dc.identifier.uri |
http://dx.doi.org/10.15488/2161 |
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dc.identifier.uri |
http://www.repo.uni-hannover.de/handle/123456789/2186 |
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dc.contributor.author |
Dilena, Enrico
|
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dc.contributor.author |
Dorfs, Dirk
|
|
dc.contributor.author |
George, Chandramohan
|
|
dc.contributor.author |
Miszta, Karol
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dc.contributor.author |
Povia, Mauro
|
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dc.contributor.author |
Genovese, Alessandro
|
|
dc.contributor.author |
Casu, Alberto
|
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dc.contributor.author |
Prato, Mirko
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dc.contributor.author |
Manna, Liberato
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dc.date.accessioned |
2017-10-30T13:12:55Z |
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dc.date.available |
2017-10-30T13:12:55Z |
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dc.date.issued |
2012 |
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dc.identifier.citation |
Dilena, E.; Dorfs, D.; George, C.; Miszta, K.; Povia, M. et al.: Colloidal Cu 2-x(S ySe 1-y) alloy nanocrystals with controllable crystal phase: Synthesis, plasmonic properties, cation exchange and electrochemical lithiation. In: Journal of Materials Chemistry 22 (2012), Nr. 26, S. 13023-13031. DOI: https://doi.org/10.1039/c2jm30788j |
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dc.description.abstract |
We report synthetic routes to both cubic and hexagonal phase Cu 2-x(S ySe 1-y) alloy nanocrystals exhibiting a well-defined near-infrared valence band plasmon resonance, the spectral position of which is dependent mainly on x, i.e. on Cu stoichiometry, and to a lesser extent on the crystal phase of the NCs. For cubic Cu 2-x(S ySe 1-y) nanocrystals y could be varied in the 0.4-0.6 range, while for hexagonal nanocrystals y could be varied in the 0.3-0.7 range. Furthermore, the Cu 2-x(S ySe 1-y) nanocrystals could be transformed into the corresponding Cd-based alloy nanocrystals with comparable S ySe 1-y stoichiometry, by cation exchange. The crystal phase of the resulting Cd(S ySe 1-y) nanocrystals was either cubic or hexagonal, depending on the phase of the starting nanocrystals. One sample of cubic Cu 2-x(S ySe 1-y) nanocrystals, with S 0.5Se 0.5 chalcogenide stoichiometry, was then evaluated as the anode material in Li-ion batteries. The nanocrystals were capable of undergoing lithiation/delithiation via a displacement/conversion reaction (Cu to Li and vice versa) in a partially reversible manner. © 2012 The Royal Society of Chemistry. |
eng |
dc.language.iso |
eng |
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dc.publisher |
Cambridge : Royal Society of Chemistry |
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dc.relation.ispartofseries |
Journal of Materials Chemistry 22 (2012), Nr. 26 |
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dc.rights |
Es gilt deutsches Urheberrecht. Das Dokument darf zum eigenen Gebrauch kostenfrei genutzt, aber nicht im Internet bereitgestellt oder an Außenstehende weitergegeben werden. Dieser Beitrag ist aufgrund einer (DFG-geförderten) Allianz- bzw. Nationallizenz frei zugänglich. |
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dc.subject |
Anode material |
eng |
dc.subject |
Cation exchanges |
eng |
dc.subject |
Crystal phase |
eng |
dc.subject |
Electrochemical lithiation |
eng |
dc.subject |
Hexagonal nanocrystals |
eng |
dc.subject |
Hexagonal phase |
eng |
dc.subject |
Li-ion batteries |
eng |
dc.subject |
Lithiation |
eng |
dc.subject |
Near Infrared |
eng |
dc.subject |
Plasmon resonances |
eng |
dc.subject |
Plasmonic properties |
eng |
dc.subject |
Spectral position |
eng |
dc.subject |
Synthetic routes |
eng |
dc.subject |
Anodes |
eng |
dc.subject |
Cadmium alloys |
eng |
dc.subject |
Cadmium compounds |
eng |
dc.subject |
Nanocrystals |
eng |
dc.subject |
Phase change memory |
eng |
dc.subject |
Positive ions |
eng |
dc.subject |
Stoichiometry |
eng |
dc.subject |
Synthesis (chemical) |
eng |
dc.subject |
Nanocrystalline alloys |
eng |
dc.subject.ddc |
540 | Chemie
|
ger |
dc.title |
Colloidal Cu 2-x(S ySe 1-y) alloy nanocrystals with controllable crystal phase: Synthesis, plasmonic properties, cation exchange and electrochemical lithiation |
eng |
dc.type |
Article |
|
dc.type |
Text |
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dc.relation.issn |
0959-9428 |
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dc.relation.doi |
https://doi.org/10.1039/c2jm30788j |
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dc.bibliographicCitation.issue |
26 |
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dc.bibliographicCitation.volume |
22 |
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dc.bibliographicCitation.firstPage |
13023 |
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dc.bibliographicCitation.lastPage |
13031 |
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dc.description.version |
publishedVersion |
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tib.accessRights |
frei zug�nglich |
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