| NO分子在钙钛矿表面吸附的红外光谱分析 |
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| 引用本文： | 孙永安,王晓晖. NO分子在钙钛矿表面吸附的红外光谱分析[J]. 光谱实验室, 2007, 24(4): 590-592 |
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| 作者姓名： | 孙永安 王晓晖 |
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| 作者单位： | 内蒙古民族大学化学学院,内蒙古通辽市,028043 |
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| 摘 要： | 用柠檬酸络合法合成了LaMnO3、LaCoO3和LaFeO3.NO分子红外光谱表明在上述化合物中存在不同类型的不饱和配位阳离子.对于LaFeO3来说,不饱和配位Fe2 的出现与表面缺陷有关;对于LaCoO3和LaMnO3表面来说,主要是不饱和配位Me3 与氧的配位性更强.
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| 关 键 词： | 红外光谱 一氧化氮吸附 钙钛矿 |
| 文章编号： | 1004-8138（2007）04-0590-03 |
| 修稿时间： | 2006-12-19 |
Infrared Spectrum Analysis of Adsorbed NO Molecule on Perovskite Surface |
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| SUN Yong-An,WANG Xiao-Hui. Infrared Spectrum Analysis of Adsorbed NO Molecule on Perovskite Surface[J]. Chinese Journal of Spectroscopy Laboratory, 2007, 24(4): 590-592 |
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| Authors: | SUN Yong-An WANG Xiao-Hui |
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| Affiliation: | College of Chemistry, Inner Mongolia University for Nationalities, Tongliao, Innermongolia 028043, P. R. China |
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| Abstract: | Single phase perovskite rare earth composite oxides LaMnO3,LaCoO3 and LaFeO3 were prepared by citric acid complex method.IR spectroscopy of adsorbed NO revealed a variety of types of coordinatively unsaturated surface cations for lanthanum cobaltites,manganites,and ferrites,some of which emerge due to room-temperature surface reduction by the absorbed NO molecule.For the surface of LaFeO3,clusters of coordinatively unsaturated Fe2 cations associated with surface defects dominate.For the surface of LaMnO3 and LaCoO3,coordinatively unsaturated Me3 cations are mainly revealed being more coordinated by oxygen for the former system. |
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| Keywords: | IR Adsorbed NO Perovskite |
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