光谱学与光谱分析 |
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Study of Methanol Adsorption on Zirconia Polymorphs by FTIR |
MA Zhong-yi1, 2,DONG Qing-nian1,YANG Cheng1,WEI Wei1,CHEN Jian-gang1,SUN Yu-han1 |
1. State Key Laboratory of Coal Conversion, Institute of Coal Chemistry, Chinese Academy of Sciences, Taiyuan 030001, China 2. Graduate school of Chinese Academy of Sciences, Beijing 100039, China |
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Abstract The influence of zirconia polymorphs on methanol adsorption was investigated by FTIR technique. One terminal and two types of bridged methoxyl were formed on the am-ZrO2 and t-ZrO2 samples, while another tribridged methoxyl species was detected on the m-ZrO2 sample. During the formation of methoxyl, bridged hydroxyl species on the am-ZrO2 and m-ZrO2 was more active, while the terminal one on the t-ZrO2 sample was more active. The methoxyl was oxygenated by surface oxygen ions to be formate and further to be carbonate on the m-ZrO2 and am-ZrO2 samples. But for t-ZrO2,methoxyl could be directly oxygenated to be carbonate at RT, which implied that the surface oxygen ions on t-ZrO2 were more active than those on the two other samples.
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Received: 2004-12-28
Accepted: 2005-05-08
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Corresponding Authors:
SUN Yu-han
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Cite this article: |
MA Zhong-yi,DONG Qing-nian,YANG Cheng, et al. Study of Methanol Adsorption on Zirconia Polymorphs by FTIR[J]. SPECTROSCOPY AND SPECTRAL ANALYSIS, 2006, 26(03): 422-425.
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URL: |
https://www.gpxygpfx.com/EN/Y2006/V26/I03/422 |
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