Chemical insertion in the perovskite solid solutions Pr 0.5+x-yLi0.5-3xBiy□2xTiO 3: Implications on the electrical properties

M. F. García-Sánchez; N. Fernández; M. L. Martínez-Sarrión; L. Mestres; G. Santana; D. W. Lewis; A. R. Ruiz-Salvador

doi:10.1016/j.mseb.2012.02.025

Chemical insertion in the perovskite solid solutions Pr _0.5+x-yLi_0.5-3xBi_y□_2xTiO ₃: Implications on the electrical properties

M. F. García-Sánchez, N. Fernández, M. L. Martínez-Sarrión, L. Mestres, G. Santana, D. W. Lewis, A. R. Ruiz-Salvador

Unidad Profesional Interdisciplinaria de Ingeniería y Tecnologías Avanzadas (UPIITA)

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Abstract

Chemical insertion and de-insertion of lithium in pellet samples of the solid solutions Pr_0.5+x-yLi _0.5-3xBi_y□_2xTiO₃ were studied. Two regions of the phase diagram are studied: one having constant composition of bismuth and the other of lithium. The amount of inserted lithium depends on both the number of vacancies and the amount of bismuth in the original samples. The conductivity of the samples is directly related to the amount of inserted lithium and the activation energy depends on the unit cell volume. An analysis of the electronic and ionic components of the conductivity reveals that the untreated materials are pure ionic conductors, while after Li-insertion an additional electronic conductivity (t < 10^-2) occurs, due to a polaron mechanism, with an activation energy of 0.8 eV.

Original language	English
Pages (from-to)	563-569
Number of pages	7
Journal	Materials Science and Engineering B: Solid-State Materials for Advanced Technology
Volume	177
Issue number	8
DOIs	https://doi.org/10.1016/j.mseb.2012.02.025
State	Published - 15 May 2012

Keywords

Chemical insertion
Impedance spectroscopy
Kramers-Kronig relations
Lithium ion conductors
Mixed conductors

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10.1016/j.mseb.2012.02.025

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García-Sánchez, M. F., Fernández, N., Martínez-Sarrión, M. L., Mestres, L., Santana, G., Lewis, D. W., & Ruiz-Salvador, A. R. (2012). Chemical insertion in the perovskite solid solutions Pr _0.5+x-yLi_0.5-3xBi_y□_2xTiO ₃: Implications on the electrical properties. Materials Science and Engineering B: Solid-State Materials for Advanced Technology, 177(8), 563-569. https://doi.org/10.1016/j.mseb.2012.02.025

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title = "Chemical insertion in the perovskite solid solutions Pr 0.5+x-yLi0.5-3xBiy□2xTiO 3: Implications on the electrical properties",

abstract = "Chemical insertion and de-insertion of lithium in pellet samples of the solid solutions Pr0.5+x-yLi 0.5-3xBiy□2xTiO3 were studied. Two regions of the phase diagram are studied: one having constant composition of bismuth and the other of lithium. The amount of inserted lithium depends on both the number of vacancies and the amount of bismuth in the original samples. The conductivity of the samples is directly related to the amount of inserted lithium and the activation energy depends on the unit cell volume. An analysis of the electronic and ionic components of the conductivity reveals that the untreated materials are pure ionic conductors, while after Li-insertion an additional electronic conductivity (t < 10-2) occurs, due to a polaron mechanism, with an activation energy of 0.8 eV.",

keywords = "Chemical insertion, Impedance spectroscopy, Kramers-Kronig relations, Lithium ion conductors, Mixed conductors",

author = "Garc{\'i}a-S{\'a}nchez, {M. F.} and N. Fern{\'a}ndez and Mart{\'i}nez-Sarri{\'o}n, {M. L.} and L. Mestres and G. Santana and Lewis, {D. W.} and Ruiz-Salvador, {A. R.}",

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García-Sánchez, MF, Fernández, N, Martínez-Sarrión, ML, Mestres, L, Santana, G, Lewis, DW & Ruiz-Salvador, AR 2012, 'Chemical insertion in the perovskite solid solutions Pr _0.5+x-yLi_0.5-3xBi_y□_2xTiO ₃: Implications on the electrical properties', Materials Science and Engineering B: Solid-State Materials for Advanced Technology, vol. 177, no. 8, pp. 563-569. https://doi.org/10.1016/j.mseb.2012.02.025

Chemical insertion in the perovskite solid solutions Pr _0.5+x-yLi_0.5-3xBi_y□_2xTiO ₃: Implications on the electrical properties. / García-Sánchez, M. F.; Fernández, N.; Martínez-Sarrión, M. L. et al.
In: Materials Science and Engineering B: Solid-State Materials for Advanced Technology, Vol. 177, No. 8, 15.05.2012, p. 563-569.

Research output: Contribution to journal › Article › peer-review

TY - JOUR

T1 - Chemical insertion in the perovskite solid solutions Pr 0.5+x-yLi0.5-3xBiy□2xTiO 3

T2 - Implications on the electrical properties

AU - García-Sánchez, M. F.

AU - Fernández, N.

AU - Martínez-Sarrión, M. L.

AU - Mestres, L.

AU - Santana, G.

AU - Lewis, D. W.

AU - Ruiz-Salvador, A. R.

PY - 2012/5/15

Y1 - 2012/5/15

N2 - Chemical insertion and de-insertion of lithium in pellet samples of the solid solutions Pr0.5+x-yLi 0.5-3xBiy□2xTiO3 were studied. Two regions of the phase diagram are studied: one having constant composition of bismuth and the other of lithium. The amount of inserted lithium depends on both the number of vacancies and the amount of bismuth in the original samples. The conductivity of the samples is directly related to the amount of inserted lithium and the activation energy depends on the unit cell volume. An analysis of the electronic and ionic components of the conductivity reveals that the untreated materials are pure ionic conductors, while after Li-insertion an additional electronic conductivity (t < 10-2) occurs, due to a polaron mechanism, with an activation energy of 0.8 eV.

AB - Chemical insertion and de-insertion of lithium in pellet samples of the solid solutions Pr0.5+x-yLi 0.5-3xBiy□2xTiO3 were studied. Two regions of the phase diagram are studied: one having constant composition of bismuth and the other of lithium. The amount of inserted lithium depends on both the number of vacancies and the amount of bismuth in the original samples. The conductivity of the samples is directly related to the amount of inserted lithium and the activation energy depends on the unit cell volume. An analysis of the electronic and ionic components of the conductivity reveals that the untreated materials are pure ionic conductors, while after Li-insertion an additional electronic conductivity (t < 10-2) occurs, due to a polaron mechanism, with an activation energy of 0.8 eV.

KW - Chemical insertion

KW - Impedance spectroscopy

KW - Kramers-Kronig relations

KW - Lithium ion conductors

KW - Mixed conductors

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VL - 177

SP - 563

EP - 569

JO - Materials Science and Engineering B: Solid-State Materials for Advanced Technology

JF - Materials Science and Engineering B: Solid-State Materials for Advanced Technology

IS - 8

ER -

Chemical insertion in the perovskite solid solutions Pr _0.5+x-yLi_0.5-3xBi_y□_2xTiO ₃: Implications on the electrical properties

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