scholarly journals The relationship between oxide-ion conductivity and cation vacancy order in the hybrid hexagonal perovskite Ba3VWO8.5

2020 ◽  
Vol 8 (32) ◽  
pp. 16506-16514 ◽  
Author(s):  
Asma Gilane ◽  
Sacha Fop ◽  
Falak Sher ◽  
Ronald I. Smith ◽  
Abbie C. Mclaughlin
Keyword(s):  
Ionic Conductivity ◽  
Long Range ◽  
Cation Vacancy ◽  
Ion Conductivity ◽  
Cation Ordering ◽  
Oxygen Diffusivity ◽  
Oxide Ion Conductivity ◽  
The Relationship ◽  
Oxide Ion

Cation ordering in Ba3VWO8.5 disrupts long-range oxygen diffusivity parallel to the c-axis resulting in reduced ionic conductivity.

Structural origin of the enhanced ionic conductivity upon Nb doping in Sr11Mo4O23 defective double perovskite

2017 ◽  
Vol 46 (12) ◽  
pp. 3934-3942 ◽  
Author(s):  
C. D. Miranda ◽  
C. A. López ◽  
J. C. Pedregosa ◽  
J. A. Alonso
Keyword(s):  
Ionic Conductivity ◽  
Double Perovskite ◽  
Ion Conductivity ◽  
Oxide Ion Conductivity ◽  
Nb Doping ◽  
Oxide Ion

We report a substantial enhancement of the oxide-ion conductivity in Sr11Mo4O23 achieved by Nb doping the Mo sites.

Ionic Conductivity Study on the New High Oxide Conducting Perovskite LaGaO3

1998 ◽  
Vol 527 ◽  
Author(s):  
G.V.M. Kiruthika ◽  
U.V. Varadaraju
Keyword(s):  
Activation Energy ◽  
Ionic Conductivity ◽  
Single Phase ◽  
Ion Conductivity ◽  
Lanthanum Gallate ◽  
Migration Energy ◽  
Ion Migration ◽  
Oxide Ion Conductivity ◽  
Unit Cell Size ◽  
Oxide Ion

ABSTRACTOxide ion conductivity studies have been done on the Lanthanum Gallate based compounds. Yttrium substitution at the Ga site has been attempted to increase the unit cell size. Single phase was obtained for limited Y substituion i.e., La0.9Sr0.1Ga0.7Y0.1Mg0.2O3-x. It is found that the activation energy for the oxide ion conductivity has decreased for this composition. Based on the tolerance factor and B-site radius values, the migration energies were obtained for the LaGaO3 based perovskites. It is observed that migration energy has been significantly reduced upon substitution at the B-site. Absence of an enhancement in the conductivity with Yttrium substitution could be due to the vaccancy ordering inhibiting the oxide ion migration.

Effect of high bismuth deficiency on structure and oxide ion conductivity of a Bi0.55MoO4 single crystal

CrystEngComm ◽  
2015 ◽  
Vol 17 (45) ◽  
pp. 8746-8751
Author(s):  
Yang Zhang ◽  
Hengjiang Cong ◽  
Nianjing Ji ◽  
Jian Liu ◽  
Xiulan Duan ◽  
...  
Keyword(s):  
Ionic Conductivity ◽  
Single Crystal ◽  
Ion Conductivity ◽  
Oxide Ion Conductivity ◽  
Bismuth Molybdates ◽  
First Time ◽  
Oxide Ion

We report, for the first time, the ionic conductivity properties of two polymorphic structures of bismuth molybdates: Bi0.55MoO4 and Bi2(MoO4)3.

Effects of Pt dispersion on electronic and oxide ionic conductivity in Pr1.90Ni0.71Cu0.24Ga0.05O4

2016 ◽  
Vol 18 (16) ◽  
pp. 11125-11131 ◽  
Author(s):  
T. Ishihara ◽  
J. Hyodo ◽  
H. Schraknepper ◽  
K. Tominaga ◽  
S. Ida
Keyword(s):  
Electrical Conductivity ◽  
Ionic Conductivity ◽  
Oxygen Concentration ◽  
Ion Conductivity ◽  
Interstitial Oxygen ◽  
Oxide Ion Conductivity ◽  
Oxide Ionic Conductivity ◽  
Oxide Ion

Pt dispersion in Pr2NiO4 based oxides formed compressed strain and electrical conductivity decreases, however, the oxide ion conductivity increases by the compressed strain due to the decreased hole and the increased interstitial oxygen concentration.

Oxide Ion Conductivity, Phase Transitions, and Phase Separation in Fluorite-Based Bi38−xMo7+xO78+1.5x

2010 ◽  
Vol 22 (15) ◽  
pp. 4484-4494 ◽  
Author(s):  
Xiaojun Kuang ◽  
Yuandi Li ◽  
Chris D. Ling ◽  
Ray L. Withers ◽  
Ivana Radosavljević Evans
Keyword(s):  
Phase Transitions ◽  
Phase Separation ◽  
Ion Conductivity ◽  
Oxide Ion Conductivity ◽  
Oxide Ion

scholarly journals Crystal Structure of (Ba1-xLax)2In2O5+x and Its Oxide Ion Conductivity

2000 ◽  
Vol 68 (6) ◽  
pp. 531-533 ◽  
Author(s):  
Yoshiharu UCHIMOTO ◽  
Takeshi YAO ◽  
Hiromitsu TAKAGI ◽  
Toru INAGAKI ◽  
Hiroyuki YOSHIDA
Keyword(s):  
Crystal Structure ◽  
Ion Conductivity ◽  
Oxide Ion Conductivity ◽  
Oxide Ion

scholarly journals Average and Local Structure of Apatite-Type Germanates and Implications for Oxide Ion Conductivity

2019 ◽  
Vol 58 (21) ◽  
pp. 14853-14862 ◽  
Author(s):  
Matthew S. Chambers ◽  
Philip A. Chater ◽  
Ivana Radosavljevic Evans ◽  
John S. O. Evans
Keyword(s):  
Local Structure ◽  
Ion Conductivity ◽  
Oxide Ion Conductivity ◽  
Oxide Ion ◽  
Apatite Type
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