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|Title:||NaFe3(HPO3)2((H,F)PO2OH)6: A Potential Cathode Material and a Novel Ferrimagnet|
Zvereva, E. A.
Volkova, O. S.
Vasiliev, A. N.
Armstrong, A. R.
|Publisher:||American Chemical Society|
|Citation:||NaFe3(HPO3)2((H,F)PO2OH)6: A Potential Cathode Material and a Novel Ferrimagnet / I. Munaò, E. A. Zvereva, O. S. Volkova, et al. — DOI 10.1021/acs.inorgchem.5b02922 // Inorganic Chemistry. — 2016. — Vol. 55. — Iss. 5. — P. 2558-2564.|
|Abstract:||A novel iron fluorophosphite, NaFe3(HPO3)2((H,F)PO2OH)6, was synthesized by a dry low-temperature synthesis route. The phase was shown to be electrochemically active for reversible insertion of Na+ ions, with an average discharge voltage of 2.5 V and an experimental capacity at low rates of up to 90 mAhg-1. Simple synthesis, low-cost materials, excellent capacity retention, and efficiency suggest this class of material is competitive with similar oxyanion-based compounds as a cathode material for Na batteries. The characterization of physical properties by means of magnetization, specific heat, and electron spin resonance measurements confirms the presence of two magnetically nonequivalent Fe3+ sites. The compound orders magnetically at TC 9.4 K into a state with spontaneous magnetization. © 2016 American Chemical Society.|
|Appears in Collections:||Научные публикации, проиндексированные в SCOPUS и WoS CC|
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