Rare Earth Doped Ceria: The Complex Connection Between Structure and Properties
The need for high efficiency energy production, conversion, storage and transport is serving as a robust guide for the development of new materials. Materials with physical-chemical properties matching specific functions in devices are produced by suitably tuning the crystallographic- defect- and mi...
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doaj-1a94d94a630644769c853b2a8dcd48da2020-11-25T00:33:41ZengFrontiers Media S.A.Frontiers in Chemistry2296-26462018-10-01610.3389/fchem.2018.00526419777Rare Earth Doped Ceria: The Complex Connection Between Structure and PropertiesMauro Coduri0Stefano Checchia1Mariangela Longhi2Davide Ceresoli3Marco Scavini4ESRF - The European Synchrotron, Grenoble, FranceESRF - The European Synchrotron, Grenoble, FranceDipartimento di Chimica, Università degli Studi di Milano, Milan, ItalyIstituto di Scienze e Tecnologie Molecolari, CNR, Milan, ItalyDipartimento di Chimica, Università degli Studi di Milano, Milan, ItalyThe need for high efficiency energy production, conversion, storage and transport is serving as a robust guide for the development of new materials. Materials with physical-chemical properties matching specific functions in devices are produced by suitably tuning the crystallographic- defect- and micro-structure of the involved phases. In this review, we discuss the case of Rare Earth doped Ceria. Due to their high oxygen diffusion coefficient at temperatures higher than ~500°C, they are very promising materials for several applications such as electrolytes for Solid Oxide Fuel and Electrolytic Cells (SOFC and SOEC, respectively). Defects are integral part of the conduction process, hence of the final application. As the fluorite structure of ceria is capable of accommodating a high concentration of lattice defects, the characterization and comprehension of such complex and highly defective materials involve expertise spanning from computational chemistry, physical chemistry, catalysis, electrochemistry, microscopy, spectroscopy, and crystallography. Results coming from different experimental and computational techniques will be reviewed, showing that structure determination (at different scale length) plays a pivotal role bridging theoretical calculation and physical properties of these complex materials.https://www.frontiersin.org/article/10.3389/fchem.2018.00526/fullrare earths doped ceriaenergydefects chemistrystructurediffractionmicroscopy |
collection |
DOAJ |
language |
English |
format |
Article |
sources |
DOAJ |
author |
Mauro Coduri Stefano Checchia Mariangela Longhi Davide Ceresoli Marco Scavini |
spellingShingle |
Mauro Coduri Stefano Checchia Mariangela Longhi Davide Ceresoli Marco Scavini Rare Earth Doped Ceria: The Complex Connection Between Structure and Properties Frontiers in Chemistry rare earths doped ceria energy defects chemistry structure diffraction microscopy |
author_facet |
Mauro Coduri Stefano Checchia Mariangela Longhi Davide Ceresoli Marco Scavini |
author_sort |
Mauro Coduri |
title |
Rare Earth Doped Ceria: The Complex Connection Between Structure and Properties |
title_short |
Rare Earth Doped Ceria: The Complex Connection Between Structure and Properties |
title_full |
Rare Earth Doped Ceria: The Complex Connection Between Structure and Properties |
title_fullStr |
Rare Earth Doped Ceria: The Complex Connection Between Structure and Properties |
title_full_unstemmed |
Rare Earth Doped Ceria: The Complex Connection Between Structure and Properties |
title_sort |
rare earth doped ceria: the complex connection between structure and properties |
publisher |
Frontiers Media S.A. |
series |
Frontiers in Chemistry |
issn |
2296-2646 |
publishDate |
2018-10-01 |
description |
The need for high efficiency energy production, conversion, storage and transport is serving as a robust guide for the development of new materials. Materials with physical-chemical properties matching specific functions in devices are produced by suitably tuning the crystallographic- defect- and micro-structure of the involved phases. In this review, we discuss the case of Rare Earth doped Ceria. Due to their high oxygen diffusion coefficient at temperatures higher than ~500°C, they are very promising materials for several applications such as electrolytes for Solid Oxide Fuel and Electrolytic Cells (SOFC and SOEC, respectively). Defects are integral part of the conduction process, hence of the final application. As the fluorite structure of ceria is capable of accommodating a high concentration of lattice defects, the characterization and comprehension of such complex and highly defective materials involve expertise spanning from computational chemistry, physical chemistry, catalysis, electrochemistry, microscopy, spectroscopy, and crystallography. Results coming from different experimental and computational techniques will be reviewed, showing that structure determination (at different scale length) plays a pivotal role bridging theoretical calculation and physical properties of these complex materials. |
topic |
rare earths doped ceria energy defects chemistry structure diffraction microscopy |
url |
https://www.frontiersin.org/article/10.3389/fchem.2018.00526/full |
work_keys_str_mv |
AT maurocoduri rareearthdopedceriathecomplexconnectionbetweenstructureandproperties AT stefanochecchia rareearthdopedceriathecomplexconnectionbetweenstructureandproperties AT mariangelalonghi rareearthdopedceriathecomplexconnectionbetweenstructureandproperties AT davideceresoli rareearthdopedceriathecomplexconnectionbetweenstructureandproperties AT marcoscavini rareearthdopedceriathecomplexconnectionbetweenstructureandproperties |
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