| 四丁基锡在Pt/HY分子筛表面的接枝反应及其催化性能的研究 |
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| 引用本文： | 郑瑛,王绪绪,付贤智,魏可镁,Zheng Ying,Wang Xuxu,Fu Xianzhi,Wei Kemei.四丁基锡在Pt/HY分子筛表面的接枝反应及其催化性能的研究[J].石油化工,2005,34(3):213-217. |
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| 作者姓名： | 郑瑛 王绪绪 付贤智 魏可镁 Zheng Ying Wang Xuxu Fu Xianzhi Wei Kemei |
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| 作者单位： | 1. 福州大学,化肥催化剂国家工程研究中心,福建,福州,350002;福建师范大学,化学与材料学院,福建;福州;350007
2. 福州大学,化肥催化剂国家工程研究中心,福建,福州,350002 |
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| 基金项目： | 国家自然科学基金资助项目(20173009)，福建省科技厅资助项目(K04033) |
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| 摘 要： | 研究了真空条件下四丁基锡(SnBu4)在Pt/HY分子筛超笼表面的接枝反应,并用元素分析、ICP、GC-MS、XRD、FTIR、TG、BET、UV-Vis等方法对产物的组成、结构和性质进行了表征。研究结果表明,SnBu4与Pt/HY分子筛表面羟基可以定量、有选择性地进行化学反应,将确定数目的SnBu3碎片接枝在分子筛的超笼中。经SnBu4改性后的Pt/HY分子筛的骨架结构没有被破坏,接枝反应发生在分子筛表面,BET比表面积和孔体积变小,表面性质发生变化。将改性后的Pt/HY分子筛应用于糠醛气相氢化反应,糠醇的选择性明显增加。
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| 关 键 词： | 表面金属有机化学 四丁基锡 HY分子筛 接枝 催化 糠醛 糠醇 |
| 文章编号： | 1000-8144(2005)03-0213-05 |
| 修稿时间： | 2004年11月2日 |
Grafting Reaction of Tetrabutyl Tin on Surface of Pt/HY Molecular Sieve Supercage and Performance of the Catalyst |
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| Zheng Ying ,Wang Xuxu,Fu Xianzhi,Wei Kemei.Grafting Reaction of Tetrabutyl Tin on Surface of Pt/HY Molecular Sieve Supercage and Performance of the Catalyst[J].Petrochemical Technology,2005,34(3):213-217. |
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| Authors: | Zheng Ying Wang Xuxu Fu Xianzhi Wei Kemei |
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| Affiliation: | Zheng Ying 1,2,Wang Xuxu1,Fu Xianzhi1,Wei Kemei1 |
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| Abstract: | The grafting reaction of tetrabutyl tin(SnBu_4)on surface of Pt/HY molecular sieve supercages was studied in vacuum.Composition and structure of the resultant were characterized by FTIR,XRD,UV-Vis,TPR,TPD,TG,BET,ICP,elemental analysis and GC-MS.SnBu_4 could react with superficial hydroxy group of Pt/HY molecular sieve,to result selective and quantitative grafting of SnBu_3 fragments onto surface of molecular sieve supercages without deteriorating crystalline structure of the latter.Grafted Pt/HY molecular sieve was quite different from the original in adsorption behavior.The modified Pt/HY molecular sieve,as catalyst,was used in hydrogenation of furfural to furfuryl alcohol.Selectivity of the alcohol on modified Pt/HY molecular sieve with tetrabutyl tin was higher than that on unmodifide. |
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| Keywords: | surface organometallic chemistry tetrabutyl tin HY molecular sieve grafting reaction catalysis furfural furfuryl alcohol |
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