Bulletin of the American Physical Society
2023 APS March Meeting
Volume 68, Number 3
Las Vegas, Nevada (March 5-10)
Virtual (March 20-22); Time Zone: Pacific Time
Session K45: Energy - Storage and Conversion at Interfaces
3:00 PM–5:48 PM,
Tuesday, March 7, 2023
Room: Room 315
Sponsoring
Unit:
GERA
Chair: Joseph Dura, National Institute of Standards and Technology
Abstract: K45.00009 : Layered monoclinic perrierite oxo-silicate La4Mn5Si4O22+δ: a new family of interstitial oxide ion conductor*
4:36 PM–4:48 PM
Presenter:
Md Sariful Sheikh
(Department of Materials Science and Engineering, University of Wisconsin Madison, Madison, WI, USA)
Authors:
Md Sariful Sheikh
(Department of Materials Science and Engineering, University of Wisconsin Madison, Madison, WI, USA)
Jun Meng
(Department of Materials Science and Engineering, University of Wisconsin Madison, Madison, WI, USA)
Ryan Jacobs
(Department of Materials Science and Engineering, University of Wisconsin Madison, Madison, WI, USA)
Jian Liu
(DOE National Energy Technology Laboratory, Morgantown, WV, USA)
William O Nachlas
(Department of Geoscience, University of Wisconsin Madison, Madison, WI, USA)
Dane Morgan
(Department of Materials Science and Engineering, University of Wisconsin Madison, Madison, WI, USA.)
In this work we developed an integrated computational and experimental approach to discover new interstitial oxygen diffusers which might show efficient oxygen transport at low temperature. High-throughput computational screening of the 33,975 oxide materials from the Materials Project revealed the easy formation of interstitial oxygen (ab initio predicted formation energy ~ -0.11 eV at 25 oC in air) and high oxide ion diffusivity in a new class of material La4Mn5Si4O22+δ (LMSO), motivating us to synthesize and study its oxide ion transport properties. Electron probe micro-analyser and iodometric titration revealed the presence of the hyper stoichiometric oxygen (δ ~ + 0.5) in LMSO lattice, consistent with the computational results. Electrical conductivity relaxation study also demonstrated promising self-diffusion and surface exchange coefficients of oxygen ion over the temperature range from 600 to 750 oC.
In conclusion, this study introduces layered perrierite LMSO as a new class of interstitial oxide ion conductors and the overall approach may help the rational design of oxide ion conductors-based devices suitable for efficient and stable applications at low temperature.
References:
[1] M. Coduri, M. Karlsson, L. Malavasi, J. Mater. Chem. A 10 (2022) 5082-5110.
[2] S. Xu, R. Jacobs, D. Morgan, Chem. Mater. 30 (2018) 7166-7177.
[3] M. Yashima, et al., Nat. Com. 12 (2021) 556.
*M.S.S., J.M., R.J. and D.M. were supported by the Department of Energy (DOE) Award No. DE-SC0020419.
Follow Us |
Engage
Become an APS Member |
My APS
Renew Membership |
Information for |
About APSThe American Physical Society (APS) is a non-profit membership organization working to advance the knowledge of physics. |
© 2024 American Physical Society
| All rights reserved | Terms of Use
| Contact Us
Headquarters
1 Physics Ellipse, College Park, MD 20740-3844
(301) 209-3200
Editorial Office
100 Motor Pkwy, Suite 110, Hauppauge, NY 11788
(631) 591-4000
Office of Public Affairs
529 14th St NW, Suite 1050, Washington, D.C. 20045-2001
(202) 662-8700