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http://hdl.handle.net/1942/29656
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DC Field | Value | Language |
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dc.contributor.author | Kirsanova, Maria A. | - |
dc.contributor.author | DE SLOOVERE, Dries | - |
dc.contributor.author | Karakulina, Olesia M. | - |
dc.contributor.author | Hadermann, Joke | - |
dc.contributor.author | VAN BAEL, Marlies | - |
dc.contributor.author | HARDY, An | - |
dc.contributor.author | Abakumov, Artem M. | - |
dc.date.accessioned | 2019-10-03T07:25:10Z | - |
dc.date.available | 2019-10-03T07:25:10Z | - |
dc.date.issued | 2019 | - |
dc.identifier.citation | JOURNAL OF SOLID STATE CHEMISTRY, 277, p. 804-810 | - |
dc.identifier.issn | 0022-4596 | - |
dc.identifier.uri | http://hdl.handle.net/1942/29656 | - |
dc.description.abstract | In polyanion cathodes, the inductive effect alters the potential of a M(n+1)+/Mn+ redox couple (M − transition metal) according to the electronegativity of the X cation in the polyanion groups (XO4m+). To manipulate the operating potential, we synthesized a series of mixed sulfate-selenate alluaudites, with structure formulas Na2+2zMn2-z(SO4)3−x(SeO4)x and Na2.81Ni1.60(SO4)1.43(SeO4)1.57. Their crystal structure was determined from powder X-ray diffraction data, revealing that the Mn-based alluaudites form solid solutions with the same crystal structure for x = 0.75; 1.125 and 1.5. Na2.81Ni1.60(SO4)1.43(SeO4)1.57 is isostructural to the Mn-based alluaudites. Although the Na2+2zMn2-z(SO4)3−x(SeO4)x compound with the highest selenium content demonstrates a reversible discharge capacity of 60 mAh g−1, only a small part of this electrochemical activity can be ascribed to the Mn3+/Mn2+ redox couple. The redox potential of the Mn3+/Mn2+ pair in Na2+2zMn2−z(SO4)3−x(SeO4)x decreases with increasing values of x, in agreement with the lower electronegativity of Se compared to that of S. | - |
dc.description.sponsorship | The Russian Foundation for Basic Research (grant 17-03-00370); FWO (project No. G040116) | - |
dc.language.iso | en | - |
dc.rights | 2019 Elsevier Inc. All rights reserved. | - |
dc.subject.other | Crystal structure; Inductive effect; Polyanion compounds; Na-ion cathode materials | - |
dc.title | Toward unlocking the Mn3+/Mn2+ redox pair in alluaudite-type Na2+2zMn2−z(SO4)3−x(SeO4)x cathodes for sodium-ion batteries | - |
dc.type | Journal Contribution | - |
dc.identifier.epage | 810 | - |
dc.identifier.spage | 804 | - |
dc.identifier.volume | 277 | - |
local.bibliographicCitation.jcat | A1 | - |
local.type.refereed | Refereed | - |
local.type.specified | Article | - |
dc.identifier.doi | 10.1016/j.jssc.2019.07.032 | - |
dc.identifier.isi | 000481726300103 | - |
item.contributor | Kirsanova, Maria A. | - |
item.contributor | DE SLOOVERE, Dries | - |
item.contributor | Karakulina, Olesia M. | - |
item.contributor | Hadermann, Joke | - |
item.contributor | VAN BAEL, Marlies | - |
item.contributor | HARDY, An | - |
item.contributor | Abakumov, Artem M. | - |
item.fullcitation | Kirsanova, Maria A.; DE SLOOVERE, Dries; Karakulina, Olesia M.; Hadermann, Joke; VAN BAEL, Marlies; HARDY, An & Abakumov, Artem M. (2019) Toward unlocking the Mn3+/Mn2+ redox pair in alluaudite-type Na2+2zMn2−z(SO4)3−x(SeO4)x cathodes for sodium-ion batteries. In: JOURNAL OF SOLID STATE CHEMISTRY, 277, p. 804-810. | - |
item.accessRights | Open Access | - |
item.fulltext | With Fulltext | - |
item.validation | ecoom 2020 | - |
crisitem.journal.issn | 0022-4596 | - |
crisitem.journal.eissn | 1095-726X | - |
Appears in Collections: | Research publications |
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1-s2.0-S0022459619303664-main (1).pdf Restricted Access | Published version | 1.11 MB | Adobe PDF | View/Open Request a copy |
JSSC-19-809 (3)-5-26.pdf | Peer-reviewed author version | 1.38 MB | Adobe PDF | View/Open |
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