First-principles analysis of oxide-ion conduction mechanism in lanthanum silicate

2012 ◽  
Vol 22 (15) ◽  
pp. 7265 ◽  
Author(s):  
Katsuyuki Matsunaga ◽  
Kazuaki Toyoura
Keyword(s):  
First Principles ◽  
Conduction Mechanism ◽  
Ion Conduction ◽  
Oxide Ion Conduction ◽  
Ion Conduction Mechanism ◽  
Lanthanum Silicate ◽  
Oxide Ion

First-principles analysis of oxide-ion conduction mechanism in neodymium silicate

2020 ◽  
Vol 355 ◽  
pp. 115367
Author(s):  
Yusuke Ogura ◽  
Tatsuya Yokoi ◽  
Kazuaki Toyoura ◽  
Katsuyuki Matsunaga
Keyword(s):  
First Principles ◽  
Conduction Mechanism ◽  
Ion Conduction ◽  
Oxide Ion Conduction ◽  
Ion Conduction Mechanism ◽  
Oxide Ion

scholarly journals Local structure and oxide-ion conduction mechanism in apatite-type lanthanum silicates

2017 ◽  
Vol 18 (1) ◽  
pp. 644-653 ◽  
Author(s):  
Olivier Masson ◽  
Abid Berghout ◽  
Emilie Béchade ◽  
Jenny Jouin ◽  
Philippe Thomas ◽  
...  
Keyword(s):  
Local Structure ◽  
Conduction Mechanism ◽  
Ion Conduction ◽  
Lanthanum Silicates ◽  
Oxide Ion Conduction ◽  
Ion Conduction Mechanism ◽  
Oxide Ion ◽  
Apatite Type

Investigation of the Oxide Ion Conduction Mechanism in LaGaO3-Based Electrolytes through High-Temperature Neutron Powder Diffraction

2007 ◽  
Vol 350 ◽  
pp. 147-150
Author(s):  
Masahiro Kajitani ◽  
Motohide Matsuda ◽  
Akinori Hoshikawa ◽  
Takashi Kamiyama ◽  
Fujio Izumi ◽  
...  
Keyword(s):  
Conduction Mechanism ◽  
Vacancy Concentration ◽  
Oxygen Vacancy Concentration ◽  
Ion Conduction ◽  
Double Doping ◽  
Oxide Ions ◽  
Oxide Ion Conduction ◽  
Ion Conduction Mechanism ◽  
Oxide Ion ◽  
Conduction Properties

The crystal structure and oxide ion conduction properties of La0.9Sr0.1Ga0.9Mg0.1O2.9 were compared with those of LaGa0.8Mg0.2O2.9 with the same oxygen vacancy concentration. Although La0.9Sr0.1Ga0.9Mg0.1O2.9 had a smaller free space through which oxide ions pass compared to LaGa0.8Mg0.2O2.9, the activation energy of oxide ion conduction in the former was lower. This was attributed to the large displacement of La and Ga in La0.9Sr0.1Ga0.9Mg0.1O2.9. The GaO6 octahedral tilts in the LaGaO3 perovskite structure were reduced by double doping with Sr and Mg. Reduction of the GaO6 octahedral tilt proved effective for oxide ion conduction.

Oxide-ion conduction via interstitials in scheelite-type LaNbO4: a first-principles study

2018 ◽  
Vol 6 (25) ◽  
pp. 12004-12011 ◽  
Author(s):  
Kazuaki Toyoura ◽  
Yusuke Sakakibara ◽  
Tatsuya Yokoi ◽  
Atsutomo Nakamura ◽  
Katsuyuki Matsunaga
Keyword(s):  
First Principles ◽  
First Principles Calculations ◽  
Ion Conduction ◽  
First Principles Study ◽  
Oxide Ion Conduction ◽  
Oxide Ion

The interstitial oxide-ion mechanism in scheelite-type lanthanum niobate has theoretically been analyzed using first-principles calculations.

scholarly journals Cooperative oxide-ion conduction in apatite-type lanthanum germanate—A first principles study

2017 ◽  
Vol 125 (3) ◽  
pp. 105-111 ◽  
Author(s):  
Kouta IMAIZUMI ◽  
Kazuaki TOYOURA ◽  
Atsutomo NAKAMURA ◽  
Katsuyuki MATSUNAGA
Keyword(s):  
First Principles ◽  
Ion Conduction ◽  
First Principles Study ◽  
Oxide Ion Conduction ◽  
Oxide Ion ◽  
Apatite Type

Effect of La vacancies on the oxide-ion conduction in lanthanum silicate apatites

2021 ◽  
Vol 373 ◽  
pp. 115793
Author(s):  
Yusuke Ogura ◽  
Tatsuya Yokoi ◽  
Kotaro Fujii ◽  
Masatomo Yashima ◽  
Katsuyuki Matsunaga
Keyword(s):  
Ion Conduction ◽  
Oxide Ion Conduction ◽  
Lanthanum Silicate ◽  
Oxide Ion

Effect of Boron Substitution on Oxide-Ion Conduction in c-Axis-Oriented Apatite-Type Lanthanum Silicate

2020 ◽  
Vol 124 (5) ◽  
pp. 2879-2885 ◽  
Author(s):  
Shingo Ide ◽  
Hiroki Takahashi ◽  
Isamu Yashima ◽  
Koichi Suematsu ◽  
Ken Watanabe ◽  
...  
Keyword(s):  
Ion Conduction ◽  
Oxide Ion Conduction ◽  
Lanthanum Silicate ◽  
Oxide Ion ◽  
Apatite Type ◽  
Boron Substitution

Anisotropy of oxide-ion conduction in apatite-type lanthanum silicate

2012 ◽  
Vol 217 ◽  
pp. 40-45 ◽  
Author(s):  
Koichiro Fukuda ◽  
Toru Asaka ◽  
Masahiro Okino ◽  
Abid Berghout ◽  
Emilie Béchade ◽  
...  
Keyword(s):  
Ion Conduction ◽  
Oxide Ion Conduction ◽  
Lanthanum Silicate ◽  
Oxide Ion ◽  
Apatite Type
Sign in / Sign up

Export Citation Format

Share Document