Oxide-ion diffusion in brownmillerite-type Ca2AlMnO5+δ from first-principles calculations

Author(s):  
Ushio Matsumoto ◽  
Akihide Kuwabara ◽  
Craig Andrew James Fisher ◽  
Hiroki Moriwake ◽  
Isao Tanaka

Oxide-ion diffusion pathways in brownmillerite oxides Ca2AlMnO5 and Ca2AlMnO5.5 are systematically investigated using first-principles calculations. These structures reversibly transform into each other by oxidation and reduction. We examine oxide-ion migration...

2018 ◽  
Vol 6 (25) ◽  
pp. 12004-12011 ◽  
Author(s):  
Kazuaki Toyoura ◽  
Yusuke Sakakibara ◽  
Tatsuya Yokoi ◽  
Atsutomo Nakamura ◽  
Katsuyuki Matsunaga

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


2014 ◽  
Vol 16 (42) ◽  
pp. 22974-22978 ◽  
Author(s):  
Jiandong Wu ◽  
Guohua Gao ◽  
Guangming Wu ◽  
Bo Liu ◽  
Huiyu Yang ◽  
...  

The electrochemical and Mg ion diffusion properties of tavorite-Mg0.5FeSO4F were studied by using first principles calculations.


2012 ◽  
Vol 25 (4) ◽  
pp. 618-622 ◽  
Author(s):  
Hiroki Moriwake ◽  
Akihide Kuwabara ◽  
Craig A. J. Fisher ◽  
Rong Huang ◽  
Taro Hitosugi ◽  
...  

2020 ◽  
Vol 357 ◽  
pp. 115484
Author(s):  
A.V. Serdtsev ◽  
D.V. Suetin ◽  
S.F. Solodovnikov ◽  
O.A. Gulyaeva ◽  
N.I. Medvedeva

2018 ◽  
Vol 6 (4) ◽  
pp. 1454-1461 ◽  
Author(s):  
Xin Liu ◽  
Tor Svendsen Bjørheim ◽  
Reidar Haugsrud

We explore formation and stability of defects, and the hydride ion migration mechanisms in K2NiF4-type oxyhydrides by first principles calculations.


2018 ◽  
Vol 20 (33) ◽  
pp. 21685-21692 ◽  
Author(s):  
Zhihong Du ◽  
Zijia Zhang ◽  
Anna Niemczyk ◽  
Anna Olszewska ◽  
Ning Chen ◽  
...  

First principles calculations unveil the effects of A-site substitutions on the interstitial oxygen formation and migration energy in A2−xA′xNiO4+δ.


RSC Advances ◽  
2017 ◽  
Vol 7 (42) ◽  
pp. 26089-26096 ◽  
Author(s):  
Mingzhen Jia ◽  
Hongyan Wang ◽  
Zhandong Sun ◽  
Yuanzheng Chen ◽  
Chunsheng Guo ◽  
...  

In this paper, first principles calculations were performed to investigate the effect of lattice strain on the ionic diffusion and the defect formation in Li2MnSiO4, which are directly related to the rate performance.


Author(s):  
Takeshi Yajima ◽  
Yoyo Hinuma ◽  
Satoshi Hori ◽  
Rui Iwasaki ◽  
Ryoji Kanno ◽  
...  

A combination of single-crystal neutron diffraction experiments at low temperature and first-principles calculations revealed that a correlated migration of the densely packed Li ions governs the overall Li-ion conduction in Li10GeP2S12.


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