Synthesis and characterization of DNL-6, a new silicoaluminophosphate molecular sieve with the RHO framework

	Synthesis and characterization of DNL-6, a new silicoaluminophosphate molecular sieve with the RHO framework
	Su, Xiong 1,2,3; Tian, Peng 1,2; Li, Jinzhe 1,2; Zhang, Ying 1,2; Meng, Shuanghe 1,2; He, Yanli 1,2; Fan, Dong 1,2,3; Liu, Zhongmin 1,2
刊名	microporous and mesoporous materials
	2011-10-01
卷号	144 期号:1-3 页码:113-119
关键词	SAPO RHO Synthesis DNL-6 Crystallization mechanism
ISSN号	待补充
通讯作者	刘中民
产权排序	1,1
中文摘要	synthesis and characterization of dnl-6, a new silicoaluminophosphate molecular sieve with the rho framework
英文摘要	a new silicoaluminophosphate molecular sieve with the rho framework (designated as dnl-6, dalian national laboratory number 6) has been hydrothermally synthesized for the first time with diethylamine (dea) template in the presence of cetyltrimethylammonium bromide (ctab). influence factors, such as ctab amount and silica content in the starting gel, crystallization time and temperature, were investigated. it was observed that dea together with ctab were necessary for the formation of pure rho phase, which appeared in a narrow range of the starting gel compositions and synthesis conditions. only dea and water molecules were found in the as-synthesized dnl-6 without any existence of ctab. all si atoms incorporated into the framework with si(4al) environment at a high amount close to the theoretical maximum value. dnl-6 molecular sieve possessed high micropore surface area (777 m(2)/g) and large micropore volume (0.36 cm(3)/g) with good thermal and hydrothermal stability. crystallization course was studied by monitoring solid products at different crystallization times with xrd, sem, xrf, nmr and chn elemental analysis. it is proposed that dnl-6 crystals were more likely formed directly from the crystallization of liquid phase rather than from the transformation of amorphous materials, and si atoms directly incorporated into the dnl-6 framework from the very beginning of the crystallization via a sm2 mechanism. (c) 2011 elsevier inc. all rights reserved.
学科主题	物理化学
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]	crystalline inorganic solids ; zeolite rho ; nmr-spectroscopy ; state nmr ; aluminophosphate ; template ; sapo-34 ; cation
收录类别	SCI ; ISTP
语种	英语
WOS记录号	WOS:000293435400015
公开日期	2012-07-09
内容类型	期刊论文
源URL	[http://159.226.238.44/handle/321008/115840]
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, Dalian Natl Lab Clean Energy, Dalian, Peoples R China 2.Chinese Acad Sci, Dalian Inst Chem Phys, Natl Engn Lab Methanol Olefins, 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	Su, Xiong,Tian, Peng,Li, Jinzhe,et al. Synthesis and characterization of DNL-6, a new silicoaluminophosphate molecular sieve with the RHO framework[J]. microporous and mesoporous materials,2011,144(1-3):113-119.
APA	Su, Xiong.,Tian, Peng.,Li, Jinzhe.,Zhang, Ying.,Meng, Shuanghe.,...&Liu, Zhongmin.(2011).Synthesis and characterization of DNL-6, a new silicoaluminophosphate molecular sieve with the RHO framework.microporous and mesoporous materials,144(1-3),113-119.
MLA	Su, Xiong,et al."Synthesis and characterization of DNL-6, a new silicoaluminophosphate molecular sieve with the RHO framework".microporous and mesoporous materials 144.1-3(2011):113-119.