Solid-state NMR study of adsorbed water molecules in covalent organic framework materials

doi:10.1016/j.micromeso.2020.110287

CORC > 上海应用物理研究所 > 中国科学院上海应用物理研究所 > 中科院上海应用物理研究所2011-2017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
刊名	MICROPOROUS AND MESOPOROUS MATERIALS
	2020
卷号	305 页码:-
关键词	CRYSTALLINE EFFICIENT MEMBRANE ACID
ISSN号	1387-1811
DOI	10.1016/j.micromeso.2020.110287
文献子类	期刊论文
英文摘要	This 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.
语种	英语
内容类型	期刊论文
源URL	[http://ir.sinap.ac.cn/handle/331007/33143]
专题	上海应用物理研究所_中科院上海应用物理研究所2011-2017年
作者单位	1.Chinese Acad Sci, Key Lab Interfacial Phys & Technol, Shanghai Inst Appl Phys, Shanghai 201800, Peoples R China 2.East China Normal Univ, Dept Phys, Sch Phys & Elect Sci, Shanghai 200062, Peoples R China 3.East China Normal Univ, Shanghai Key Lab Magnet Resonance, Sch Phys & Elect Sci, Shanghai 200062, Peoples R China
推荐引用方式 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):-.