Effects of rare earth cations doped for La site on the oxide ionic conductivity of LaGaO3-based perovskite type oxide

Tatsumi Ishihara, Hideaki Matsuda, Yusaku Takita

Research output: Contribution to journalArticle

265 Citations (Scopus)

Abstract

For the suppression of hole conduction in the high oxygen partial pressure range, effects of the addition of small amount of rare earth cations were investigated in this study with La0.8Sr0.2Ga0.8Mg0.2O3 - δ. It was found that the addition of small amount of rare earth cations for La site in LaGaO3 was effective for the suppression of hole conduction under high oxygen partial pressure, albeit the electrical conductivity decreased slightly. In particular, perovskite oxide of (La0.9Nd0.1)0.8Sr0.2Ga0.8Mg0.2O3 - δ exhibits almost pure oxide ionic conduction over the oxygen partial pressure from 1 to 10-21 atm, and the electrical conductivity attains the value of log (σ/S cm-1) = -0.5 at 1223 K.

Original languageEnglish
Pages (from-to)147-151
Number of pages5
JournalSolid State Ionics
Volume79
Issue numberC
DOIs
Publication statusPublished - Jan 1 1995
Externally publishedYes

Fingerprint

Ionic conductivity
Partial pressure
Perovskite
Oxides
Rare earths
ion currents
partial pressure
Cations
rare earth elements
Positive ions
Oxygen
cations
conduction
oxides
oxygen
retarding
Ionic conduction
electrical resistivity
perovskite
Electric Conductivity

All Science Journal Classification (ASJC) codes

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

Cite this

Effects of rare earth cations doped for La site on the oxide ionic conductivity of LaGaO3-based perovskite type oxide. / Ishihara, Tatsumi; Matsuda, Hideaki; Takita, Yusaku.

In: Solid State Ionics, Vol. 79, No. C, 01.01.1995, p. 147-151.

Research output: Contribution to journalArticle

@article{4b0f877f828e4768aee3bc0d166a308d,
title = "Effects of rare earth cations doped for La site on the oxide ionic conductivity of LaGaO3-based perovskite type oxide",
abstract = "For the suppression of hole conduction in the high oxygen partial pressure range, effects of the addition of small amount of rare earth cations were investigated in this study with La0.8Sr0.2Ga0.8Mg0.2O3 - δ. It was found that the addition of small amount of rare earth cations for La site in LaGaO3 was effective for the suppression of hole conduction under high oxygen partial pressure, albeit the electrical conductivity decreased slightly. In particular, perovskite oxide of (La0.9Nd0.1)0.8Sr0.2Ga0.8Mg0.2O3 - δ exhibits almost pure oxide ionic conduction over the oxygen partial pressure from 1 to 10-21 atm, and the electrical conductivity attains the value of log (σ/S cm-1) = -0.5 at 1223 K.",
author = "Tatsumi Ishihara and Hideaki Matsuda and Yusaku Takita",
year = "1995",
month = "1",
day = "1",
doi = "10.1016/0167-2738(95)00054-A",
language = "English",
volume = "79",
pages = "147--151",
journal = "Solid State Ionics",
issn = "0167-2738",
publisher = "Elsevier",
number = "C",

}

TY - JOUR

T1 - Effects of rare earth cations doped for La site on the oxide ionic conductivity of LaGaO3-based perovskite type oxide

AU - Ishihara, Tatsumi

AU - Matsuda, Hideaki

AU - Takita, Yusaku

PY - 1995/1/1

Y1 - 1995/1/1

N2 - For the suppression of hole conduction in the high oxygen partial pressure range, effects of the addition of small amount of rare earth cations were investigated in this study with La0.8Sr0.2Ga0.8Mg0.2O3 - δ. It was found that the addition of small amount of rare earth cations for La site in LaGaO3 was effective for the suppression of hole conduction under high oxygen partial pressure, albeit the electrical conductivity decreased slightly. In particular, perovskite oxide of (La0.9Nd0.1)0.8Sr0.2Ga0.8Mg0.2O3 - δ exhibits almost pure oxide ionic conduction over the oxygen partial pressure from 1 to 10-21 atm, and the electrical conductivity attains the value of log (σ/S cm-1) = -0.5 at 1223 K.

AB - For the suppression of hole conduction in the high oxygen partial pressure range, effects of the addition of small amount of rare earth cations were investigated in this study with La0.8Sr0.2Ga0.8Mg0.2O3 - δ. It was found that the addition of small amount of rare earth cations for La site in LaGaO3 was effective for the suppression of hole conduction under high oxygen partial pressure, albeit the electrical conductivity decreased slightly. In particular, perovskite oxide of (La0.9Nd0.1)0.8Sr0.2Ga0.8Mg0.2O3 - δ exhibits almost pure oxide ionic conduction over the oxygen partial pressure from 1 to 10-21 atm, and the electrical conductivity attains the value of log (σ/S cm-1) = -0.5 at 1223 K.

UR - http://www.scopus.com/inward/record.url?scp=0029342212&partnerID=8YFLogxK

UR - http://www.scopus.com/inward/citedby.url?scp=0029342212&partnerID=8YFLogxK

U2 - 10.1016/0167-2738(95)00054-A

DO - 10.1016/0167-2738(95)00054-A

M3 - Article

AN - SCOPUS:0029342212

VL - 79

SP - 147

EP - 151

JO - Solid State Ionics

JF - Solid State Ionics

SN - 0167-2738

IS - C

ER -