A new method to construct hierarchical ZSM-5 zeolites with excellent catalytic activity
文献类型：期刊论文
| 作者 | Yuan EH(袁恩辉)1,2,3; Tang ZC(唐志诚)1,2 ; Mo ZL(莫尊理)3; Lu GX(吕功煊)1,2; Tang ZC(唐志诚)
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| 刊名 | Journal of porous materials
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| 出版日期 | 2014 |
| 卷号 | 21期号:6页码:957-965 |
| 关键词 | Desilicication ZSM-5 Mesopores Formation mechanism Catalytic cracking |
| ISSN号 | 1380-2224 |
| 通讯作者 | 唐志诚 ; 莫尊理 |
| 英文摘要 | Desilicication and dealuminzation with weak alkaline solution and acid liquor is an effective way to construct hierarchically mesoporous without damaging its crystallinity and preserving its acidity in ZSM-5 zeolites. We investigated the influence of the concentration of NaAlO2, treatment time, temperature and the concentration of HCl on the crystallinity of ZSM-5 and characterized the products with XRD, SEM, XRF, BET, NH3-TPD, etc. The results showed that the appropriate concentration of NaAlO2 solutions extract selectively silicon from the framework of the zeolites while a small portion of aluminum would patch some parts of vacancies produced by the removal of silicon, then the HCl would dealuminize to maintain the SiO2/Al2O3 ratios, which preserved the crystallinity of ZSM-5 perfectly. Furthermore, the micro-reaction activity tests displayed that the obtained products had higher catalytic than the parent zeolites because of their optimized hierarchical micro-mesoporous. |
| 学科主题 | 物理化学与绿色催化 |
| 收录类别 | SCI |
| 资助信息 | PetroChina Innovation Foundation (2013-D-5006-0401);The National Natural Science Foundation of China (21407154);The National Natural Science Foundation of China (21407154);The National Basic Research Program of China (2013CB933201); West Light Foundation of The Chinese Academy of Sciences;Science and Technology Program of Gansu Province (1204GKCA063);Science and Technology Program of Lanzhou City (2012-2-103);Engineering Laboratory of Gansu Development and Reform Commission;Opening Project of State Key Laboratory for Oxo Synthesis and Selective Oxidation |
| 语种 | 英语 |
| WOS记录号 | WOS:000345080700008 |
| 公开日期 | 2014-12-01 |
| 源URL | [http://210.77.64.217/handle/362003/6822]  |
| 专题 | 兰州化学物理研究所_ERC国家工程研究中心 兰州化学物理研究所_OSSO国家重点实验室 |
| 通讯作者 | Tang ZC(唐志诚) |
| 作者单位 | 1.Chinese Acad Sci, Lanzhou Inst Chem Phys, State Key Lab Oxo Synth & Select Oxidat, Lanzhou 730070, Peoples R China 2.Chinese Acad Sci, Lanzhou Inst Chem Phys, Natl Engn Res Ctr Fine Petrochem Intermediates, Lanzhou 730070, Peoples R China 3.Northwest Normal Univ, Coll Chem & Chem Engn, Key Lab Polymer Mat Gansu Prov, Lanzhou 730070, Peoples R China |
| 推荐引用方式 GB/T 7714 | Yuan EH,Tang ZC,Mo ZL,et al. A new method to construct hierarchical ZSM-5 zeolites with excellent catalytic activity[J]. Journal of porous materials,2014,21(6):957-965. |
| APA | Yuan EH,Tang ZC,Mo ZL,Lu GX,&唐志诚.(2014).A new method to construct hierarchical ZSM-5 zeolites with excellent catalytic activity.Journal of porous materials,21(6),957-965. |
| MLA | Yuan EH,et al."A new method to construct hierarchical ZSM-5 zeolites with excellent catalytic activity".Journal of porous materials 21.6(2014):957-965. |
入库方式： OAI收割
来源：兰州化学物理研究所
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