| Na-W-Mn/SiO_2催化剂的拉曼光谱研究 |
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| 引用本文： | 季生福,杨华然. Na-W-Mn/SiO_2催化剂的拉曼光谱研究[J]. 光散射学报, 2000, 12(1): 22-26 |
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| 作者姓名： | 季生福 杨华然 |
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| 作者单位： | 1. 中国科学院兰州化学物理研究所,羰基合成与选择氧化国家重点实验室,兰州,730000
2. 布鲁克仪器有限公司,北京,100081 |
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| 基金项目： | 国家重点基础研究发展计划(973计划)，， |
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| 摘 要： | 对含有不同 Na、W、Mn组分的 Na- W- Mn/ Si O2 系列催化剂进行了付里叶变换激光拉曼光谱测定和研究 ,并参考先前的与之相关催化剂的拉曼光谱 ,对它们的特征拉曼吸收谱带进行了归属。结果表明 :960 ,92 8,81 0 ,789cm-1等吸收峰是 Na- W- Mn/ Si O2 催化剂中 Na-O- W物种的特征吸收谱带 ;62 7,577,51 7,478cm-1等吸收峰是 Na- O- Mn物种的特征吸收谱带 ;Na- O- W分布在距催化剂表面较深的体相中 ;Na- O- Mn主要分布在催化剂的表面
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| 关 键 词： | Na-W-Mn/SiO_2催化剂 拉曼光谱 表面 |
| 文章编号： | 1004-5929(2000)01-0022-05 |
| 修稿时间： | 1999-04-07 |
Study on the Laser Raman Spectra of A Series of Na-W-Mn/SiO2 Catalysts |
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| JI Sheng-fu,YANG Hua-ran. Study on the Laser Raman Spectra of A Series of Na-W-Mn/SiO2 Catalysts[J]. Chinese Journal of Light Scattering, 2000, 12(1): 22-26 |
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| Authors: | JI Sheng-fu YANG Hua-ran |
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| Abstract: | The Fourier transformed laser Raman spectra of a series of Na W Mn/SiO 2catalysts with different amount of sodium, tungsten, and manganese were measured and analyzed. The Raman bands of the catalysts were assigned by comparison with a large number of previously studied catalysts of similar structures. It was found that for the Na W Mn/SiO 2catalysts, the bands of the Na O W species were at 960, 928, 810, and 789 cm -1 and the bands for the Na O Mn species were at 627, 577, 517 and 478 cm -1 respectively. The Na O W species exists in the bulk of the catalysts whereas the Na O Mn species is on the surface of the catalysts. |
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| Keywords: | Na-W-Mn/SiO_2catalysts laser Raman spectra surface |
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