SAPO-34 templated by dipropylamine and diisopropylamine: synthesis and catalytic performance in the methanol to olefin (MTO) reaction

doi:10.1039/c5nj02351c

	SAPO-34 templated by dipropylamine and diisopropylamine: synthesis and catalytic performance in the methanol to olefin (MTO) reaction
	Tian, Peng 2; Xu, Shutao 2; Wang, Dehua 1,2; Yang, Yue 2; Li, Jinzhe 2; Wang, Quanyi 2; Yang, Miao 2; Liu, Zhongmin 2,3; Fan, Dong 1,2
刊名	NEW JOURNAL OF CHEMISTRY
	2016
卷号	40 期号:5 页码:4236-4244
ISSN号	1144-0546
DOI	10.1039/c5nj02351c
文献子类	Article
英文摘要	In this work, a comprehensive study of the hydrothermal synthesis and catalytic performance of SAPO-34 templated by the isomeric dipropylamine (DPA) and diisopropylamine (DIPA) was carried out. SAPO-34 with a faster crystallization rate and lower Si content could be obtained with DIPA as the template, suggesting the better templating efficacy of DIPA than DPA. Theoretical calculations reveal that DIPA possesses more favourable non-bonding interactions with the CHA framework and the electronic configuration is of vital importance in determining the template efficacy. SAPO-34-DIPA with low silicon contents exhibits excellent performance, over which a maximum selectivity of ethylene plus propylene (87.2%) is observed. This value should be among the top ever reported. The surface Si enrichment on the crystals, which is both template- and condition-dependent, is revealed to be of significant influence in the catalytic performance. The relatively homogenous Si distribution in the crystals, lower acid concentration and weaker acid strength corporately make SAPO-34-DIPA an excellent MTO catalyst.
WOS关键词	CRYSTALLINE INORGANIC SOLIDS ; STRUCTURE-DIRECTING AGENTS ; MOLECULAR-SIEVES ; MICROPOROUS MATERIALS ; PRODUCT SELECTIVITY ; SI DISTRIBUTION ; RATIONAL SYNTHESIS ; REACTION CENTERS ; CONVERSION ; FRAMEWORK
WOS研究方向	Chemistry
语种	英语
出版者	ROYAL SOC CHEMISTRY
WOS记录号	WOS:000375586400028
内容类型	期刊论文
源URL	[http://cas-ir.dicp.ac.cn/handle/321008/170898]
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
通讯作者	Tian, Peng; Liu, Zhongmin
作者单位	1.Chinese Acad Sci, Univ Chinese Acad Sci, Beijing 100049, Peoples R China 2.Chinese Acad Sci, Dalian Inst Chem Phys, Dalian Natl Lab Clean Energy, Natl Engn Lab Methanol Olefins, Dalian 116023, Peoples R China 3.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	Tian, Peng,Xu, Shutao,Wang, Dehua,et al. SAPO-34 templated by dipropylamine and diisopropylamine: synthesis and catalytic performance in the methanol to olefin (MTO) reaction[J]. NEW JOURNAL OF CHEMISTRY,2016,40(5):4236-4244.
APA	Tian, Peng.,Xu, Shutao.,Wang, Dehua.,Yang, Yue.,Li, Jinzhe.,...&Fan, Dong.(2016).SAPO-34 templated by dipropylamine and diisopropylamine: synthesis and catalytic performance in the methanol to olefin (MTO) reaction.NEW JOURNAL OF CHEMISTRY,40(5),4236-4244.
MLA	Tian, Peng,et al."SAPO-34 templated by dipropylamine and diisopropylamine: synthesis and catalytic performance in the methanol to olefin (MTO) reaction".NEW JOURNAL OF CHEMISTRY 40.5(2016):4236-4244.