Defects in AHFS-dealuminated Y zeolite: A crucial factor for mesopores formation in the following base treatment procedure
文献类型：期刊论文
| 作者 | Li, Cheng2; Guo, Linlin2; Liu, Peng2; Gong, Ke1; Jin, Wenlong2; Li, Lei2; Zhu, Xiaochun2; Liu, Xianchun1; Shen, Baojian2 |
| 刊名 | MICROPOROUS AND MESOPOROUS MATERIALS
 |
| 出版日期 | 2017-10-29 |
| 卷号 | 255页码:242-252 |
| 关键词 | Mesoporous Y zeolite AHFS treatment Base treatment Defects Catalytic cracking |
| 英文摘要 | Mesoporous zeolites have gained a great interest because of their improved performance in catalyzed reactions compared with conventional microporous zeolites. Herein, we would like to report a strategy containing sequential ammonium hexafluorosilicate (AHFS) and base treatment to prepare mesoporous Y zeolite. The obtained mesoporous Y zeolite possessed high total pore volume (0.720 cm(3) g(-1)) and mesopore volume (0.453 cm(3) g(-1)). Furthermore, the goal of well interconnectivity among different pores has also been achieved. It has been found that AHFS treatment played a crucial role in the formation of mesopores during the following base treatment procedure. Si-rich areas, which were full of defects, formed after AHFS treatment. These areas were unstable and easy to remove from the zeolite framework in base solution to generate mesopores. Meanwhile, the defects provided paths for base treatment and made it more effective. The combined treatment achieved a goal of inducing mesopores formation by defects. Catalytic performance of the zeolites were evaluated by cracking of 1,3,5-triisopropylbenzene (TIPB). The result showed that catalytic activity was closely related to the upgraded mesoporosity system of the zeolites. (C) 2017 Elsevier Inc. All rights reserved. |
| WOS标题词 | Science & Technology ; Physical Sciences ; Technology |
| 类目[WOS] | Chemistry, Applied ; Chemistry, Physical ; Nanoscience & Nanotechnology ; Materials Science, Multidisciplinary |
| 研究领域[WOS] | Chemistry ; Science & Technology - Other Topics ; Materials Science |
| 关键词[WOS] | EXTRA-FRAMEWORK ALUMINUM ; CATALYTIC CRACKING ; AMMONIUM HEXAFLUOROSILICATE ; HIGH-PERFORMANCE ; USY ZEOLITES ; MFI ZEOLITES ; DESILICATION ; STRATEGIES ; REACTIVITY ; MORDENITE |
| 收录类别 | SCI |
| 语种 | 英语 |
| WOS记录号 | WOS:000414819400028 |
| 源URL | [http://cas-ir.dicp.ac.cn/handle/321008/149687]  |
| 专题 | 大连化学物理研究所_中国科学院大连化学物理研究所 |
| 作者单位 | 1.Chinese Acad Sci, Dalian Inst Chem Phys, State Key Lab Catalysis, Dalian 116023, Peoples R China 2.China Univ Petr, Coll Chem Engn, Key Lab Catalysis CNPC, State Key Lab Heavy Oil Proc, Beijing 102249, Peoples R China |
| 推荐引用方式 GB/T 7714 | Li, Cheng,Guo, Linlin,Liu, Peng,et al. Defects in AHFS-dealuminated Y zeolite: A crucial factor for mesopores formation in the following base treatment procedure[J]. MICROPOROUS AND MESOPOROUS MATERIALS,2017,255:242-252. |
| APA | Li, Cheng.,Guo, Linlin.,Liu, Peng.,Gong, Ke.,Jin, Wenlong.,...&Shen, Baojian.(2017).Defects in AHFS-dealuminated Y zeolite: A crucial factor for mesopores formation in the following base treatment procedure.MICROPOROUS AND MESOPOROUS MATERIALS,255,242-252. |
| MLA | Li, Cheng,et al."Defects in AHFS-dealuminated Y zeolite: A crucial factor for mesopores formation in the following base treatment procedure".MICROPOROUS AND MESOPOROUS MATERIALS 255(2017):242-252. |
入库方式： OAI收割
来源：大连化学物理研究所
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