N-methyldiethanolamine: A multifunctional structure-directing agent for the synthesis of SAPO and AlPO molecular sieves | |
Wang, Dehua1,2,3; Tian, Peng1,2; Fan, Dong1,2,3; Yang, Miao1,2; Gao, Beibei1,2,3; Qiao, Yuyan1,2,3; Wang, Chan1,2,3; Liu, Zhongmin1,2 | |
刊名 | journal of colloid and interface science
![]() |
2015-05-01 | |
卷号 | 445页码:119-126 |
关键词 | Alkanolamine SAPO Synthesis Structure-directing agent MTO reaction |
英文摘要 | in the present study, n-methyldiethanolamine (mdea) is demonstrated to be a multifunctional structure-directing agent for the synthesis of aluminophosphate-based molecular sieves. four types of molecular sieves, including sapo-34, -35, alpo-9 and -22, are for the first time acquired with mdea as a novel template. the phase selectivity of the present synthesis is found to be condition-dependent. sapo-34 (cha) crystallizes from a conventional hydrothermal system with a higher mdea concentration. when using mdea as both the template and solvent, pure sapo-35 (lev) is obtained from the synthetic gel with a high p2o5/al2o3 ratio of (2-3), in which the concentration of mdea could be varied in a wide range. alpo-9 and alpo-22 (aww) are synthesized under the similar conditions to sapo-35, except without the addition of si source. the physicochemical properties of the obtained samples are investigated by xrd, xrf, sem, n-2 physisorption. tg-dsc, and various nmr spectra (c-13, si-29, al-22 and p-31). both sapo-34 and sapo-35 show good thermal stability, large surface area, and high pore volume. the catalytic performance of sapo-34 is evaluated by the methanol-to-olefins (mto) reaction and a good (c2h4 + c3h6) selectivity of 82.7% has been achieved. (c) 2014 elsevier inc. all rights reserved. |
WOS标题词 | science & technology ; physical sciences |
类目[WOS] | chemistry, physical |
研究领域[WOS] | chemistry |
关键词[WOS] | open-framework aluminophosphates ; crystalline inorganic solids ; si distribution ; methanol conversion ; templating agent ; catalysts ; alkanolamines ; diethylamine ; environment ; piperazine |
收录类别 | SCI |
语种 | 英语 |
WOS记录号 | WOS:000350006700015 |
公开日期 | 2016-05-09 |
内容类型 | 期刊论文 |
源URL | [http://cas-ir.dicp.ac.cn/handle/321008/146033] ![]() |
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, Natl Engn Lab Methanol Olefins, Dalian 116023, Peoples R China 2.Chinese Acad Sci, Dalian Inst Chem Phys, Dalian Natl Lab Clean Energy, Dalian 116023, Peoples R China 3.Chinese Acad Sci, Grad Univ, Beijing 100049, Peoples R China |
推荐引用方式 GB/T 7714 | Wang, Dehua,Tian, Peng,Fan, Dong,et al. N-methyldiethanolamine: A multifunctional structure-directing agent for the synthesis of SAPO and AlPO molecular sieves[J]. journal of colloid and interface science,2015,445:119-126. |
APA | Wang, Dehua.,Tian, Peng.,Fan, Dong.,Yang, Miao.,Gao, Beibei.,...&Liu, Zhongmin.(2015).N-methyldiethanolamine: A multifunctional structure-directing agent for the synthesis of SAPO and AlPO molecular sieves.journal of colloid and interface science,445,119-126. |
MLA | Wang, Dehua,et al."N-methyldiethanolamine: A multifunctional structure-directing agent for the synthesis of SAPO and AlPO molecular sieves".journal of colloid and interface science 445(2015):119-126. |
个性服务 |
查看访问统计 |
相关权益政策 |
暂无数据 |
收藏/分享 |
除非特别说明,本系统中所有内容都受版权保护,并保留所有权利。
修改评论