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Ionic conductivity of lanthanoid silicates, Ln10(SiO4)6O3(Ln = La, Nd, Sm, Gd, Dy, Y, Ho, Er and Yb)

Nakayama, Susumu, Kageyama, Tatsuya, Aono, Hiromichi, Sadaoka, Yoshihiko·1995·Journal of Materials Chemistry

Abstract

Ionic conductivities have been investigated for lanthanoid silicates of the Ln10(SiO4)6O3 solid solution series and related compounds. The activation energy and conductivity at 500 °C were estimated to be 69 kJ mol–1 and 1.8 × 10–4 S cm–1 for La10(SiO4)6O3 and 71 kJ mol–1 and 1.5 × 10–4 S cm–1 for Nd10(SiO4)6O3. The a and c lattice constants of the hexagonal phase decreased with decreasing radius of the Ln3+ ion for Ln10(SiO4)6O3(Ln = La, Nd, Sm, Gd and Dy). The activation energy increased and the conductivity decreased when Ln3+ ions with smaller ionic radii were used. The sole carrier in these materials is the O2– ion.

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Metadata

Authors
Nakayama, S., Kageyama, T., Aono, H., & Sadaoka, Y.
Venue
Journal of Materials Chemistry
Published
1995
Volume
5
Issue
11
Pages
1801
ISSN
  • 0959-9428 (ISSN-L)
  • 1364-5501
OpenAlex
W2122162157
Cited by
398
References
3
FWCI
0.33
Type
journal article
Language
en
Open access
closed

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CoChat. (2026). Citation check: Ionic conductivity of lanthanoid silicates, Ln10(SiO4)6O3(Ln = La, Nd, Sm, Gd, Dy, Y, Ho, Er and Yb). https://app.cochat.ai/papers/10.1039/jm9950501801
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Nakayama, S., Kageyama, T., Aono, H., & Sadaoka, Y. (1995). Ionic conductivity of lanthanoid silicates, Ln10(SiO4)6O3(Ln = La, Nd, Sm, Gd, Dy, Y, Ho, Er and Yb). Journal of Materials Chemistry. https://doi.org/10.1039/jm9950501801

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