Non-stoichiometry, structure and properties of proton-conducting perovskite oxides

Shuangbin Li; John T. S. Irvine

doi:10.1016/j.ssi.2021.115571

Non-stoichiometry, structure and properties of proton-conducting perovskite oxides

Research output: Contribution to journal › Review article › peer-review

Abstract

The demand for clean and sustainable energy has garnered great interest in new energy materials. Among them, high temperature proton-conducting perovskite oxides are, or can be widely used in clean energy applications (including fuel cells, electrochemical reactors, solid-state separators and supports of catalytic components via various reduction and oxidation reactions) in the intermediate temperature range. The control of defect chemistry is the main strategy to fine tune properties for these applications. This review provides a critical discussion about non-stoichiometry-structure-property relation in terms of structure distortions by intrinsic octahedral titling and extrinsic acceptor doping, chemical stability, hydration behavior, transport properties, and catalytic effects in some typical classes of proton conducting perovskites and perovskite-related derivatives. A good understanding of A-site and B-site non-stoichiometry is also given to allow the perovskite structure with desired properties.

Original language	English
Article number	115571
Journal	Solid State Ionics
Volume	361
Early online date	3 Feb 2021
DOIs	https://doi.org/10.1016/j.ssi.2021.115571
Publication status	Published - Mar 2021

Keywords

Perovskite
Proton conductor
Electrolyte

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10.1016/j.ssi.2021.115571

Li_2021_SSI_Non-stoichiometry_AAM
Copyright © 2021 Elsevier B.V. All rights reserved. This work has been made available online in accordance with publisher policies or with permission. Permission for further reuse of this content should be sought from the publisher or the rights holder. This is the author created accepted manuscript following peer review and may differ slightly from the final published version. The final published version of this work is available at https://doi.org/10.1016/j.ssi.2021.115571
Accepted author manuscript, 2.69 MBLicence: CC BY-NC-ND

Multiscale tuning of interfaces: Multiscale tuning of interfaces and surfaces for energy applications
Irvine, J. T. S. (PI), Cassidy, M. (CoI) & Savaniu, C. D. (CoI)
EPSRC
1/01/17 → 30/06/21
Project: Standard

Cite this

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title = "Non-stoichiometry, structure and properties of proton-conducting perovskite oxides",

abstract = "The demand for clean and sustainable energy has garnered great interest in new energy materials. Among them, high temperature proton-conducting perovskite oxides are, or can be widely used in clean energy applications (including fuel cells, electrochemical reactors, solid-state separators and supports of catalytic components via various reduction and oxidation reactions) in the intermediate temperature range. The control of defect chemistry is the main strategy to fine tune properties for these applications. This review provides a critical discussion about non-stoichiometry-structure-property relation in terms of structure distortions by intrinsic octahedral titling and extrinsic acceptor doping, chemical stability, hydration behavior, transport properties, and catalytic effects in some typical classes of proton conducting perovskites and perovskite-related derivatives. A good understanding of A-site and B-site non-stoichiometry is also given to allow the perovskite structure with desired properties.",

keywords = "Perovskite, Proton conductor, Electrolyte",

author = "Shuangbin Li and Irvine, {John T. S.}",

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doi = "10.1016/j.ssi.2021.115571",

language = "English",

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journal = "Solid State Ionics",

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T1 - Non-stoichiometry, structure and properties of proton-conducting perovskite oxides

AU - Li, Shuangbin

AU - Irvine, John T. S.

N1 - We appreciate that EPSRC-EP/P007821/1 and LERG for funding support.

PY - 2021/3

Y1 - 2021/3

N2 - The demand for clean and sustainable energy has garnered great interest in new energy materials. Among them, high temperature proton-conducting perovskite oxides are, or can be widely used in clean energy applications (including fuel cells, electrochemical reactors, solid-state separators and supports of catalytic components via various reduction and oxidation reactions) in the intermediate temperature range. The control of defect chemistry is the main strategy to fine tune properties for these applications. This review provides a critical discussion about non-stoichiometry-structure-property relation in terms of structure distortions by intrinsic octahedral titling and extrinsic acceptor doping, chemical stability, hydration behavior, transport properties, and catalytic effects in some typical classes of proton conducting perovskites and perovskite-related derivatives. A good understanding of A-site and B-site non-stoichiometry is also given to allow the perovskite structure with desired properties.

AB - The demand for clean and sustainable energy has garnered great interest in new energy materials. Among them, high temperature proton-conducting perovskite oxides are, or can be widely used in clean energy applications (including fuel cells, electrochemical reactors, solid-state separators and supports of catalytic components via various reduction and oxidation reactions) in the intermediate temperature range. The control of defect chemistry is the main strategy to fine tune properties for these applications. This review provides a critical discussion about non-stoichiometry-structure-property relation in terms of structure distortions by intrinsic octahedral titling and extrinsic acceptor doping, chemical stability, hydration behavior, transport properties, and catalytic effects in some typical classes of proton conducting perovskites and perovskite-related derivatives. A good understanding of A-site and B-site non-stoichiometry is also given to allow the perovskite structure with desired properties.

KW - Perovskite

KW - Proton conductor

KW - Electrolyte

U2 - 10.1016/j.ssi.2021.115571

DO - 10.1016/j.ssi.2021.115571

M3 - Review article

SN - 0167-2738

VL - 361

JO - Solid State Ionics

JF - Solid State Ionics

M1 - 115571

ER -

Non-stoichiometry, structure and properties of proton-conducting perovskite oxides

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Multiscale tuning of interfaces: Multiscale tuning of interfaces and surfaces for energy applications

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