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dc.contributor.author
Krumeich, Frank
dc.date.accessioned
2022-02-10T08:33:26Z
dc.date.available
2022-02-01T03:52:35Z
dc.date.available
2022-02-03T07:32:16Z
dc.date.available
2022-02-10T08:33:26Z
dc.date.issued
2022-02-08
dc.identifier.issn
0897-4756
dc.identifier.other
10.1021/acs.chemmater.1c03723
en_US
dc.identifier.uri
http://hdl.handle.net/20.500.11850/530256
dc.description.abstract
Niobium tungsten oxides are currently intensively studied because of their potential use as high-performance anode materials in lithium ion batteries, showing fast ion exchange and high cycling stability. Such properties originate from a varied structural chemistry in the pseudobinary system Nb2O5/WO3, which is based upon multifaceted octahedral frameworks derived from the ReO3 type. Different structure types like the block phases and the tetragonal tungsten bronze derivatives are realized to accommodate oxygen:metal ratios in the range 2.5 <= O/Sigma M <= 3.0 (M = Nb,W). This review starts with an overview about the synthesis of the existing phases and their structures. The building principles of structures occurring in this system are described. In a given phase, the substitution of Nb5+ by equimolar amounts of various tetravalent metals and W6+ gives rise to isostructural solid solution series. The option to oxidize reduced phases at different temperatures introduces further complexity and generates unprecedented structural variants. Possibilities and limitations of X-ray diffraction and various electron microscopy methods for a comprehensive structural characterization of pure phases and less-ordered arrangements are discussed in a historical context. Finally, the outstanding electrochemical performance and thermoelectric properties of niobium tungsten oxides are addressed and perspectives for future applications discussed.
en_US
dc.language.iso
en
en_US
dc.publisher
American Chemical Society
en_US
dc.title
The Complex Crystal Chemistry of Niobium Tungsten Oxides
en_US
dc.type
Review Article
dc.date.published
2022-01-18
ethz.journal.title
Chemistry of Materials
ethz.journal.volume
34
en_US
ethz.journal.issue
3
en_US
ethz.journal.abbreviated
Chem. Mater.
ethz.pages.start
911
en_US
ethz.pages.end
934
en_US
ethz.identifier.wos
ethz.identifier.scopus
ethz.publication.place
Washington, DC
en_US
ethz.publication.status
published
en_US
ethz.date.deposited
2022-02-01T03:53:05Z
ethz.source
WOS
ethz.eth
yes
en_US
ethz.availability
Metadata only
en_US
ethz.rosetta.installDate
2022-02-10T08:33:34Z
ethz.rosetta.lastUpdated
2022-03-29T18:44:45Z
ethz.rosetta.versionExported
true
ethz.COinS
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