| 在无有机导向剂条件下采用乙醇为助剂合成高硅沸石 |
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| 引用本文： | 栾慧敏,雷驰,马野,吴勤明,朱龙凤,徐好,韩世超,朱秋艳,刘小龙,孟祥举,肖丰收. 在无有机导向剂条件下采用乙醇为助剂合成高硅沸石[J]. 催化学报, 2021, 42(4): 563-570,中插5-中插12. DOI: 10.1016/S1872-2067(20)63677-4 |
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| 作者姓名： | 栾慧敏 雷驰 马野 吴勤明 朱龙凤 徐好 韩世超 朱秋艳 刘小龙 孟祥举 肖丰收 |
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| 作者单位： | 浙江大学化学系, 浙江省应用化学重点实验室, 浙江杭州310028;嘉兴学院生物与化学工程学院, 浙江嘉兴314001;中山大学材料学院, 广东广州510006 |
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| 基金项目： | 国家重点研究发展计划;国家自然科学基金;and the National Natural Science Foundation of China ;This work was supported by the National Key Research and Development Program of China |
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| 摘 要： | 高硅沸石具有优异的热稳定性、水热稳定性、大的微孔体积、高表面积和均匀的微孔孔道,因而广泛应用于催化领域.然而,高硅沸石的合成往往需要使用有机结构导向剂,不但增加了沸石合成成本,而且还产生了大量的三废排放.为了解决这个问题,我们发展了在无有机导向剂存在条件下采用沸石晶种诱导合成沸石的方法,但是该方法合成的沸石产物骨架富铝...
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| 关 键 词： | 沸石 高硅 晶种导向 醇填充 催化性能 |
Alcohol-assisted synthesis of high-silica zeolites in the absence of organic structure-directing agents |
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| Huimin Luan,Chi Lei,Ye Ma,Qinming Wu,Longfeng Zhu,Hao Xu,Shichao Han,Qiuyan Zhu,Xiaolong Liu,Xiangju Meng,Feng-Shou Xiao. Alcohol-assisted synthesis of high-silica zeolites in the absence of organic structure-directing agents[J]. Chinese Journal of Catalysis, 2021, 42(4): 563-570,中插5-中插12. DOI: 10.1016/S1872-2067(20)63677-4 |
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| Authors: | Huimin Luan Chi Lei Ye Ma Qinming Wu Longfeng Zhu Hao Xu Shichao Han Qiuyan Zhu Xiaolong Liu Xiangju Meng Feng-Shou Xiao |
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| Affiliation: | (Key Laboratory of Applied Chemistry of Zhejiang Province,Department of Chemistry,Zhejiang University,Hangzhou 310028,Zhejiang,China;College of Biological,Chemical Science and Engineering,Jiaxing University,Jiaxing 314001,Zhejiang,China;School of Material,Sun Yat-Sen University,Guangzhou 510006,Guangdong,China) |
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| Abstract: | In this work, we show for the first time that high-silica zeolites (MFI, TON, MTT, and *MRE) could be synthesized from a combined strategy of both zeolite seeding and alcohol filling in the absence of organic structure-directing agents (OSDAs). High-silica ZSM-5 zeolites with Si/Al ratios ranging from 38 to 240 (TF-Al-ZSM-5) could be synthesized via this route. The key to the success of this technique was the employment of an aluminosilicate precursor with a fully 4-coordinated alumi-num species as the initial source, wherein the rearrangement and condensation of the silicate spe-cies, rather than the aluminate species, occurred during zeolite crystallization. In addition, heteroa-toms, such as Fe and B, could be incorporated into the zeolite frameworks. Catalytic tests for the methanol-to-propylene (MTP) reaction exhibited good catalytic performance for TF-Al-ZSM-5, which was comparable to that of the aluminosilicate ZSM-5 zeolite synthesized with OSDAs. Hence, this method offers viable opportunities for the industrial production and catalytic application of high-silica zeolites in the future. |
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| Keywords: | Zeolite High silica Seed directing Alcohol filling Catalytic performance |
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