Understanding of the dissolution-crystallization fabrication strategy towards macro/microporous zsm-5 single crystals
文献类型：期刊论文
| 作者 | Zhang, Yanfei1,2,3,4; Zhang, Xiaomin3; Zhang, Jie3,4; Li, Peidong1,2,3,4; Han, Qiao1,2,3,4; Xu, Lei3; Guo, Hongchen1,2 |
| 刊名 | Crystengcomm
 |
| 出版日期 | 2018-11-14 |
| 卷号 | 20期号:42页码:6786-6794 |
| ISSN号 | 1466-8033 |
| DOI | 10.1039/c8ce01201f |
| 通讯作者 | Xu, lei(leixu@dicp.ac.cn) ; Guo, hongchen(hongchenguo@dlut.edu.cn) |
| 英文摘要 | In this study, detailed investigations about a novel dissolution-crystallization synthetic route for the fabrication of hierarchically macro/microporous zsm-5 single crystals were conducted. during the fabrication, pre-prepared mesoporous aluminosilicate spheres (mass) acted not only as raw materials but also as quasi scaffold templates simultaneously to construct additional macropores. factors like the amount of alkali sodium hydroxide (naoh), crystallization temperature and si/al ratios of mass could affect the successful fabrication of such hierarchical zeolites via varying either the dissolution behaviors of precursors or the crystallization of zeolite crystals. generally, only with suitable amounts of alkali naoh that matched the si/al ratios of precursors and at appropriate crystallization temperature could the balance between the dissolution and crystallization of mass precursors be achieved and thus the intracrystalline macropores be constructed. owing to the introduction of rich intracrystalline macropores, the diffusional properties of the hierarchical zsm-5 crystals were significantly enhanced, which has also been well proved through the toluene adsorption experiment with an intelligent gravimetric analyzer. thus, with a similar zn-modification, all the three hierarchical samples with different si/al ratios exhibited a much longer lifetime and higher aromatics selectivity in the mta reactions than the conventional microporous sample. |
| WOS关键词 | MESOPOROGEN-FREE SYNTHESIS ; HYDROTHERMAL SYNTHESIS ; CATALYTIC PERFORMANCE ; ZEOLITE CATALYSTS ; DILUTE ETHYLENE ; METHANOL ; CONVERSION ; SILICA ; AROMATIZATION ; MECHANISM |
| WOS研究方向 | Chemistry ; Crystallography |
| WOS类目 | Chemistry, Multidisciplinary ; Crystallography |
| 语种 | 英语 |
| WOS记录号 | WOS:000448565300012 |
| 出版者 | ROYAL SOC CHEMISTRY |
| URI标识 | http://www.irgrid.ac.cn/handle/1471x/2373138 |
| 专题 | 大连化学物理研究所 |
| 通讯作者 | Xu, Lei; Guo, Hongchen |
| 作者单位 | 1.Dalian Univ Technol, State Key Lab Fine Chem, Dalian 116023, Peoples R China 2.Dalian Univ Technol, Sch Chem Engn, Dalian 116023, Peoples R China 3.Chinese Acad Sci, Dalian Inst Chem Phys, Natl Lab Clean Energy, Dalian 116023, Peoples R China 4.Univ Chinese Acad Sci, Beijing 100049, Peoples R China |
| 推荐引用方式 GB/T 7714 | Zhang, Yanfei,Zhang, Xiaomin,Zhang, Jie,et al. Understanding of the dissolution-crystallization fabrication strategy towards macro/microporous zsm-5 single crystals[J]. Crystengcomm,2018,20(42):6786-6794. |
| APA | Zhang, Yanfei.,Zhang, Xiaomin.,Zhang, Jie.,Li, Peidong.,Han, Qiao.,...&Guo, Hongchen.(2018).Understanding of the dissolution-crystallization fabrication strategy towards macro/microporous zsm-5 single crystals.Crystengcomm,20(42),6786-6794. |
| MLA | Zhang, Yanfei,et al."Understanding of the dissolution-crystallization fabrication strategy towards macro/microporous zsm-5 single crystals".Crystengcomm 20.42(2018):6786-6794. |
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来源：大连化学物理研究所
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