CAS OpenIR  > 中科院上海应用物理研究所2011-2020年
Solid-state NMR study of adsorbed water molecules in covalent organic framework materials
Ma, JQ; Fu, XB; Li, YQ; Xia, T; Pan, LK; Yao, YF
2020
Source PublicationMICROPOROUS AND MESOPOROUS MATERIALS
ISSN1387-1811
Volume305Pages:-
Subtype期刊论文
AbstractThis study investigates the locations and interactions of adsorbed water molecules within a porous COF material, TpPa-1. The TpPa-1 samples include the as-synthesized powder samples and the samples first subjected to compression at high pressure and then ground into a powder form. The investigation applies a variety of advanced solid-state NMR techniques. The results indicate that the adsorbed water molecules in the as-synthesized and compressed samples can exist in different locations and bonding states. Here, the adsorbed water molecules in the as-synthesized samples are found to be mainly located in the pore spaces and interact only loosely with the chemical groups of the material. In contrast, a proportion of the water molecules in the compressed samples enter into the interstices between the layers and interact with the amino groups and the carbonyl groups of the material. The relocation of the water molecules in the compressed samples provides a plausible explanation for the molecular origin of the water adsorption capability of TpPa-1. In addition, the revealed weak interactions between the water molecules and the chemical groups of TpPa-1 are correlated with the molecular origin of the high water permeance.
KeywordCRYSTALLINE EFFICIENT MEMBRANE ACID
DOI10.1016/j.micromeso.2020.110287
Indexed BySCI ; EI
Language英语
Citation statistics
Cited Times:4[WOS]   [WOS Record]     [Related Records in WOS]
Document Type期刊论文
Identifierhttp://ir.sinap.ac.cn/handle/331007/33143
Collection中科院上海应用物理研究所2011-2020年
Affiliation1.East China Normal Univ, Dept Phys, Sch Phys & Elect Sci, Shanghai 200062, Peoples R China
2.East China Normal Univ, Shanghai Key Lab Magnet Resonance, Sch Phys & Elect Sci, Shanghai 200062, Peoples R China
3.Chinese Acad Sci, Key Lab Interfacial Phys & Technol, Shanghai Inst Appl Phys, Shanghai 201800, Peoples R China
Recommended Citation
GB/T 7714
Ma, JQ,Fu, XB,Li, YQ,et al. Solid-state NMR study of adsorbed water molecules in covalent organic framework materials[J]. MICROPOROUS AND MESOPOROUS MATERIALS,2020,305:-.
APA Ma, JQ,Fu, XB,Li, YQ,Xia, T,Pan, LK,&Yao, YF.(2020).Solid-state NMR study of adsorbed water molecules in covalent organic framework materials.MICROPOROUS AND MESOPOROUS MATERIALS,305,-.
MLA Ma, JQ,et al."Solid-state NMR study of adsorbed water molecules in covalent organic framework materials".MICROPOROUS AND MESOPOROUS MATERIALS 305(2020):-.
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