N-methyldiethanolamine: A multifunctional structure-directing agent for the synthesis of SAPO and AlPO molecular sieves

	N-methyldiethanolamine: A multifunctional structure-directing agent for the synthesis of SAPO and AlPO molecular sieves
	Wang, Dehua 1,2,3; Tian, Peng 1,2; Fan, Dong 1,2,3; Yang, Miao 1,2; Gao, Beibei 1,2,3; Qiao, Yuyan 1,2,3; Wang, Chan 1,2,3; Liu, Zhongmin 1,2
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.