Short-range structure of proton-conducting BaM0.10Zr0.90O2.95 (M = Y, In, Sc and Ga) investigated with vibrational spectroscopy
(2010) 14th International Conference on Solid State Protonic Conductors (SSPC-14) 181(3-4). p.126-129- Abstract
- The short-range structures of hydrated and dry samples of the proton-conducting, cubic-structured, acceptor-doped perovskites BaM0.10Zr0.90O2.95 (M=Y, In, Sc and Ga), and, for comparison, BaZrO3, have been investigated using infrared and Raman spectroscopy. The results show that the acceptor-doping leads to local structural distortions of the average cubic structure, most likely related to tilts of (M/Zr)O-6 octahedra, and that the distortions are most pronounced in the Ga-doped material for which we also find additional distortions upon hydration. For the Y-, In- and Sc-doped equivalents the distortions are somewhat weaker and hydration is found to have a reversed, although weak, effect. A comparison of the spectroscopic results to the... (More)
- The short-range structures of hydrated and dry samples of the proton-conducting, cubic-structured, acceptor-doped perovskites BaM0.10Zr0.90O2.95 (M=Y, In, Sc and Ga), and, for comparison, BaZrO3, have been investigated using infrared and Raman spectroscopy. The results show that the acceptor-doping leads to local structural distortions of the average cubic structure, most likely related to tilts of (M/Zr)O-6 octahedra, and that the distortions are most pronounced in the Ga-doped material for which we also find additional distortions upon hydration. For the Y-, In- and Sc-doped equivalents the distortions are somewhat weaker and hydration is found to have a reversed, although weak, effect. A comparison of the spectroscopic results to the reported proton diffusivities of the investigated materials would suggest that the much lower proton diffusivity in the Ga-doped material is associated to its stronger structural distortions. (C) 2009 Elsevier B.V. All rights reserved. (Less)
Please use this url to cite or link to this publication:
https://lup.lub.lu.se/record/1601939
- author
- Karlsson, Maths LU ; Ahmed, Istaq ; Matic, Aleksandar and Eriksson, Sten G.
- organization
- publishing date
- 2010
- type
- Chapter in Book/Report/Conference proceeding
- publication status
- published
- subject
- keywords
- Raman spectroscopy, Proton-conducting, Perovskite, Infrared spectroscopy
- host publication
- Solid State Ionics
- volume
- 181
- issue
- 3-4
- pages
- 126 - 129
- publisher
- Elsevier
- conference name
- 14th International Conference on Solid State Protonic Conductors (SSPC-14)
- conference location
- Kyoto, Japan
- conference dates
- 2008-09-07 - 2008-09-11
- external identifiers
-
- wos:000276706600007
- scopus:77649182337
- ISSN
- 0167-2738
- 1872-7689
- DOI
- 10.1016/j.ssi.2009.03.020
- language
- English
- LU publication?
- yes
- id
- 65286720-6032-411f-96e0-1b8f6d801624 (old id 1601939)
- date added to LUP
- 2016-04-01 10:53:21
- date last changed
- 2024-01-07 03:40:14
@inproceedings{65286720-6032-411f-96e0-1b8f6d801624,
abstract = {{The short-range structures of hydrated and dry samples of the proton-conducting, cubic-structured, acceptor-doped perovskites BaM0.10Zr0.90O2.95 (M=Y, In, Sc and Ga), and, for comparison, BaZrO3, have been investigated using infrared and Raman spectroscopy. The results show that the acceptor-doping leads to local structural distortions of the average cubic structure, most likely related to tilts of (M/Zr)O-6 octahedra, and that the distortions are most pronounced in the Ga-doped material for which we also find additional distortions upon hydration. For the Y-, In- and Sc-doped equivalents the distortions are somewhat weaker and hydration is found to have a reversed, although weak, effect. A comparison of the spectroscopic results to the reported proton diffusivities of the investigated materials would suggest that the much lower proton diffusivity in the Ga-doped material is associated to its stronger structural distortions. (C) 2009 Elsevier B.V. All rights reserved.}},
author = {{Karlsson, Maths and Ahmed, Istaq and Matic, Aleksandar and Eriksson, Sten G.}},
booktitle = {{Solid State Ionics}},
issn = {{0167-2738}},
keywords = {{Raman spectroscopy; Proton-conducting; Perovskite; Infrared spectroscopy}},
language = {{eng}},
number = {{3-4}},
pages = {{126--129}},
publisher = {{Elsevier}},
title = {{Short-range structure of proton-conducting BaM0.10Zr0.90O2.95 (M = Y, In, Sc and Ga) investigated with vibrational spectroscopy}},
url = {{http://dx.doi.org/10.1016/j.ssi.2009.03.020}},
doi = {{10.1016/j.ssi.2009.03.020}},
volume = {{181}},
year = {{2010}},
}