| Ti在TiY分子筛骨架中的稳定性研究 |
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| 引用本文： | 陈然,沈志虹,齐欣,齐颖,李聃.Ti在TiY分子筛骨架中的稳定性研究[J].分子催化,2009,23(1). |
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| 作者姓名： | 陈然 沈志虹 齐欣 齐颖 李聃 |
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| 作者单位： | 中国石油大学(北京)中国石油天然气集团公司催化重点实验室,北京,102249 |
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| 基金项目： | 国家重点基础研究发展规划(973计划) |
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| 摘 要： | 采用水热法直接合成了含过渡金属Ti的杂原TiY分子筛,并通过x射线衍射仪(XRD)、X射线荧光光谱分析(xRF)、紫外可见漫反射(UV-vis-DRs)和x射线光电子能谱(XPS)对经过超稳和水热处理前后的TiY分子筛进行了表征.结果表明:少量杂原子Ti进入到分子筛的骨架后,不影响Y分子筛的晶型,水热前后TiY分子筛中的Ti含量基本相同,且水热处理后TiY分子筛中的大部分Ti仍处于分子筛骨架上.说明杂原子Ti在TiY分子筛中具有良好的骨架稳定性.
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| 关 键 词： | 杂原子Ti TiY分子筛 骨架稳定性 |
Stability of Hetero-atom Titanium in Framework of Zeolite TiY |
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| CHEN Ran,SHEN Zhi-hong,QI Xin,QI Ying,LI Dan.Stability of Hetero-atom Titanium in Framework of Zeolite TiY[J].Journal of Molecular Catalysis (China),2009,23(1). |
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| Authors: | CHEN Ran SHEN Zhi-hong QI Xin QI Ying LI Dan |
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| Institution: | Key Laboratory of Catalysis of CNPC;University of Petroleum;Beijing 102249;China |
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| Abstract: | The hetero-atom zeolite TiY was synthesized by the process of hydrothermal synthesis.The state of hetero-atom Ti existing in the zeolite TiY and hydrothermal stability of zeolite TiY were characterized by means of XRD,XRF,UV-vis-DRS and XPS.The results showed that hetero-atom Ti introduced into the framework of zeolite does not affect the crystallographic form of zeolite Y;after hydro-thermal treatment,the Ti-content of zeolite TiY didn't decrease;the most of hetero-atom Ti was still in the framework of zeo... |
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| Keywords: | hetero-atom Ti zeolite TiY skeleton stability |
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