| 以四乙基氢氧化铵为模板并通过转晶法合成高硅铝比的SSZ?13沸石分子筛 |
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| 引用本文： | 刘效艳,王开学.以四乙基氢氧化铵为模板并通过转晶法合成高硅铝比的SSZ?13沸石分子筛[J].无机化学学报,2021,37(4):728-734. |
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| 作者姓名： | 刘效艳 王开学 |
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| 作者单位： | 上海健康医学院, 上海市分子影像学重点实验室, 上海 201318;上海交通大学化学化工学院, 上海电化学能源器件工程技术研究中心, 上海 200240 |
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| 基金项目： | 上海健康医学院种子基金项目（No.E3-0200-20-201007-30）资助。 |
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| 摘 要： | 使用四乙基氢氧化铵为有机模板剂,以低硅铝比(nSiO2/nAl2O3)的Y分子筛为铝源,通过转晶法制备结晶度良好的SSZ?13沸石分子筛。从凝胶配比方面考察了不同原料组成对分子筛合成的影响,并通过X射线衍射(XRD)、扫描电子显微镜(SEM)及电感耦合等离子体(ICP)表征水热反应过程中的物相、形貌、硅铝比等变化,揭示分子筛合成过程。氨选择性催化还原(NH3?SCR)反应显示该分子筛具有优异的催化活性,为其工业上的广泛应用提供了可能性。
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| 关 键 词： | SSZ?13沸石 四乙基氢氧化铵 Y分子筛 NH3?SCR |
| 收稿时间： | 2020/12/13 0:00:00 |
| 修稿时间： | 2021/1/7 0:00:00 |
Synthesis of SSZ-13 Zeolite with High Molar Ratio of SiO2 to Al2O3 by Crystal Transformation Method Using Tetraethyl Ammonium Hydroxide as Template |
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| LIU Xiao-Yan,WANG Kai-Xue.Synthesis of SSZ-13 Zeolite with High Molar Ratio of SiO2 to Al2O3 by Crystal Transformation Method Using Tetraethyl Ammonium Hydroxide as Template[J].Chinese Journal of Inorganic Chemistry,2021,37(4):728-734. |
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| Authors: | LIU Xiao-Yan WANG Kai-Xue |
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| Institution: | Shanghai Key Laboratory of Molecular Imaging, Shanghai University of Medicine and Health Sciences, Shanghai 201318, China; Shanghai Electrochemical Energy Devices Research Center, School of Chemistry and Chemical Engineering, Shanghai Jiao Tong University, Shanghai 200240, China |
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| Abstract: | SSZ-13 zeolite with good crystallinity was prepared by using tetraethyl ammonium hydroxide as organic template and Y zeolite with low molar ratio of SiO2 to Al2O3 (nSiO2/nAl2O3) as aluminum source. The effect of different compositions of pre-gels on the synthesis of SSZ-13 was investigated, and the crystallinity, morphology and nSiO2/nAl2O3in the process of hydrothermal reaction were characterized by X-ray diffraction (XRD), scanning electron microscopy (SEM) and inductively coupled plasm (ICP) to reveal the synthesis mechanism of SSZ-13. NH3 selective catalytic reduction (NH3-SCR) of NOx shows that the SSZ-13 catalysts with Cu loading (mass fraction of 3%) had excellent catalytic activity, which provides the possibility for its wide application in industry. |
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| Keywords: | SSZ-13 zeolite tetraethyl ammonium hydroxide Y zeolite NH3-SCR |
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