Rapid synthesis and characterization of DD3R zeolite with (NH4)(2)SiF6 as silica source

doi:10.1016/j.micromeso.2016.01.009

	Rapid synthesis and characterization of DD3R zeolite with (NH4)(2)SiF6 as silica source
	Liu, Chen1,2,3 ; Bai, Lu 1,4; Zhang, Jianming 1; Hu, Deng 1; Li, Meng 1; Zeng, Gaofeng 1; Zhang, Yanfeng1,2 ; Wei, Wei 1; Sun, Yuhan1,2
	2016-05
发表期刊	MICROPOROUS AND MESOPOROUS MATERIALS (IF:4.8[JCR-2023],4.7[5-Year])
ISSN	1387-1811
卷号	225 页码:312-322
发表状态	已发表
DOI	10.1016/j.micromeso.2016.01.009
摘要	Rapid synthesis and characterization of all-silica Deca-Dodecasil 3 Rhombohedral (DD3R) zeolite were systematically studied with (NH4)(2)SiF6 as silica source. The effects of gel recipe, synthesis temperature and time, seeding, aging and silica source were investigated systematically. Big DD3R crystals (50-150 mu m) with various morphologies (hexagonal plate, polyhedron and rhombohedron) were obtained by tuning the synthesis temperature, time, seeding and aging. Compared with other silica sources, (NH4)(2)SiF6 is very reactive which enhances the nucleation and crystal growth of DD3R zeolite significantly. At 220 degrees C, highly crystalline DD3R was obtained in 12 h without seeding, which is the fastest synthesis up to now. Aging and seeding reduced the synthesis time substantially and led to smaller crystals. With the help of seeding and aging, pure DD3R crystals were obtained in 6 d at 100 degrees C, which opens the door to synthesis at low temperature and ambient pressure. Mixed silica sources can reduce the consumption of expensive (NH4)(2)SiF6 . Higher calcination temperature is required for the complete template removal of the big DD3R crystals obtained in this study, which hinders the diffusion of oxidation products from the template. Zeolites SGT and DOH are competing phases in the synthesis of DD3R. The introduction of Al into the mother liquor led to the formation of zeolite SGT. (C) 2016 Elsevier Inc. All rights reserved.
关键词	DD3R Zeolite (NH4)(2)SiF6 Rapid synthesis Silica source
收录类别	SCI ; EI
语种	英语
资助项目	SARI[Y426473231]
WOS研究方向	Chemistry ; Science & Technology - Other Topics ; Materials Science
WOS类目	Chemistry, Applied ; Chemistry, Physical ; Nanoscience & Nanotechnology ; Materials Science, Multidisciplinary
WOS记录号	WOS:000373421700036
出版者	ELSEVIER SCIENCE BV
EI入藏号	20160701928268
EI主题词	Temperature ; Zeolites
EI分类号	Thermodynamics:641.1 ; Inorganic Compounds:804.2
WOS关键词	DDR-TYPE ZEOLITE ; 8-RING CLATHRASIL DD3R ; SOLVENT-FREE SYNTHESIS ; ALL-SILICA ; HYDROTHERMAL SYNTHESIS ; SEPARATION CHARACTERISTICS ; SMALL HYDROCARBONS ; GAS SEPARATION ; MEMBRANES ; PERFORMANCE
原始文献类型	Article
引用统计	正在获取...
文献类型	期刊论文
条目标识符	https://kms.shanghaitech.edu.cn/handle/2MSLDSTB/1855
专题	物质科学与技术学院物质科学与技术学院_特聘教授组_孙予罕组物质科学与技术学院_特聘教授组_张延风组物质科学与技术学院_硕士生
通讯作者	Zeng, Gaofeng; Zhang, Yanfeng
作者单位	1.Chinese Acad Sci, Shanghai Adv Res Inst, CAS Key Lab Low Carbon Convers Sci & Engn, Shanghai 201210, Peoples R China 2.ShanghaiTech Univ, Sch Phys Sci & Technol, Shanghai 201210, Peoples R China 3.Univ Chinese Acad Sci, Beijing 10049, Peoples R China 4.Shanghai Univ, Sch Mat Sci, 99 Shangda Rd, Shanghai 200444, Peoples R China
第一作者单位	物质科学与技术学院
通讯作者单位	物质科学与技术学院
推荐引用方式 GB/T 7714	Liu, Chen,Bai, Lu,Zhang, Jianming,et al. Rapid synthesis and characterization of DD3R zeolite with (NH4)(2)SiF6 as silica source[J]. MICROPOROUS AND MESOPOROUS MATERIALS,2016,225:312-322.
APA	Liu, Chen.,Bai, Lu.,Zhang, Jianming.,Hu, Deng.,Li, Meng.,...&Sun, Yuhan.(2016).Rapid synthesis and characterization of DD3R zeolite with (NH4)(2)SiF6 as silica source.MICROPOROUS AND MESOPOROUS MATERIALS,225,312-322.
MLA	Liu, Chen,et al."Rapid synthesis and characterization of DD3R zeolite with (NH4)(2)SiF6 as silica source".MICROPOROUS AND MESOPOROUS MATERIALS 225(2016):312-322.