Influence of Oxygen Nonstoichiometry on the Spectral Properties of Solid Solutions LaNb2−2xTa2xVO9−δ (x=0–0.4) and LaTa2−2xNb2xVO9−δ (x=0–0.1)

2002 ◽  
Vol 167 (1) ◽  
pp. 73-79 ◽  
Author(s):  
M.G. Zuev ◽  
E.V. Arkhipova ◽  
L.A. Perelyaeva ◽  
L.V. Zolotukhina ◽  
O.B. Lapina ◽  
...  
Keyword(s):  
Solid Solutions ◽  
Spectral Properties ◽  
Oxygen Nonstoichiometry

Oxygen nonstoichiometry and electrical conductivity of the solid solutions La2−xSrxNiOy (0≤x≤0.5)

1998 ◽  
Vol 110 (3-4) ◽  
pp. 245-253 ◽  
Author(s):  
V.V Vashook ◽  
S.P Tolochko ◽  
I.I Yushkevich ◽  
L.V Makhnach ◽  
I.F Kononyuk ◽  
...  
Keyword(s):  
Electrical Conductivity ◽  
Solid Solutions ◽  
Oxygen Nonstoichiometry

Homogeneity range, oxygen nonstoichiometry, thermal expansion and transport properties of La2−xSrxNi1−yFeyO4+δ

RSC Advances ◽  
2016 ◽  
Vol 6 (77) ◽  
pp. 72905-72917 ◽  
Author(s):  
A. R. Gilev ◽  
E. A. Kiselev ◽  
V. A. Cherepanov
Keyword(s):  
Thermal Expansion ◽  
Transport Properties ◽  
Solid Solutions ◽  
Homogeneity Range ◽  
Oxygen Nonstoichiometry ◽  
Phase Boundaries

Phase boundaries of tetragonal La2−xSrxNi1−yFeyO4+δ solid solutions (sp.gr. I4/mmm) prepared via the decomposition of citrate–nitrate precursors, followed by multiple annealing treatments at 1100 °C in air and quenched to RT.

Mössbauer Spectral Properties of Yttrium Iron Garnet, Y3Fe5O12, and Its Isovalent and Nonisovalent Yttrium-Substituted Solid Solutions

2016 ◽  
Vol 55 (7) ◽  
pp. 3413-3418 ◽  
Author(s):  
Gary J. Long ◽  
Fernande Grandjean ◽  
Xiaofeng Guo ◽  
Alexandra Navrotsky ◽  
Ravi K. Kukkadapu
Keyword(s):  
Solid Solutions ◽  
Spectral Properties ◽  
Yttrium Iron Garnet ◽  
Yttrium Iron ◽  
Iron Garnet

Oxygen nonstoichiometry and defect chemistry of perovskite-structured SrFe1−xMoxO3−δ solid solutions

2016 ◽  
Vol 292 ◽  
pp. 116-121 ◽  
Author(s):  
O.V. Merkulov ◽  
E.N. Naumovich ◽  
M.V. Patrakeev ◽  
A.A. Markov ◽  
Henny J.M. Bouwmeester ◽  
...  
Keyword(s):  
Solid Solutions ◽  
Defect Chemistry ◽  
Oxygen Nonstoichiometry

scholarly journals Structural, magnetic, electronic, and dilatation properties of the ordered solid solutions Ln0.2Sr0.8CoO3-δ (Ln = Sm, Gd, Dy) with the same oxygen nonstoichiometry index δ

2020 ◽  
Vol 830 ◽  
pp. 154629
Author(s):  
V.A. Dudnikov ◽  
Yu.S. Orlov ◽  
M.V. Bushinsky ◽  
L.A. Solovyov ◽  
S.N. Vereshchagin ◽  
...  
Keyword(s):  
Solid Solutions ◽  
Oxygen Nonstoichiometry

Oxygen Nonstoichiometry and Defect Chemistry of Perovskite-Structured BaxSr1–xTi1–yFeyO3–y/2+δ Solid Solutions

2013 ◽  
Vol 25 (15) ◽  
pp. 2970-2975 ◽  
Author(s):  
Melanie Kuhn ◽  
Jae Jin Kim ◽  
Sean R. Bishop ◽  
Harry L. Tuller
Keyword(s):  
Solid Solutions ◽  
Defect Chemistry ◽  
Oxygen Nonstoichiometry

Synthesis and Characterization of the LiMnP1–xVxO4–δ Solid Solutions

2010 ◽  
Vol 65 ◽  
pp. 269-274 ◽  
Author(s):  
Dina G. Kellerman ◽  
Natalya Mukhina ◽  
Vadim Gorshkov ◽  
Boris Tsarev ◽  
Nikolai Zhuravlev ◽  
...  
Keyword(s):  
Solid Solutions ◽  
Lithium Iron Phosphate ◽  
Electronic Conductivity ◽  
Lithium Ion ◽  
Local Environment ◽  
Oxygen Nonstoichiometry ◽  
Partial Replacement ◽  
Anion Sublattice ◽  
Power Sources ◽  
Synthesis Conditions

Compounds with the olivine-type structures are considered as perspective materials for lithium-ion power sources for both industrial and transport applications. Lithium iron phosphate is most highly developed from this family, but LiMnPO4 is supposed as much promising, due to its higher EMF vs. lithium. One of the main lacks of this class of materials is the low electronic conductivity. The traditional ways of conductivity increase by partial replacement of Mn with other transition metal for LiMnPO4 do not result to essential success. Our approach consisting in the influence onto anion sublattice results to better effect. Such solid solutions should be suitable for oxygen nonstoichiometry creation in virtue of ability of vanadium ion for oxidation degree downturn. Using magnetic methods, we succeeded to show that the required solid solutions are really formed. The optimal synthesis conditions of LiMnP1-xVxO4-δ solid solutions were determined. It was shown, that the doping of LiMnPO4 by vanadium jointly with oxygen nonstoichiometry brings to substantial enhance of electronic conductivity in this material. Observed peculiarities of the magnetic properties indicate the restructuring in the local environment in anion sublattice.

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