desorbed at 155 K, and when the temperature increased to 255 K, the desorption of H\-2 and CH\-4 adsorbed on the Mn films occurs. Upon heating, some differences of the results of 20 L ethanol on clean Rh(100) surface appear. At 470 K, the desorption peaks of H\-2 and CH\-4 appear again and the temperatures of desorption are also the same. Comparing with the desorption peaks of CO at about 900 K, the desorption peaks of CO at 500 K are rather small. |
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