Ion and water mobility in hydrated Li-LSX zeolite studied by 1H, 6Li and 7Li NMR spectroscopy and diffusometry

被引：21

作者：

Freude, D. ^{[1
]}

Beckert, S. ^{[1
]}

Stallmach, F. ^{[1
]}

Kurzhals, R. ^{[2
]}

Taeschner, D. ^{[2
]}

Toufar, H. ^{[3
]}

Kaerger, J. ^{[1
]}

Haase, J. ^{[1
]}

机构：

[1] Univ Leipzig, Fak Phys & Geowissensch, D-04103 Leipzig, Germany

[2] Clariant Prod GmbH, Werk Bitterfeld, D-06803 Bitterfeld, Germany

[3] Sud Chem INC, Louisville, KY 40232 USA

来源：

MICROPOROUS AND MESOPOROUS MATERIALS | 2013年 / 172卷

关键词：

Zeolite Li-LSX; MAS PFG NMR; Exchange spectroscopy; Self-diffusion; Ion mobility; SELF-DIFFUSION; STIMULATED ECHO; FIELD GRADIENTS; CHEMICAL-SHIFTS; H-1-NMR; LITHIUM; NAX;

D O I：

10.1016/j.micromeso.2013.01.011

中图分类号：

O69 [应用化学];

学科分类号：

081704 ;

摘要：

Crystallites of zeolite LSX with a diameter of about 10 mu m were synthesized. Crystals of this size are shown to allow the simultaneous investigation of intracrystalline mass transfer phenomena of water molecules and lithium ions in hydrated zeolite Li-LSX by NMR diffusometry. By MAS NMR spectroscopy with the H-1 and Li-6 nuclei, the water molecules and lithium ions are found to yield two signals, a major and a minor one, which may be attributed to locations in the sodalite cages and the supercages, respectively. By H-1 and Li-6 exchange spectroscopy the mean residence times in the sodalite cages at 373 K are found to be about 150 ms for the water molecules and about 40 ms for the lithium cations. PFG NMR self-diffusion measurements at 373 K yield a diffusivity of about 2 x 10(-11) m(2) s(-1) for the lithium ions, which is about one order of magnitude below the water diffusivity. (C) 2013 Elsevier Inc. All rights reserved.

引用

页码：174 / 181

页数：8

共 50 条

[1] Water and Cation Distribution in Fully and Partially Hydrated Li-LSX Zeolite
Wozniak, A.
Marler, B.
Angermund, K.
Gies, H.
CHEMISTRY OF MATERIALS, 2008, 20 (19) : 5968 - 5976
[2] Spectroscopy of 6Li using the 3He(7Li,α)6Li reaction
Kuramoto, R
Lichtenthäler, R
Lépine-Szily, A
Guimaraes, V
Lima, GF
Benjamim, E
de Faria, PN
BRAZILIAN JOURNAL OF PHYSICS, 2004, 34 (3A) : 933 - 935
[3] 6Li and 7Li solid-state NMR spectroscopy of nitrogen ceramic phases
Kempgens, P
Harris, RK
Thompson, DP
SOLID STATE NUCLEAR MAGNETIC RESONANCE, 1999, 15 (02) : 109 - 118
[4] DIFFUSION OF LI IONS AND WATER IN ZEOLITE LI-X STUDIED BY LI-7-NMR AND 1H-NMR
BASLER, WD
ZEITSCHRIFT FUR PHYSIKALISCHE CHEMIE NEUE FOLGE, 1987, 152 : 199 - 212
[5] Accessibility of cation site in zeolites by 6Li MAS NMR spectroscopy using paramagnetic O2 as a chemical shift agent.: The example of zeolite Li-LSX
Plévert, J
de Ménorval, LC
Di Renzo, F
Fajula, F
JOURNAL OF PHYSICAL CHEMISTRY B, 1998, 102 (18): : 3412 - 3416
[6] Cross Sections of Reactions 6Li(d,p 0)7Li, 6Li(d,p 1)7Li*(0.478 MeV), 6Li(d,p 2)7Li*(4.63 MeV), 6Li(d,p 4)7Li*(7.46 MeV), 6Li(d,n 0)7Be, 6Li(d,n 1)7Be*(0.429 MeV), 6Li(d,n 2)7Be*(4.57 MeV), 6Li(d,n 4)7Be*(7.21 MeV), and 6Li(d,x)7Be
Generalov L.N.
Zherebtsov V.A.
Selyankina S.M.
Bulletin of the Russian Academy of Sciences: Physics, 2022, 86 (08): : 937 - 947
[7] Investigating Li Microstructure Formation on Li Anodes for Lithium Batteries by in Situ 6Li/7Li NMR and SEM
Chang, Hee Jung
Trease, Nicole M.
Ilott, Andrew J.
Zeng, Dongli
Du, Lin-Shu
Jerschow, Alexej
Grey, Clare P.
JOURNAL OF PHYSICAL CHEMISTRY C, 2015, 119 (29): : 16443 - 16451
[8] 7Li/6Li isotope separation on inorganic ion-exchangers and NMR study of the H+/Li+ ion-exchange reaction
Kanzaki, Y
Suzuki, N
Chitrakar, R
Ohsaka, T
Abe, M
JOURNAL OF PHYSICAL CHEMISTRY B, 2002, 106 (05): : 988 - 995
[9] Aggregation studies of organolithium complexes by 6Li DOSY, 1H DOSY and 1H, 6Li HOESY NMR methods
Li, Weibin
Kagan, Gerald L.
Hopson, Russell
Williard, Paul G.
ABSTRACTS OF PAPERS OF THE AMERICAN CHEMICAL SOCIETY, 2009, 238
[10] 6Li and 7Li MAS NMR studies of lithium manganate cathode materials
J Am Chem Soc, 48 (12601-12613):

← 1 2 3 4 5 →