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1.
Инвентарный номер: нет.
   
   M 76


   
    Mixed conductivity, thermochemical expansion and electrochemical activity of Fe-substituted (La,Sr)(Cr,Mg)O3-δ for solid oxide fuel cell anodes / A. A. Yaremchenko, V. V. Kharton, V. A. Kolotygin, M. V. Patrakeev, E. V. Tsipis, J. C. Waerenborgh // Journal of Power Sources. - 2014. - Vol. 249. - P483-496
ББК 54
Рубрики: ХИМИЧЕСКИЕ НАУКИ
Кл.слова (ненормированные):
ПОЛЯРИЗАЦИЯ -- ХРОМИТ ЛАНТАНА -- НЕСТЕХИОМЕТРИЯ -- ТОТЭ

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2.
Инвентарный номер: нет.
   
   C 91


   
    Crystal structure, morphotropic phase transition and luminescence in the new cyclosilicates Sr3R2(Si3O9)2, R=Y, Eu–Lu / A. P. Tyutyunnik, I. A. Leonidov, L. L. Surat, I. F. Berger, V. G. Zubkov // Journal of Solid State Chemistry. - 2013. - Vol. 197. - P447-455 : il. - Bibliogr. : p. 454-455 (71 ref.)
ББК 54
Рубрики: ХИМИЧЕСКИЕ НАУКИ
Кл.слова (ненормированные):
РЕНТГЕНОВСКАЯ ДИФРАКЦИЯ -- СИЛИКАТЫ -- ЛЮМИНЕСЦЕНЦИЯ
Аннотация: A new series of promising luminescent materials, cyclosilicates Sr3R2(Si3O9)2, R=Y, Eu–Lu, has been synthesized via a solid-state reaction. X-ray and neutron powder diffraction studies show that these oxides crystallize in the monoclinic crystal system (S.G. C2/c, Z=4) and have a morphotropic phase transition between Er and Tm compounds followed by a step-like change of the unit cell constants. Isolated [Si3O9] rings located in layers are basic building units and stack with Sr/R layers along the [1 0 ] direction. The rare earth atoms are distributed among three independent Sr/R sites coordinated by 8, 7 and 6 oxygen atoms, and the Sr-R populations change from mixed to 0.5/0.5 over site (1) and full occupation of sites (2) and (3) by Sr and R, respectively, at the transition. Changes of the conformation and mutual arrangement of [Si3O9] rings, as well as exchange of oxygen atoms from the first and the second coordination sphere of two Sr/R sites also feature the phase transition. Luminescence in Sr3Y2(Si3O9)2:Eu3+ under ultraviolet (UV) excitation has been discussed

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3.
Инвентарный номер: нет.
   
   Г 96


    Гусев, А. И.
    Сверхструктуры Ti2O5 кубического монооксида титана / А. И. Гусев // Журнал экспериментальной и теоретической физики. - 2013. - Т. 144, № 2. - С. 340-357 : ил. - Библиогр.: с. 356-357 (40 назв.)
ББК 54
Рубрики: ХИМИЧЕСКИЕ НАУКИ
Кл.слова (ненормированные):
МОНООКСИД ТИТАНА -- НЕСТЕХИОМЕТРИЯ
Аннотация: A cubic model is proposed for the Ti5O5 (Ti5 O5 ≡ Ti90 18O90 18) superstructure of nonsto ichiometric titanium monoxide TixOz with double imperfection. The unit cell of the cubic Ti5O5 superstruc ture has the threefold lattice parameter of the unit cell of the basis disordered B1 structure of TixOz monoxide and belongs to space group Pm m. The channel of the disorder–order transition, i.e., TixOz (space groupFm m)–Ti5O5 (space group Pm m), includes 75 superstructure vectors of seven stars {k10}, {k7}, {k6(1)}, {k6(2)}, {k4(1)}, {k4(2)}, and {k1}. The distribution functions of Ti and O atoms over the sites of the cubic Ti5O5 superstructure are calculated. A comparison of the X ray and electron diffraction data obtained for ordered TiO1.087 monoxide with the theoretical simulation results supports the existence of the cubic Ti5O5 super structure. The cubic (space group Pm m) Ti5O5 superstructure is shown to be a high temperature structure relative to the well known monoclinic (space group C2/m) superstructure of the same type

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4.
Инвентарный номер: нет.
   
   S 98


   
    Synthesis, Crystal and Electronic Structures, and Thermodynamic Characteristics of BaCe1 – xInxO3 – x/2 Solid Solutions / T. I. Chupakhina, N. I. Matskevich, G. V. Bazuev, N. A. Ovechkina, V. R. Galakhov, M. Raeckers, M. Neumann // Russian Journal of Inorganic Chemistry. - 2010. - Vol. 55, № 7. - P1002-1009 : il. - Bibliogr. : p. 1008-1009 (37 ref.)
ББК 54
Рубрики: ХИМИЧЕСКИЕ НАУКИ
Кл.слова (ненормированные):
ПЕРОВСКИТЫ -- ТВЕРДЫЕ РАСТВОРЫ -- ОКСИД ЦЕРИЯ
Аннотация: New perovskite oxide phases BaCe1 – xInxO3 – x/2 (x = 0.1–0.8) (space group Pbnm) have been synthesized. The unit cell volume of the resulting solid solutions monotonically decreases with an increase in the degree of substitution of indium for cerium due to the contraction of octahedra in perovskite blocks. The thermodynamic stability of the compound BaCe0.75In0.25O2.875 was studied by the solution calorimetry method, and barium cerates were shown to be thermodynamically stable with respect to binary oxides at room temperature. The structure of occupied and vacant states in BaCe1 – xInxO3 – x/2 was determined on the basis of X ray emission, absorption, and photoelectron spectra, and the energy gap was estimated at ~2 eV

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5.
Инвентарный номер: нет.
   
   S 98


   
    Synthesis, Structure, and Properties of V2O3(XO4)2 (X = S, Se) / A. P. Tyutyunnik, V. N. Krasil'nikov, V. G. Zubkov, L. A. Perelyaeva, I. V. Baklanova // Russian Journal of Inorganic Chemistry. - 2010. - Vol. 55, № 4. - P501-507 : il. - Bibliogr. : p. 507 (14 ref.)
ББК 54
Рубрики: ХИМИЧЕСКИЕ НАУКИ
Кл.слова (ненормированные):
ОКСИД ВАНАДИЯ -- СУЛЬФАТ ВАНАДИЯ
Аннотация: Compounds described as V2O3(XO4)2, where X = S or Se, were prepared from vanadium(V) oxide mixtures with concentrated sulfuric and selenic acids. The physicochemical properties of the products were studied; for V2O3(SeO4)2, the crystal structure was determined by powder X ray diffraction and neutron diffraction, and its key differences from the structure of V2O3(SO4)2 were identified. V2O3(SeO4)2 crystallizes in the monoclinic system with the unit cell parameters a = 15.3831(2) Å, b = 5.54096(5) Å, c = 9.71644(7) Å, β =111.886(1)°, V = 768.51 Å3, space group C2/c

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6.
Инвентарный номер: нет.
   
   S 98


   
    Synthesis and Physicochemical Study of M4Na2V10O28 · 10H2O (M = K, Rb, NH4) / V. N. Krasil'nikov, A. P. Shtin, L. A. Perelyaeva, I. V. Baklanova, A. P. Tyutyunnik, V. G. Zubkov // Russian Journal of Inorganic Chemistry. - 2010. - Vol. 55, № 2. - P162-166 : il. - Bibliogr. : p. 166 (6 ref.)
ББК 54
Рубрики: ХИМИЧЕСКИЕ НАУКИ
Кл.слова (ненормированные):
ДЕКАВАНАДАТЫ ДВОЙНЫЕ -- КРИСТАЛЛИЗАЦИЯ
Аннотация: The formation conditions and physicochemical properties of binary decavanadates M4Na2V10O28 · 10H2O (M = K, Rb, NH4), synthesized by crystallization from saturated solutions of the NaVO3–MH2AsO4–H2O systems, were studied by chemical analysis, X-ray powder diffraction, microscopy, thermogravimetry, and IR spectroscopy. To optimize the synthesis conditions of M4Na2V10O28 · 10H2O, the (1 – x)NaVO3 · 2H2O · xMH2AsO4–H2O (0.2 ≤ x ≤ 0.8) isomolar series method was applied to studying the interaction in the NaVO3–MH2AsO4–H2O systems (M = K, Rb, Cs) at the 0.4 mol/L total molar concentration of NaVO3 and MH2AsO4 in solutions. The studied M4Na2V10O28 · 10H2O compounds were shown to be isostructural with triclinic crystals (Z = 1, space group P ), and their unit cell parameters were estimated

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7.
Инвентарный номер: нет.
   
   S 98


   
    Synthesis, Structure, and Properties of M3VO2(SO4)2 (M = Rb, Cs) / V. N. Krasil'nikov, A. P. Tyutyunnik, V. G. Zubkov, I. F. Berger, L. A. Perelyaeva, I. V. Baklanova // Russian Journal of Inorganic Chemistry. - 2010. - Vol. 55, № 9. - P1331-1338 : il. - Bibliogr. : p. 1338 (27 ref.)
ББК 54
Рубрики: ХИМИЧЕСКИЕ НАУКИ
Кл.слова (ненормированные):
ВАНАДИЙ ПЯТИВАЛЕНТНЫЙ -- КАТАЛИЗАТОРЫ
Аннотация: Vanadium(V) complexes of general composition M3VO2(SO4)2 (M = Rb, Cs) were synthesized by a solid state route. The individuality of the synthesized compounds was proved by X ray and neutron diffraction, vibrational spectroscopy, and microscopic analysis. The X-ray diffraction patterns of M3VO2(SO4)2 were indexed to fit the monoclinic system (space group P2/c, Z = 4) with the following unit cell parameters: a =11.6487(2) Å, b = 8.4469(2) Å, c = 12.1110(2) Å, β = 109.483(1)°, V = 1123.43 Å3 (Rb); a = 12.0546(3) Å, b = 8.7706(2) Å, c = 12.6496(3) Å, β = 109.843(2)°, V = 1257.99 Å3 (Cs). In the crystal structure of M3VO2(SO4)2, [VO2(SO4)2]3– complex anions can be discerned in which the vanadium atom is surrounded by five oxygen atoms: two oxygen atoms form short terminal V–O bonds, and three oxygen atoms are from the two sulfato groups, one of which acts as a monodentate ligand and the other acts as a bidentate chelating ligand

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8.
Инвентарный номер: нет.
   
   S 53


    Shaikhlislamova, A. R.
    Li+/H+ Ion Exchange in Li3 – 2xNbxM2 – x(PO4)3 (M = In, Fe) Materials with a NASICON Structure / A. R. Shaikhlislamova, N. A. Zhuravlev, A. B. Yaroslavtsev // Russian Journal of Inorganic Chemistry. - 2010. - Vol. 55, № 1. - P18-22 : il. - Bibliogr. : p. 22 (13 ref.)
ББК 54
Рубрики: ХИМИЧЕСКИЕ НАУКИ
Кл.слова (ненормированные):
ИОННЫЙ ОБМЕН -- ПРОТОННАЯ ПРОВОДИМОСТЬ
Аннотация: H3 – 2xNbxM2 – x(PO4)3 (M = In, Fe) acid phosphates have been obtained by ion exchange from their lithium forms and X ray powder diffraction, impedance measurements, and 7Li and 1H NMR spectroscopy. The parameters of the hexagonal unit cell of the proton exchanged forms differ only slightly from those of the initial lithium compounds. According to 1H NMR data, the proton in the acid phosphates is not hydrated. The conductivity of the acid phosphates at high temperatures depends weakly on their composition and is ~1.7 × 10–7 S cm–1 at 620 K. The activation energy of conduction is 30–33 kJ/mol (430–770 K)

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9.
Инвентарный номер: нет.
   
   B 33


    Bazuev, G. V.
    Magnetic Properties of Er2Mn2/3Re4/3O7, a New Zirkelite-Structure Oxide / G. V. Bazuev, T. I. Chupakhina // Inorganic Materials. - 2009. - Vol. 45, № 4. - P. 409-413 : il. - Bibliogr. : p. 412-413 (19 ref.)
ББК 54
Рубрики: ХИМИЧЕСКИЕ НАУКИ
Кл.слова (ненормированные):
СВОЙСТВА МАГНИТНЫЕ -- ОКСИДЫ -- РЕДКОЗЕМЕЛЬНЫЕ МЕТАЛЛЫ
Аннотация: We have studied the magnetic properties of the new compound Er2Mn2/3Re4/3O7 prepared by reacting Er3ReO8, ReO2, MnO, and metallic Re at 1020°C in silica tubes sealed off under vacuum. The compound is shown to have the zirkelite structure with hexagonal cell parameters a = 7.3174(6) Å and c = 17.365(1) Å (sp. gr.P31211, Z = 6). Magnetization data obtained in the range 2–300 K demonstrate that, above ~150 K, its magnetic susceptibility exhibits Curie–Weiss behavior with an effective magnetic moment of 9.50μB. Dynamic magnetic susceptibility measurements point to spin-glass behavior of this compound at low temperatures

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10.
Инвентарный номер: нет.
   
   C 91


   
    Crystal Structures of La1-xSr2+x(GeO4)(V1-xMoxO4) (x=0-0.4) Solid Solutions / V. D. Zhuravlev, V. G. Zubkov, A. P. Tyutyunnik, Yu. A. Velikodnyi, N. D. Koryakin // Russian Journal of Inorganic Chemistry. - 2009. - Vol. 54, № 1. - P134-136 : il. - Bibliogr. : p. 136 (11 ref.)
ББК 54
Рубрики: ХИМИЧЕСКИЕ НАУКИ
Кл.слова (ненормированные):
ОРТОВАНАДАТ ЛАНТАНА -- ТВЕРДЫЕ РАСТВОРЫ
Аннотация: The phase compositions of theLaVO4–SrMoO4(1) and Sr2GeO4–SrMoO4(2) binary systems, which bound the Sr2GeO4–LaVO4–SrMoO4(3) ternary system, and the LaSr2(VO4)(GeO4)– Sr2GeO4+SrMoO4 section (4) of system 3 are studied at subsolidus temperatures. Systems 1 and 2 consist of a mixture of the initial compounds, and the La1 –xSr2 + x(GeO4)(V1 – xMoxO4) (where 0 ≤ x ≤ 0.4) region of substitutional solid solutions with a palmierite structure is formed in system 3. The unit cell parameters of the solid solutions are determined. The distribution of the lanthanum and strontium cations over two positions of the cationic sublattice is described

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