Neutron diffraction determination of full structures of anhydrous Li-X and Li-Y zeolites

Journal Article · Fri Sep 01 04:00:00 EDT 1989 · Journal of Solid State Chemistry; (USA)

DOI:https://doi.org/10.1016/0022-4596(89)90227-2· OSTI ID:6838680

Forano, C ^[1]; Slade, R C.T.; Prince, E ^[2]; Andersen, E K; Andersen, I G.K. ^[3]

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1. Univ. of Exeter (England)
2. National Institute of Standards and Technology, Gaithersburg, MD (USA)
3. Odense Univ. (Denmark)

Virtually monoionic Li-X and Li-Y zeolites have been prepared by LiOH titration of parent NH{sub 4} zeolites. Structural studies have been performed at room temperature on the anhydrous zeolites, Li{sub 80.7}H{sub 4.9}Na{sub 0.4}Al{sub 86}Si{sub 106}O{sub 384} and Li{sub 46.0}H{sub 5.8}Na{sub 5.1}K{sub 0.1}Al{sub 57}Si{sub 135}O{sub 384}, by powder neutron diffraction profile refinement in order to locate Li{sup +} cations. The cell parameter are 24.6716(10) and 24.4498(12) {angstrom} for Li-X and Li-Y, respectively. Three positions have been found for Li{sup +}, sites I' and II in the six-ring windows of the sodalite unit and site III' in the supercage for the additional Li{sup +} of Li-X.

• OSTI ID: 6838680
• Journal Information: Journal of Solid State Chemistry; (USA), Journal Name: Journal of Solid State Chemistry; (USA) Vol. 82:1; ISSN 0022-4596; ISSN JSSCB
• Country of Publication: United States
• Language: English

Related Subjects

36 MATERIALS SCIENCE
360000* -- Materials
360102 -- Metals & Alloys-- Structure & Phase Studies
640302 -- Atomic
Molecular & Chemical Physics-- Atomic & Molecular Properties & Theory
74 ATOMIC AND MOLECULAR PHYSICS
ALKALI METALS
ALUMINIUM
COHERENT SCATTERING
DATA
DATA ANALYSIS
DIFFRACTION
ELEMENTS
EXPERIMENTAL DATA
HYDROGEN
INFORMATION
INORGANIC ION EXCHANGERS
ION EXCHANGE MATERIALS
LITHIUM
MATERIALS
MEASURING INSTRUMENTS
MEASURING METHODS
METALS
MINERALS
NEUTRON DIFFRACTION
NONMETALS
NUMERICAL DATA
OXYGEN
POTASSIUM
SCATTERING
SEMIMETALS
SILICON
SODIUM
ZEOLITES