| Cr-MCM-41分子筛的合成、 表征及其催化性能[HT][HT4F] |
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| 引用本文： | 庄红,周广栋,刘涛,毕颖丽,程铁欣,甄开吉.Cr-MCM-41分子筛的合成、 表征及其催化性能[HT][HT4F][J].吉林大学学报(理学版),2004,42(3):447-450. |
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| 作者姓名： | 庄红 周广栋 刘涛 毕颖丽 程铁欣 甄开吉 |
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| 作者单位： | 1. 吉林大学化学学院物理化学研究所， 长春 130023； 2.长春中医学院药学院， 长春 130117；3. 中国科学院高能物理研究所同步辐射实验室, 北京 100039 |
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| 基金项目： | 国家自然科学基金(批准号:29873018). |
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| 摘 要： | 合成了一系列掺杂Cr的MCM-41分子筛， 并用XRD, IR和EXAFS等手段表征了催化剂. 实验结果表明， 一部分Cr离子进入到MCM-41骨架， 另一部分Cr离子以其他Cr化合物形式存在且这部分铬可通过NH4Ac溶液洗去. Cr-MCM-41和Cr-MCM-41-t催化剂在十八醇选择 氧化反应的几个循环中表现了稳定的十八醇转化率和十八酸选择性.
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| 关 键 词： | Cr-MCM-41分子筛 十八醇 催化氧化 EXAFS |
| 文章编号： | 1671-5489(2004)03-0447-04 |
| 收稿时间： | 2004-02-18 |
| 修稿时间： | 2004年2月18日 |
Synthesis,characterization and catalytic properties of Cr-MCM-41 molecular sieves |
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| ZHUANG Hong.Synthesis,characterization and catalytic properties of Cr-MCM-41 molecular sieves[J].Journal of Jilin University: Sci Ed,2004,42(3):447-450. |
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| Authors: | ZHUANG Hong |
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| Institution: | 1. Institute of Physical Chemistry, College of Chemistry, Jilin University, Changchun 130023, China; ２． College of Chinese Pharmacy, Changchun College of Traditional Chinese Medicine, Changchun 130117, China; ３. Beijing Synchrotron Radiation Laboratory, Institute of High Energy Physics, Chinese Academy of Sciences, Beijing 100039, China |
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| Abstract: | A series of Cr-containing MCM-41 molecular sieves has been synthesized and characterized by XRD, IR and Extend X-ray Absorption Fine Structure(EXAFS) techniques. It has been shown that a certain amount of chromium ions has been incorporated into the framework of MCM-41 and the rest part of the contained Cr ions still existed as other types of Cr-containing compounds, which can be washed off by a NH_4Ac solution. The (octadecan-)1-ol conversion and (octadecanoic) acid selectivity are not decreased after Cr-MCM-41 and Cr-MCM-41-t catalysts have been repeatedly used for the selective oxidation of octadecan-1-ol to octadecanoic acid. |
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| Keywords: | Cr-MCM-41 molecular sieve octadecan-1-ol catalytic oxidation EXAFS |
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