Preparation of hierarchical mordenite zeolites by sequential steaming-acid leaching-alkaline treatment
文献类型：期刊论文
| 作者 | Huang, Shengjun1; Liu, Xiaohan1,2; Yu, Lili1,2; Miao, Shu1; Liu, Zhenni1; Zhang, Shuang1; Xie, Sujuan1; Xu, Longya1 |
| 刊名 | microporous and mesoporous materials
 |
| 出版日期 | 2014-06-01 |
| 卷号 | 191期号:1页码:18-26 |
| 关键词 | Aluminum-rich mordenite Hierarchical zeolite Sequential treatment Steaming temperature |
| 通讯作者 | 黄声骏 ; 徐龙伢 |
| 英文摘要 | a three-step method consisting of steaming-acid leaching-alkaline treatment is used to introduce mesoporosity in a commercially available al-rich mordenite zeolite (si/al = 4.8). it has been found that the three-step sequential treatment results in the intra-crystalline mesoporosity with a pore size distribution centered at around 20 nm. single step or binary combination among steaming, acid leaching (treated in 3.0 m hno3 solution at 80 degrees c for 1 h) and alkaline treatment (treated in 0.1 m naoh aqueous solution at 85 degrees c for 2 h) hardly induces the mesoporosity with a controlled mesopore size distribution. among the involved three steps, the impact of steaming temperature on the mesoporosity development is studied. the elevation of steaming temperature in the range of 300-600 degrees c improves the susceptibility to the successive alkaline treatment and thus enhances the mesoporosity formation. moreover, transitions of si-29 nmr spectra demonstrate an extraction-realumination of framework al species with si(2al) configuration during the synthesis of hierarchical mordenite zeolite. (c) 2014 elsevier inc. all rights reserved. |
| WOS标题词 | science & technology ; physical sciences ; technology |
| 学科主题 | 物理化学 |
| 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] | mfi zeolites ; mesoporosity development ; desilication ; catalysts ; aluminum ; dealumination ; crystals ; zsm-5 ; accessibility ; generation |
| 收录类别 | SCI |
| 语种 | 英语 |
| WOS记录号 | WOS:000335627000003 |
| 公开日期 | 2016-05-09 |
| 源URL | [http://cas-ir.dicp.ac.cn/handle/321008/144398]  |
| 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.Chinese Acad Sci, Grad Univ, Beijing 100049, Peoples R China |
| 推荐引用方式 GB/T 7714 | Huang, Shengjun,Liu, Xiaohan,Yu, Lili,et al. Preparation of hierarchical mordenite zeolites by sequential steaming-acid leaching-alkaline treatment[J]. microporous and mesoporous materials,2014,191(1):18-26. |
| APA | Huang, Shengjun.,Liu, Xiaohan.,Yu, Lili.,Miao, Shu.,Liu, Zhenni.,...&Xu, Longya.(2014).Preparation of hierarchical mordenite zeolites by sequential steaming-acid leaching-alkaline treatment.microporous and mesoporous materials,191(1),18-26. |
| MLA | Huang, Shengjun,et al."Preparation of hierarchical mordenite zeolites by sequential steaming-acid leaching-alkaline treatment".microporous and mesoporous materials 191.1(2014):18-26. |
入库方式： OAI收割
来源：大连化学物理研究所
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