Microporous Aluminophosphate ULM-6: Synthesis, NMR Assignment, and Its Transformation to AlPO4-14 Molecular Sieve

doi:10.1021/acs.jpcc.6b00300

	Microporous Aluminophosphate ULM-6: Synthesis, NMR Assignment, and Its Transformation to AlPO4-14 Molecular Sieve
	Wang, Dehua 1,2; Xu, Shutao 2; Yang, Miao 2; Chu, Yueying 3; Tian, Peng 2; Liu, Zhongmin 2
刊名	JOURNAL OF PHYSICAL CHEMISTRY C
	2016-06-09
卷号	120 期号:22 页码:11854-11863
ISSN号	1932-7447
DOI	10.1021/acs.jpcc.6b00300
文献子类	Article
英文摘要	A pure fluorinated aluminophosphate [A1(8)P(8)O(32)F(4)center dot(C3H12N2)(2)(H2O)(2)] (ULM-6) has been synthesized via an aminothermal strategy, in which triisopropanolamine (TIPA) is used as the solvent together with the addition of propyleneurea and HF. The C-13 NMR spectrum demonstrates that 1,3-diaminopropane, the in situ decomposer of propyleneurea, is the real structure-directing agent (SDA) for ULM-6 crystals. The local Al, P, and F environments of the dehydrated ULM-6 are investigated by 1D and 2D solid-state NMR spectroscopy. The spatial proximities are extracted from F-19{Al-27}, F-19{P-31}, Al-27-{F-19}, and P-31{F-19} rotational-echo double resonance (REDOR) NMR experiments as well as F-19 -> P-31 heteronuclear correlation (HETCOR) NMR and {P-31}Al-27 HMQC NMR experiments, allowing a full assignment of all the F-19, Al-27, and P-31 resonances to the corresponding crystallographic sites. Moreover, it is found that the structure of ULM-6 is closely related to that of AIPO(4)-14. A combination of high-temperature powder XRD, thermal analysis, and F-19 NMR reveals that the removal of fluorine atoms at higher temperature is crucial to the phase transformation of ULM-6 to AlPO4-14. The calcined product shows high CO2/CH4 and CO2/N-2 selectivity with ratios of 15.5 and 29.1 (101 kPa, 25 degrees C), respectively.
WOS关键词	SOLID-STATE NMR ; ANGLE-SPINNING NMR ; STRUCTURE-DIRECTING AGENT ; QUADRUPOLAR NUCLEI ; SPECTROSCOPY ; SPECTRA ; AL-27 ; 1,3-DIAMINOPROPANE ; CRYSTALLIZATION ; SEPARATION
WOS研究方向	Chemistry ; Science & Technology - Other Topics ; Materials Science
语种	英语
出版者	AMER CHEMICAL SOC
WOS记录号	WOS:000377841400011
内容类型	期刊论文
源URL	[http://cas-ir.dicp.ac.cn/handle/321008/170564]
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, Grad Univ, 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, Wuhan Inst Phys & Math, Natl Ctr Magnet Resonance Wuhan, State Key Lab Magnet Resonance & Atom & Mol Phys, Wuhan 430071, Peoples R China
推荐引用方式 GB/T 7714	Wang, Dehua,Xu, Shutao,Yang, Miao,et al. Microporous Aluminophosphate ULM-6: Synthesis, NMR Assignment, and Its Transformation to AlPO4-14 Molecular Sieve[J]. JOURNAL OF PHYSICAL CHEMISTRY C,2016,120(22):11854-11863.
APA	Wang, Dehua,Xu, Shutao,Yang, Miao,Chu, Yueying,Tian, Peng,&Liu, Zhongmin.(2016).Microporous Aluminophosphate ULM-6: Synthesis, NMR Assignment, and Its Transformation to AlPO4-14 Molecular Sieve.JOURNAL OF PHYSICAL CHEMISTRY C,120(22),11854-11863.
MLA	Wang, Dehua,et al."Microporous Aluminophosphate ULM-6: Synthesis, NMR Assignment, and Its Transformation to AlPO4-14 Molecular Sieve".JOURNAL OF PHYSICAL CHEMISTRY C 120.22(2016):11854-11863.