Electrical transport properties of doubly Gd- and Al-doped LaGa0.9Mg0.1O2.95 perovskite compounds

Masahiro Kajitani; Motohide Matsuda; Michihiro Miyake

doi:10.1016/j.ssi.2006.03.011

Electrical transport properties of doubly Gd- and Al-doped LaGa_0.9Mg_0.1O_2.95 perovskite compounds

Masahiro Kajitani, Motohide Matsuda, Michihiro Miyake

Graduate School of Environmental and Life Science

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

3 Citations (Scopus)

Abstract

Oxide ion conduction properties of La_1-xGd_xGa_0.8Al_0.1Mg_0.1O_2.95 were discussed in terms of tolerance factor and free volume. The oxide ion conductivities increased with Gd content and attained the maximum at x = 0.10. Enhancement in oxide ion conduction up to x = 0.10 was attributable to the approach to an optimum tolerance factor, which is reportedly around 0.96, whereas degradation above x = 0.10 was considered to result from the reduction of free volume caused by replacement of smaller Gd for La.

Original language	English
Pages (from-to)	1721-1724
Number of pages	4
Journal	Solid State Ionics
Volume	177
Issue number	19-25 SPEC. ISS.
DOIs	https://doi.org/10.1016/j.ssi.2006.03.011
Publication status	Published - Oct 15 2006

Keywords

Conduction property
Lanthanum gallate
Perovskite
Tolerance factor

ASJC Scopus subject areas

Chemistry(all)
Materials Science(all)
Condensed Matter Physics

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title = "Electrical transport properties of doubly Gd- and Al-doped LaGa0.9Mg0.1O2.95 perovskite compounds",

abstract = "Oxide ion conduction properties of La1-xGdxGa0.8Al0.1Mg0.1O2.95 were discussed in terms of tolerance factor and free volume. The oxide ion conductivities increased with Gd content and attained the maximum at x = 0.10. Enhancement in oxide ion conduction up to x = 0.10 was attributable to the approach to an optimum tolerance factor, which is reportedly around 0.96, whereas degradation above x = 0.10 was considered to result from the reduction of free volume caused by replacement of smaller Gd for La.",

keywords = "Conduction property, Lanthanum gallate, Perovskite, Tolerance factor",

author = "Masahiro Kajitani and Motohide Matsuda and Michihiro Miyake",

note = "Funding Information: M. Kajitani thanks the Japan Society for the Promotion of Science (JSPS) for financial support to start this study. This work was also funded in part by a Grant-in-Aid for Scientific Research (B) (16369331) from JSPS and the Okayama University 21st Century COE Program “Strategic Solid Waste Management of Sustainable Society”. ",

year = "2006",

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language = "English",

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journal = "Solid State Ionics",

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TY - JOUR

T1 - Electrical transport properties of doubly Gd- and Al-doped LaGa0.9Mg0.1O2.95 perovskite compounds

AU - Kajitani, Masahiro

AU - Matsuda, Motohide

AU - Miyake, Michihiro

N1 - Funding Information: M. Kajitani thanks the Japan Society for the Promotion of Science (JSPS) for financial support to start this study. This work was also funded in part by a Grant-in-Aid for Scientific Research (B) (16369331) from JSPS and the Okayama University 21st Century COE Program “Strategic Solid Waste Management of Sustainable Society”.

PY - 2006/10/15

Y1 - 2006/10/15

N2 - Oxide ion conduction properties of La1-xGdxGa0.8Al0.1Mg0.1O2.95 were discussed in terms of tolerance factor and free volume. The oxide ion conductivities increased with Gd content and attained the maximum at x = 0.10. Enhancement in oxide ion conduction up to x = 0.10 was attributable to the approach to an optimum tolerance factor, which is reportedly around 0.96, whereas degradation above x = 0.10 was considered to result from the reduction of free volume caused by replacement of smaller Gd for La.

AB - Oxide ion conduction properties of La1-xGdxGa0.8Al0.1Mg0.1O2.95 were discussed in terms of tolerance factor and free volume. The oxide ion conductivities increased with Gd content and attained the maximum at x = 0.10. Enhancement in oxide ion conduction up to x = 0.10 was attributable to the approach to an optimum tolerance factor, which is reportedly around 0.96, whereas degradation above x = 0.10 was considered to result from the reduction of free volume caused by replacement of smaller Gd for La.

KW - Conduction property

KW - Lanthanum gallate

KW - Perovskite

KW - Tolerance factor

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