Insights of the Crystallization Process of Molecular Sieve AlPO4-5 Prepared by Solvent-Free Synthesis

doi:10.1021/jacs.6b01200

	Insights of the Crystallization Process of Molecular Sieve AlPO4-5 Prepared by Solvent-Free Synthesis
	Sheng, Na 1,2; Chu, Yueying 3; Xing, Shaohui 3; Wang, Qiang 3; Yi, Xianfeng 3; Feng, Zhaochi 4; Meng, Xiangju 1,2; Liu, Xiaolong 3; Deng, Feng 3; Xiao, Feng-Shou 1,2,5
刊名	JOURNAL OF THE AMERICAN CHEMICAL SOCIETY
	2016-05-18
卷号	138 期号:19 页码:6171-6176
ISSN号	0002-7863
DOI	10.1021/jacs.6b01200
文献子类	Article
英文摘要	Crystallization of AlPO4-5 with AFI structure under solvent-free conditions has been investigated. Attention was mainly focused on the characterization of the intermediate phases formed at the early stages during the crystallization. The development in the long-range ordering of the solid phases as a function of crystallization time was monitored by XRD, SEM, IR, UV-Raman, and MAS NMR techniques. Particularly, the UV-Raman spectroscopy was employed to obtain the information on the formation process of the framework. J-HMQC Al-27/P-31 double-resonance NMR experiments were used to identify the P-O-Al bonded species in the intermediate phases. For the first time the P-O-Al bonded species in the intermediate phases can be correctly described through using this advanced NMR technique. The crystallization under solvent free conditions appears to follow the pathway: The initial amorphous raw material is converted to an intermediate phase which has four-/six-membered ring species, then gradually transformed into crystalline AlPO4-S. This observation is not consistent with the common idea that the intermediate phase is the semicrystalline intermediates with a three-dimensional structure.
WOS关键词	DRY-GEL CONVERSION ; SOLID-STATE NMR ; ZEOLITE NUCLEATION ; CHEMICAL-SHIFT ; RAMAN-SPECTRA ; UV-RAMAN ; CRYSTALS ; ALUMINOPHOSPHATES ; MECHANISM ; GROWTH
WOS研究方向	Chemistry
语种	英语
出版者	AMER CHEMICAL SOC
WOS记录号	WOS:000376331000018
内容类型	期刊论文
源URL	[http://cas-ir.dicp.ac.cn/handle/321008/170966]
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	Meng, Xiangju; Liu, Xiaolong; Xiao, Feng-Shou
作者单位	1.Zhejiang Univ, Key Lab Appl Chem Zhejiang Prov, Hangzhou 310028, Zhejiang, Peoples R China 2.Zhejiang Univ, Dept Chem, Hangzhou 310028, Zhejiang, Peoples R China 3.Chinese Acad Sci, Wuhan Inst Phys & Math, State Key Lab Magnet Resonance & Atom & Mol Phys, Wuhan 430071, Peoples R China 4.Chinese Acad Sci, Dalian Inst Chem Phys, State Key Lab Catalysis, Dalian 116023, Peoples R China 5.Zhejiang Univ, Key Lab Biomass Chem Engn, Minist Educ, Hangzhou 310027, Zhejiang, Peoples R China
推荐引用方式 GB/T 7714	Sheng, Na,Chu, Yueying,Xing, Shaohui,et al. Insights of the Crystallization Process of Molecular Sieve AlPO4-5 Prepared by Solvent-Free Synthesis[J]. JOURNAL OF THE AMERICAN CHEMICAL SOCIETY,2016,138(19):6171-6176.
APA	Sheng, Na.,Chu, Yueying.,Xing, Shaohui.,Wang, Qiang.,Yi, Xianfeng.,...&Xiao, Feng-Shou.(2016).Insights of the Crystallization Process of Molecular Sieve AlPO4-5 Prepared by Solvent-Free Synthesis.JOURNAL OF THE AMERICAN CHEMICAL SOCIETY,138(19),6171-6176.
MLA	Sheng, Na,et al."Insights of the Crystallization Process of Molecular Sieve AlPO4-5 Prepared by Solvent-Free Synthesis".JOURNAL OF THE AMERICAN CHEMICAL SOCIETY 138.19(2016):6171-6176.