The stability of nanosized HZSM-5 zeolite: a high-resolution solid-state NMR study
文献类型：期刊论文
| 作者 | Zhang, WP; Han, XW; Liu, XM; Bao, XH |
| 刊名 | microporous and mesoporous materials
 |
| 出版日期 | 2001-12-15 |
| 卷号 | 50期号:1页码:13-23 |
| 关键词 | nanostructured material nanosized HZSM-5 zeolite solid-state NMR thermal stability hydrothermal stability |
| 英文摘要 | the thermal and hydrothermal stabilities of hzsm-5 zeolites with crystal sizes less than 100 nm have been studied by multinuclear solid-state nmr, combined with bet and xrd. as evidenced by al-27 and si-29 mas as well as their corresponding cross-polarization/mas nmr investigations, the thermal stability of nanosized hzsm-5 is not so good as that of microsized hzsm-5. this is due to two processes concerning dealumination and desilicification involved in the calcination of nanosized hzsm-5, while only the dealumination process is conducted in microsized hzsm-5 under the similar calcination process. the hydrothermal stability of nanosized hzsm-5 is, contrary to what was expected, not so bad as that of the microsized hzsm-5 in the course of steam treatment. the actual resistance of the hydrothermal stability to the crystal size of hzsm-5 can be ascribed to an active reconstruction of zeolitic framework through an effective filling of amorphous si species into nanosized hzsm-5 during hydrothermal treatment. (c) 2001 published by elsevier science b.v. |
| 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] | catalytic properties ; crystal size ; aluminum ; zsm-5 ; dealumination |
| 收录类别 | SCI |
| 原文出处 | true |
| 语种 | 英语 |
| WOS记录号 | WOS:000172607400002 |
| 公开日期 | 2010-11-30 |
| 源URL | [http://159.226.238.44/handle/321008/91859]  |
| 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 | Chinese Acad Sci, Dalian Inst Chem Phys, State Key Lab Catalysis, Dalian 116023, Peoples R China |
| 推荐引用方式 GB/T 7714 | Zhang, WP,Han, XW,Liu, XM,et al. The stability of nanosized HZSM-5 zeolite: a high-resolution solid-state NMR study[J]. microporous and mesoporous materials,2001,50(1):13-23. |
| APA | Zhang, WP,Han, XW,Liu, XM,&Bao, XH.(2001).The stability of nanosized HZSM-5 zeolite: a high-resolution solid-state NMR study.microporous and mesoporous materials,50(1),13-23. |
| MLA | Zhang, WP,et al."The stability of nanosized HZSM-5 zeolite: a high-resolution solid-state NMR study".microporous and mesoporous materials 50.1(2001):13-23. |
入库方式： OAI收割
来源：大连化学物理研究所
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