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Title: Lithium conductivity in an Li-bearing double-ring silicate mineral, sogdianite

Abstract

The crystal structure of an Li-bearing double-ring silicate mineral, sogdianite ((Zr{sub 1.18}Fe{sup 3+} {sub 0.55}Ti{sub 0.24}Al{sub 0.03})(Y {sub 1.64},Na{sub 0.36})K{sub 0.85}[Li{sub 3}Si{sub 12}O{sub 30}], P6/mcc, a{approx}10.06 A, c{approx}14.30 A, Z=2), was investigated by neutron powder diffraction from 300 up to 1273 K. Rietveld refinements of displacement parameters revealed high anisotropic Li motions perpendicular to the crystallographic c-axis, indicating an exchange process between tetrahedral T2 and octahedral A sites. AC impedance spectra of a sogdianite single crystal (0.04x0.09x0.25 cm{sup 3}) show that the material is an ionic conductor with conductivity values of {sigma}=4.1x10{sup -5} S cm{sup -1} at 923 K and 1.2x10{sup -3} S cm{sup -1} at 1219 K perpendicular to the c-axis, involving two relaxation processes with activation energies of 1.26(3) and 1.08(3) eV, respectively. - Graphical abstract: Structure of sogdianite with atomic displacement parameter (ADP) ellipsoids at 1273 K.

Authors:
 [1];  [2];  [3];  [4];  [5]
  1. Section Crystallography, Earth and Environmental Sciences, Ludwig-Maximilians-Universitaet Munich (Germany), E-mail: sohyun.park@lmu.de
  2. Material- and Earthsciences, Technische Universitaet Darmstadt (Germany)
  3. (FRMII), Garching (Germany)
  4. Section Crystallography, Earth and Environmental Sciences, Ludwig-Maximilians-Universitaet Munich (Germany)
  5. Section Geophysics, Earth and Environmental Sciences, Ludwig-Maximilians-Universitaet Munich (Germany)
Publication Date:
OSTI Identifier:
21015778
Resource Type:
Journal Article
Resource Relation:
Journal Name: Journal of Solid State Chemistry; Journal Volume: 180; Journal Issue: 4; Other Information: DOI: 10.1016/j.jssc.2007.02.001; PII: S0022-4596(07)00074-6; Copyright (c) 2007 Elsevier Science B.V., Amsterdam, The Netherlands, All rights reserved; Country of input: International Atomic Energy Agency (IAEA)
Country of Publication:
United States
Language:
English
Subject:
37 INORGANIC, ORGANIC, PHYSICAL AND ANALYTICAL CHEMISTRY; ACTIVATION ENERGY; ANISOTROPY; ATOMIC DISPLACEMENTS; CRYSTAL STRUCTURE; CRYSTALLOGRAPHY; ELECTRIC CONDUCTORS; IMPEDANCE; LITHIUM SILICATES; MONOCRYSTALS; NEUTRON DIFFRACTION; SILICATE MINERALS; SPECTRA; TEMPERATURE RANGE 1000-4000 K

Citation Formats

Park, S.-H., Hoelzel, M., Forschungsneutronenquelle Heinz Maier-Leibnitz, Boysen, H., and Schmidbauer, E. Lithium conductivity in an Li-bearing double-ring silicate mineral, sogdianite. United States: N. p., 2007. Web. doi:10.1016/j.jssc.2007.02.001.
Park, S.-H., Hoelzel, M., Forschungsneutronenquelle Heinz Maier-Leibnitz, Boysen, H., & Schmidbauer, E. Lithium conductivity in an Li-bearing double-ring silicate mineral, sogdianite. United States. doi:10.1016/j.jssc.2007.02.001.
Park, S.-H., Hoelzel, M., Forschungsneutronenquelle Heinz Maier-Leibnitz, Boysen, H., and Schmidbauer, E. Sun . "Lithium conductivity in an Li-bearing double-ring silicate mineral, sogdianite". United States. doi:10.1016/j.jssc.2007.02.001.
@article{osti_21015778,
title = {Lithium conductivity in an Li-bearing double-ring silicate mineral, sogdianite},
author = {Park, S.-H. and Hoelzel, M. and Forschungsneutronenquelle Heinz Maier-Leibnitz and Boysen, H. and Schmidbauer, E.},
abstractNote = {The crystal structure of an Li-bearing double-ring silicate mineral, sogdianite ((Zr{sub 1.18}Fe{sup 3+} {sub 0.55}Ti{sub 0.24}Al{sub 0.03})(Y {sub 1.64},Na{sub 0.36})K{sub 0.85}[Li{sub 3}Si{sub 12}O{sub 30}], P6/mcc, a{approx}10.06 A, c{approx}14.30 A, Z=2), was investigated by neutron powder diffraction from 300 up to 1273 K. Rietveld refinements of displacement parameters revealed high anisotropic Li motions perpendicular to the crystallographic c-axis, indicating an exchange process between tetrahedral T2 and octahedral A sites. AC impedance spectra of a sogdianite single crystal (0.04x0.09x0.25 cm{sup 3}) show that the material is an ionic conductor with conductivity values of {sigma}=4.1x10{sup -5} S cm{sup -1} at 923 K and 1.2x10{sup -3} S cm{sup -1} at 1219 K perpendicular to the c-axis, involving two relaxation processes with activation energies of 1.26(3) and 1.08(3) eV, respectively. - Graphical abstract: Structure of sogdianite with atomic displacement parameter (ADP) ellipsoids at 1273 K.},
doi = {10.1016/j.jssc.2007.02.001},
journal = {Journal of Solid State Chemistry},
number = 4,
volume = 180,
place = {United States},
year = {Sun Apr 15 00:00:00 EDT 2007},
month = {Sun Apr 15 00:00:00 EDT 2007}
}