DICP OpenIR
Subject Area物理化学
Multinuclear Solid-State NMR Studies on the Formation Mechanism of Aluminophosphate Molecular Sieves in Ionic Liquids
Xu, Renshun1; Zhang, Weiping2; Xu, Jun3; Tian, Zhijian1; Deng, Feng3; Han, Xiuwen1; Bao, Xinhe1; Zhang WP(张维萍); Bao XH(包信和)
Source PublicationJOURNAL OF PHYSICAL CHEMISTRY C
2013-03-21
DOI10.1021/jp400422z
Volume117Issue:11Pages:5848-5854
Indexed BySCI
Cooperation Status
SubtypeArticle
Department5,DNL08
Funding Project502,DNL0802
Contribution Rank待补充
WOS HeadingsScience & Technology ; Physical Sciences ; Technology
Funding Organization1,1 ; 1,1 ; 1,1 ; 1,1
WOS SubjectChemistry, Physical ; Nanoscience & Nanotechnology ; Materials Science, Multidisciplinary
WOS Research AreaChemistry ; Science & Technology - Other Topics ; Materials Science
WOS KeywordIONOTHERMAL SYNTHESIS ; ZEOLITE ; FRAMEWORKS ; SPECTROSCOPY ; INSIGHTS ; PHASES ; SYSTEM ; AMINES
AbstractIn the present work, multinuclear solid-state NMR techniques together with power X-ray diffraction (XRD) and scanning electron microscopy (SEM) were employed to monitor the crystallization process of aluminophosphate AlPO4-11 molecular sieves in 1-ethyl-3-methylimidazolium bromide ([emim]Br) ionic liquids (LLs). The local environments of the selected solid samples were probed by one-dimensional Al-27, P-31, and F-19 MAS NMR experiments, and more information was obtained from two-dimensional Al-27 -> P-31 heteronuclear correlation (HETCOR) and Al-27 triple-quantum MAS (3QMAS) experiments. It is found that a large amount of amorphous aluminophosphates was formed with the F-Al-oct-O-P-par and Al-tet-O-P-par structures in the initial stage of aging. With increasing crystallization time, the partially condensed framework phosphorus species disappeared gradually and became fully condensed. Meanwhile, the octahedral Al was transformed into the pentahedra] and tetrahedral Al species with the structures of F-Al-penta-O-P-ful and Al-tet-O-P-ful in the AlPO4-11 frameworks. During the crystallization process, [emim] cations acting as the structure-directing agents were occluded into the channels, and F- anions were connected with pentahedral Al in the final AlPO4-11 phase. All of these findings can allow proposing a possible formation mechanism for the synthesis of AlPO4-11 in ionic liquids.
Language英语
Funding Organization1,1 ; 1,1 ; 1,1 ; 1,1
URL查看原文
WOS IDWOS:000316773000039
Citation statistics
Document Type期刊论文
Identifierhttp://cas-ir.dicp.ac.cn/handle/321008/119310
Collection中国科学院大连化学物理研究所
Corresponding AuthorZhang WP(张维萍); Bao XH(包信和)
Affiliation1.Chinese Acad Sci, Dalian Inst Chem Phys, Dalian Natl Lab Clean Energy, State Key Lab Catalysis, Dalian 116023, Peoples R China
2.Dalian Univ Technol, State Key Lab Fine Chem, Dalian 116024, Peoples R China
3.Chinese Acad Sci, State Key Lab Magnet Resonance & Atom & Mol Phys, Wuhan Ctr Magnet Resonance, Wuhan Inst Phys & Math, Wuhan 430071, Peoples R China
Recommended Citation
GB/T 7714
Xu, Renshun,Zhang, Weiping,Xu, Jun,et al. Multinuclear Solid-State NMR Studies on the Formation Mechanism of Aluminophosphate Molecular Sieves in Ionic Liquids[J]. JOURNAL OF PHYSICAL CHEMISTRY C,2013,117(11):5848-5854.
APA Xu, Renshun.,Zhang, Weiping.,Xu, Jun.,Tian, Zhijian.,Deng, Feng.,...&包信和.(2013).Multinuclear Solid-State NMR Studies on the Formation Mechanism of Aluminophosphate Molecular Sieves in Ionic Liquids.JOURNAL OF PHYSICAL CHEMISTRY C,117(11),5848-5854.
MLA Xu, Renshun,et al."Multinuclear Solid-State NMR Studies on the Formation Mechanism of Aluminophosphate Molecular Sieves in Ionic Liquids".JOURNAL OF PHYSICAL CHEMISTRY C 117.11(2013):5848-5854.
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