Ionic Transport in Doped Solid Electrolytes by Means of DFT Modeling and ML Approaches: A Case Study of Ti-Doped KFeO2
Roman Eremin
1, 2
,
Pavel N. Zolotarev
1, 2
,
Andrey A. Golov
1, 2
,
Nadezhda A Nekrasova
1, 2
,
T. Leisegang
2, 3
Тип публикации: Journal Article
Дата публикации: 2019-11-18
scimago Q1
wos Q3
БС1
SJR: 0.914
CiteScore: 6.2
Impact factor: 3.2
ISSN: 19327447, 19327455
Surfaces, Coatings and Films
Electronic, Optical and Magnetic Materials
Physical and Theoretical Chemistry
General Energy
Краткое описание
We present a comprehensive study on the influence of Ti doping on K+ migration in the K1–xFe1–xTixO2 solid electrolyte. A novel approach is proposed which is based on modeling of configurational spaces (CSs) and full sets of inequivalent migration pathways by means of density functional theory (DFT) calculations and machine learning (ML) techniques. A 2 × 1 × 1 supercell (32 formula units) of a low-temperature polymorph of the KFeO2 compound with space group symmetry Pbca was used. For the three lowest Ti contents (x = 0.03, 0.06, and 0.09), all symmetrically inequivalent configurations of atomic arrangements (CSs) and K+ migration pathways (total numbers: 128, 59520, and 8630400) were generated. With the DFT-derived energetics of K+ migration at the lowest doping level (x = 0.03), the ML models were trained to predict ionic transport properties by using geometrical descriptors for the pathway-dopant arrangement. The trained ML models were then used to evaluate the K+ migration properties for pathways at ...
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Eremin R. et al. Ionic Transport in Doped Solid Electrolytes by Means of DFT Modeling and ML Approaches: A Case Study of Ti-Doped KFeO2 // Journal of Physical Chemistry C. 2019. Vol. 123. No. 49. pp. 29533-29542.
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Eremin R., Zolotarev P. N., Golov A. A., Nekrasova N. A., Leisegang T. Ionic Transport in Doped Solid Electrolytes by Means of DFT Modeling and ML Approaches: A Case Study of Ti-Doped KFeO2 // Journal of Physical Chemistry C. 2019. Vol. 123. No. 49. pp. 29533-29542.
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TY - JOUR
DO - 10.1021/acs.jpcc.9b07535
UR - https://doi.org/10.1021/acs.jpcc.9b07535
TI - Ionic Transport in Doped Solid Electrolytes by Means of DFT Modeling and ML Approaches: A Case Study of Ti-Doped KFeO2
T2 - Journal of Physical Chemistry C
AU - Eremin, Roman
AU - Zolotarev, Pavel N.
AU - Golov, Andrey A.
AU - Nekrasova, Nadezhda A
AU - Leisegang, T.
PY - 2019
DA - 2019/11/18
PB - American Chemical Society (ACS)
SP - 29533-29542
IS - 49
VL - 123
SN - 1932-7447
SN - 1932-7455
ER -
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@article{2019_Eremin,
author = {Roman Eremin and Pavel N. Zolotarev and Andrey A. Golov and Nadezhda A Nekrasova and T. Leisegang},
title = {Ionic Transport in Doped Solid Electrolytes by Means of DFT Modeling and ML Approaches: A Case Study of Ti-Doped KFeO2},
journal = {Journal of Physical Chemistry C},
year = {2019},
volume = {123},
publisher = {American Chemical Society (ACS)},
month = {nov},
url = {https://doi.org/10.1021/acs.jpcc.9b07535},
number = {49},
pages = {29533--29542},
doi = {10.1021/acs.jpcc.9b07535}
}
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Eremin, Roman, et al. “Ionic Transport in Doped Solid Electrolytes by Means of DFT Modeling and ML Approaches: A Case Study of Ti-Doped KFeO2.” Journal of Physical Chemistry C, vol. 123, no. 49, Nov. 2019, pp. 29533-29542. https://doi.org/10.1021/acs.jpcc.9b07535.
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