Центральная Научная Библиотека УрО РАН

Инвентарный номер: нет.

   B 33

    Bazuev, G. V.
    Synthesis and magnetic properties of incommensurate phases A4CuMn2O9 (A = Ca, Sr) [] = Synthesis and magnetic properties of incommensurate phases A4CuMn2O9 (A = Ca, Sr) / G. V. Bazuev, V. N. Krasil'nikov, D. G. Kellerman // Journal of Alloys and Compounds. - 2003. - V. 352. - С. 190-196. - Bibliogr.: p. 195-196 (26 ref.) . - ISSN 0925-8388

ББК 54
Рубрики: ХИМИЧЕСКИЕ НАУКИ
Кл.слова (ненормированные):
CuO -- MnO2 -- CaMnO3 -- Ca4CuMn2O9 -- ТВЕРДОФАЗНЫЙ СИНТЕЗ -- СИНТЕЗ ТВЕРДОФАЗНЫЙ -- Sr4CuMn2O9 -- Ca4CuMn2O9 -- Cu -- Mn -- МЕДЬ -- МАРГАНЕЦ -- Ca -- Sr -- КАЛЬЦИЙ -- СТРОНЦИЙ -- СЛОЖНЫЕ ОКСИДЫ -- ОКСИДЫ СЛОЖНЫЕ -- МАГНИТНЫЕ СВОЙСТВА -- СВОЙСТВА МАГНИТНЫЕ -- КАРБОНАТЫ -- МАНГАНИТ КАЛЬЦИЯ
Аннотация: New complex oxides A4CuMn2O9 (A = Ca and Sr) belonging to the family of quasi-one-dimensional compounds have been obtained by solid-phase synthesis from Ca and Sr carbonates and oxides CuO and MnO2. It was established that both oxides are incommensurate and can be characterized by two sublattice with the same a, but different c (c1 and c2) parameters. Magnetic susceptibility measurement results were interpreted with allowance for exchange-bound dimers Mn(4+)-Mn(4+) and paramagnetic centers Cu(2+). Magnetic measurements revealed the presence of calcium manganate CaMnO3 in Ca4CuMn2O9

Найти похожие

Инвентарный номер: нет.

   K 81

    Krasil'nikov, V. N.
    Synthesis of fine and nanosized oxide materials, using metal carboxylates and products of their chemical modification by ethylene glycol as precursors [Текст] / V. N. Krasil'nikov, O. I. Gyrdasova, G. V. Bazuev // Izvestiya Rossiiskoi Akademii Nauk, Seriya Fizicheskaya. - 2006. - Vol. 70, № 7. - С. 988-991

ББК 54
Рубрики: ХИМИЧЕСКИЕ НАУКИ

Найти похожие

Инвентарный номер: нет.

   E 27


    Effect of ethylene glycol on the formation of extended crystals of M1/3Co2/3C2O4·2H2O (M = Zn, Mn) oxalates and their thermolysis products [Текст] / O. I. Gyrdasova, V. N. Krasil'nikov, I. G. Grigorov, G. V. Bazuev // Zhurnal Neorganicheskoi Khimii. - 2006. - Vol. 51, № 6. - С. 1020-1026

ББК 54
Рубрики: ХИМИЧЕСКИЕ НАУКИ

Найти похожие

Инвентарный номер: нет.

   S 98


    Synthesis, crystal structure, and vibrational spectra of cesium dioxovanadium(V) sulfate CsVO2SO4 [Текст] / V. G. Zubkov, A. P. Tyutyunnik, V. N. Krasil'nikov, I. F. Berger, L. A. Perelyaeva, I. V. Baklanova, V. G. Bamburov // Doklady Chemistry. - 2007. - Vol. 415, № 1. - С. 172-175. - Библиогр. : с. 175 (9 назв.)

ББК 54
Рубрики: ХИМИЧЕСКИЕ НАУКИ

Полный текст
Найти похожие

Инвентарный номер: нет.

   K 81

    Krasil'nikov, V. N.
    Phase relations in the K2O-V2O5-V2O4-SO3 system in the range of high concentrations of sulfur trioxide [Текст] / V. N. Krasil'nikov, V. G. Bamburov // Doklady Chemistry. - 2007. - Vol. 416, № 2. - С. 247-250. - Библиогр. : с. 250 (15 назв.)

ББК 54
Рубрики: ХИМИЧЕСКИЕ НАУКИ

Полный текст
Найти похожие

Инвентарный номер: нет.

   K 81

    Krasil'nikov, V. N.
    Phase ratios in the K2O-V2O4-SO3 system at high sulfur trioxide concentrations [Текст] / V. N. Krasil'nikov // Zhurnal Neorganicheskoi Khimii. - 2007. - Vol. 52, № 2. - С. 301-305

ББК 54
Рубрики: ХИМИЧЕСКИЕ НАУКИ

Найти похожие

Инвентарный номер: нет.

   K 81

    Krasil'nikov, V. N.
    Loss of activity by vanadium sulfuric acid catalysts under the action of arsenic(III) oxide vapor [Text] / V. N. Krasil'nikov, A. P. Shtin, V. I. Malkiman // Russian Journal of Applied Chemistry. - 2006. - Vol. 79, № 4. - P619-623 : il. - Bibliogr. : p. 623 (12 ref.)

ББК 54
Рубрики: ХИМИЧЕСКИЕ НАУКИ
Кл.слова (ненормированные):
КАТАЛИЗАТОРЫ -- ВАНАДИЕВЫЕ КАТАЛИЗАТОРЫ -- СЕРНАЯ КИСЛОТА -- ОКСИД МЫШЬЯКА
Аннотация: Chemical processes leading to inactivation of vanadium sulfuric acid catalysts by arsenic(III) oxide vapor were studied. The interaction and solubility in the system VO(H2AsO4)2-VOAsO4-H3AsO4 -H2O and the composition of oxovanadium arsenate in a mixed oxidation state, used as a starting substance in synthesis of (VIVO)(VVO)2(As2O7)2, were examined

Полный текст
Найти похожие

Инвентарный номер: нет.

   K 81

    Krasil'nikov, V. N.
    Current range of lecithins used as food additives [Текст] / V. N. Krasil'nikov, E. B. Fedorova, Yu. A. Timoshenko // Pishchevaya Promyshlennost . - 2005. - № 5. - С. 24-27

ББК 54
Рубрики: ХИМИЧЕСКИЕ НАУКИ

Найти похожие

Инвентарный номер: нет.

   S 98


    Synthesis and Study of Photocatalytic Activity of Nanoscale Quasi-One-Dimensional Ti1 – xVxO2 (0 ≤ x ≤ 0.13) and Zn1 – xCoxO (0 ≤ x ≤ 0.3) Oxides / O. I. Gyrdasova, V. N. Krasil'nikov, G. V. Bazuev, L. Yu. Buldakova, M. Yu. Yanchenko // Bulletin of the Russian Academy of Sciences: Physics. - 2009. - Vol. 73, № 8. - P. 1113-1116 : il. - Bibliogr. : p. 1116 (10 ref.)

ББК 54
Рубрики: ХИМИЧЕСКИЕ НАУКИ
Кл.слова (ненормированные):
ФОТОКАТАЛИТИЧЕСКАЯ АКТИВНОСТЬ -- ОКСИВАНАДАТ ТИТАНА -- ОКСИКОБАЛЬТИТ ЦИНКА
Аннотация: A original method of synthesis of quasi one dimensional Ti1 – xVx(OCH2CH2O)2 (0 ≤ x ≤ 0.13) and Zn1 – xCox(HCOO)(HOCH2CH2O) (0 ≤ x ≤ 0.3) has been developed. The synthesis products were used as a basis for nanoscale extended Ti1 – xVxO2 and Zn1 – xCoxO oxides. The compounds obtained and products of their thermolysis were investigated by X ray diffraction, microscopy, IR spectroscopy, thermogravimetry, and chemical analysis; the shape and size of particles were determined by scanning electron microscopy. The good prospects of Ti1 – xVxO2 and Zn1 – xCoxO solid solutions as photocatalysts for hydroquinone oxidation are shown

\\\\Expert2\\nbo\\Bulletin of the Russian Academy of Sciences Physics\\2009, V. 73, N 8, P. 1113-1116.pdf
Найти похожие

10.

Инвентарный номер: нет.

   S 98


    Synthesis, Microstructure, and Photocatalytic Characteristics of Quasi One Dimensional Zinc Oxide Doped with d Elements / O. I. Gyrdasova, V. N. Krasil'nikov, E. V. Shalaeva, L. Yu. Buldakova, M. Yu. Yanchenko, V. G. Bamburov // Doklady Chemistry. - 2010. - Vol. 434, № 1. - P. 211-213 : il. - Bibliogr. : p. 113 (9 ref.)

ББК 54
Рубрики: ХИМИЧЕСКИЕ НАУКИ
Кл.слова (ненормированные):
ФОТОКАТАЛИЗ -- ОКСИД ЦИНКА -- СИНТЕЗ -- МИКРОСТРУКТУРА

Найти похожие

11.

Инвентарный номер: нет.

   T 44


    Thermally Stimulated Transformation of Micellar Tungsten Glycolate into Nanodisperse Tungsten Carbide / E. V. Polyakov, L. G. Maksimova, V. N. Krasil'nikov, V. A. Zhilyaev, T. A. Timoshchuk, O. N. Ermakova, G. P. Shveikin, I. V. Nikolaenko // Doklady Physical Chemistry. - 2010. - vol. 434, № 1. - P. 154-157 : il. - Bibliogr. : p. 157 (14 ref.)

ББК 54
Рубрики: ХИМИЧЕСКИЕ НАУКИ
Кл.слова (ненормированные):
КАРБИД ВОЛЬФРАМА -- ГЛИКОЛЯТ ВОЛЬФРАМА -- ПОРОШКИ НАНОДИСПЕРСНЫЕ

\\\\Expert2\\nbo\\Doklady Physical Chemistry\\2010, V. 434, N 1, p. 154-157.pdf
Найти похожие

12.

Инвентарный номер: нет.

   N 28


    Nature of defects in nanocrystalline zinc oxide with particles of tubular morphology / M. A. Melkozerova, V. N. Krasil'nikov, O. I. Gyrdasova, E. V. Zabolotskaya, E. V. Shalaeva, R. F. Samigullina // Theoretical and Experimental Chemistry. - 2012. - Vol. 48, № 3. - P139-142 : il. - Bibliogr. : p. 142 (14 ref.)

ББК 54
Рубрики: ХИМИЧЕСКИЕ НАУКИ
Кл.слова (ненормированные):
ОКСИД ЦИНКА -- МАТЕРИАЛЫ НАНОРАЗМЕРНЫЕ -- СТРУКТУРА ДЕФЕКТНАЯ -- ЭПР -- ФОТОКАТАЛИЗ
Аннотация: Nanostructured ZnO powders with particles of tubular form were synthesized by a precursor method. A narrow symmetrical line with a g factor of 2.002 was detected in the ESR spectra of the materials. On the basis of analysis of the dependence of the line intensities on the heat treatment conditions it was concluded that the signal belongs to singly charged oxygen vacancies V(+)O

\\\\Expert2\\nbo\\Theoretical and Experimental Chemistry\\2012, V.48, № 3, p.139.pdf
Найти похожие

13.

Инвентарный номер: нет.

   K 81

    Krasil'nikov, V. N.
    Preparation of Thick LaCu1 – xNixO2.5 +delta Films Exhibiting a High-Temperature Metal–Semiconductor Transition / V. N. Krasil'nikov, G. V. Bazuev // Inorganic Materials. - 2002. - Vol. 38, № 10. - P. 1048-1052 : il. - Bibliogr. : p. 1052 (12 ref.)

ББК 54
Рубрики: ХИМИЧЕСКИЕ НАУКИ
Кл.слова (ненормированные):
ОКСИДЫ СЛОЖНЫЕ -- ПЛЕНКИ ТОЛСТЫЕ -- ВЫСОКОТЕМПЕРАТУРНЫЕ СВЕРХПРОВОДНИКИ -- МЕДЬСОДЕРЖАЩИЕ СВЕРХПРОВОДНИКИ
Аннотация: The conditions for producing thick LaCu1- xNixO2.5 +delta films on different substrates were optimized. The effects of the heat-treatment conditions, substrate material, and the nature of the liquid organic binder on the composition, structure, and properties of the films were studied. Single-phase coatings obtained on MgO, ZrO2, BaSO4, and Ni substrates 50 to 200 mm in thickness were close in properties to bulk LaCu1-xNixO2.5 +delta and exhibited a metall–semiconductor transition at about 500°

Полный текст
Найти похожие

14.

Инвентарный номер: нет.

   V 26


    Vanadyl and Titanium Glycolates as Precursors for the Preparation of Oxide Materials in the Form of Elongated Microparticles and Nanoparticles / V. N. Krasil'nikov, A. P. Shtin, O. I. Gyrdasova, I. V. Baklanova, L. A. Perelyaeva // Nanotechnologies in Russia . - 2008. - Vol. 3, № 1-2. - P106-111 : il. - Bibliogr. : p. 110-111 (14 ref.)

ББК 54
Рубрики: ХИМИЧЕСКИЕ НАУКИ
Кл.слова (ненормированные):
ГЛИКОЛЯТ ВАНАДИЛА -- ГЛИКОЛЯТ ТИТАНА -- ОКСИДЫ -- НАНОЧАСТИЦЫ
Аннотация: This paper reports on the results of investigations of the optimum conditions for the formation and properties of vanadyl and titanium glycolates of the compositions VO(OCH2CHO) and Ti(OCH2CH2O)2 with elongated crystals, as well as solid solutions of the composition Ti1–xVx(OCH2CH2O)2(0
Найти похожие

15.

Инвентарный номер: нет.

   E 43


    Electronic Structure and the Optical and Photocatalytic Properties of Anatase Doped with Vanadium and Carbon / V. M. Zainullina, V. P. Zhukov, V. N. Krasil'nikov, M. Yu. Yanchenko, L. Yu. Buldakova, E. V. Polyakov // Physics of the Solid State. - 2010. - vol. 52, № 2. - P271-280 : il. - Bibliogr. : p. 279-280 (45 ref.)

ББК 54
Рубрики: ХИМИЧЕСКИЕ НАУКИ
Кл.слова (ненормированные):
АНАТАЗ -- ВАНАДИЙ -- КАРБОН -- ФОТОКАТАЛИТИЧЕСКИЕ СВОЙСТВА -- ЭЛЕКТРОННАЯ СТРУКТУРА
Аннотация: The electronic structures of undoped anatase and anatase doped with carbon and vanadium have been calculated using the ab initio tight binding linear muffin tin orbital (TB-LMTO) method in the LSDA + U approximation. It has been shown that the doping of TiO2 leads to the formation of narrow bands of the C and V impurity states in the band gap. The calculations of the imaginary part of the dielectric function have made it possible to estimate the intensity of the optical absorption. It has been established that the doping with vanadium and carbon leads to optical absorption in the visible range and to an increase in the absorption in the ultraviolet range up to 4 eV. This should result in an increase in the photocatalytic activity on the surface of the doped anatase. The experimental determination of the photocatalytic activity of whiskers of the anatase doped with carbon and vanadium in the reaction of hydroquinone oxidation has confirmed the increase in the activity of the doped materials under exposure to ultraviolet, visible, and blue light. The phenomenon of dark catalysis in the anatase doped with carbon and vanadium has been interpreted within the concept of low-energy electronic excitations between the impurity levels of carbon

Полный текст
Найти похожие

16.

Инвентарный номер: нет.

   E 27


    Effect of Ethylene Glycol on the Formation of Extended Crystals of M1/3Co2/3C2O4(M = Zn, Mn) Oxalates and Their Thermolysis Products / O. I. Gyrdasova, V. N. Krasil'nikov, I. G. Grigorov, G. V. Bazuev // Russian Journal of Inorganic Chemistry. - 2006. - Vol. 51, № 6. - P949-955 : il. - Bibliogr. : p. 954-955 (19 ref.)

ББК 54
Рубрики: ХИМИЧЕСКИЕ НАУКИ
Кл.слова (ненормированные):
ЭТИЛЕНГЛИКОЛЬ -- ОКСАЛАТЫ -- ТЕРМОЛИЗ -- ЦИНК -- МАРГАНЕЦ
Аннотация: The effect of ethylene glycol (EG) on the formation of whiskers and fibers of complex oxides with the general formula MCo2O4 upon the thermolysis of M1/3Co2/3C2O4(M = Zn, Mn) oxalates has been studied. New compounds (solvates) are formed when powdered oxalates are heated with EG. In the solvates, EG molecules substitute for water molecules according to the reaction M1/3Co2/3C2O4· 2H2O + HOCH2CH2OH =M1/3Co2/3C2O4(HOCH2CH2OH) + 2H2O. The solvates have been characterized using X-ray powder diffraction, microscopy, IR spectroscopy, thermogravimetry, and chemical analysis. The shape, structure, and particle size of the thermolysis products of EG-modified oxalates have been determined using scanning electron microscopy

Полный текст
Найти похожие

17.

Инвентарный номер: нет.

   K 81

    Krasil'nikov, V. N.
    Phase Ratios in the K2O-V2O4-SO3 System at High Sulfur Trioxide Concentrations / V. N. Krasil'nikov // Russian Journal of Inorganic Chemistry. - 2007. - Vol. 52, № 2. - P258-262 : il. - Bibliogr. : p. 262 (15 ref.)

ББК 54
Рубрики: ХИМИЧЕСКИЕ НАУКИ
Кл.слова (ненормированные):
ОКСИДНЫЕ СИСТЕМЫ -- ВАНАДИЕВЫЕ КАТАЛИЗАТОРЫ -- ТРИОКСИД СЕРЫ
Аннотация: Phase ratios in the three-component oxide system K2O–V2O4–SO3 in the region of the sulfur trioxide concentrations corresponding to its concentrations in the active component of vanadium catalysts for SO2 to SO3 conversion have been studied using powder X-ray diffraction, IR spectroscopy, microscopy, and chemical analysis. Four individual compounds (K2VO(SO4)2, K2(VO)2(SO4)3, K2VO(SO4)2S2O7, and K2(VO)2(SO4)2S2O7) and K2(VO)2(SO4)2S2O7 and VOSO4-base solid solutions of composition K2(VO)2 + x(SO4)2 + xS2O7 (0 ≤ x ≤ 1.5) were found in the system. K2VO(SO4)S2O7 and K2(VO)2(SO4)2S2O7 lose their sulfur trioxide when heated above 350°C under an inert atmosphere, and convert to K2VO(SO4)2 and K2(VO)2(SO4)3, respectively. This implies that K2VO(SO4)2S2O7 and K2(VO)2(SO4)2S2O7, as well as K2(VO)2 + x(SO4)2 + xS2O7 solid solution, cannot exist in the active component of real industrial catalysts

Полный текст
Найти похожие

18.

Инвентарный номер: нет.

   K 81

    Krasil'nikov, V. N.
    Phase Ratios in the M2O–V2O5–SO3 (M = Rb, Cs) Systems and the Properties of the Compounds Formed in These Systems / V. N. Krasil'nikov // Russian Journal of Inorganic Chemistry. - 2007. - Vol. 52, № 3. - P419-423 : il. - Bibliogr. : p. 423 (21 ref.)

ББК 54
Рубрики: ХИМИЧЕСКИЕ НАУКИ
Кл.слова (ненормированные):
ОКСИДНЫЕ СИСТЕМЫ -- ПОРОШКОВАЯ ДИФРАКЦИЯ -- ЩЕЛОЧНЫЕ МЕТАЛЛЫ
Аннотация: Powder X-ray diffraction and microscopy have been used to study phase ratios of the M2O–V2O5–SO3 (M = Rb, Cs) systems, which model the active component of rubidium–vanadium and cesium–vanadium catalysts for sulfuric acid production at high sulfur dioxide conversions. We have stated that each system forms four compounds: M3VO2(SO4)2, MVO2SO4, M4V2O3(SO4)4, and MVO(SO4)2. The thermal properties of these compounds and their interaction with water vapor saturated at room temperature have been studied. The unit cell parameters have been determined for the compounds MVO2SO4 (M = K, Rb), MVO(SO4)2, and M[VO2(SO4)(H2O)2] · H2O (M = Rb, Tl). The reciprocal transformations of the components and phases of the M2O–V2O5–SO3 systems match the Lux–Flood ideas of the acid–base properties of oxide compounds

Полный текст
Найти похожие

19.

Инвентарный номер: нет.

   C 91


    Crystal Structure and Spectroscopic Properties A[VO2(SO4)(H2O)2] · H2O (A = K, Rb, Tl, NH4) Compounds / V. G. Zubkov, A. P. Tyutyunnik, I. F. Berger, V. N. Krasil'nikov, L. A. Perelyaeva, I. V. Baklanova // Russian Journal of Inorganic Chemistry. - 2007. - Vol. 52, № 9. - P1415-1423 : il. - Bibliogr. : p. 1422-1423 (18 ref.)

ББК 54
Рубрики: ХИМИЧЕСКИЕ НАУКИ
Кл.слова (ненормированные):
СУЛЬФАТ ВАНАДИЯ -- СПЕКТРОСКОПИЯ
Аннотация: The crystal structure of dioxovanadium(V) sulfate trihydrates A[VO2(SO4)(H2O)2] · H2O, where A is K, Rb, Tl, or NH4, has been determined based on a combination of neutron and X-ray diffraction data. The compounds are isostructural and have a monoclinic lattice (space group P21, Z = 2) with unit cell parameters ‡ = 6.24535(8), 6.26016(7), 6.25817(5), and 6.2500(1) Å; b = 9.8417(1), 9.99736(8), 9.96217(9), and 9.9742(1) Å; c = 6.52113(8), 6.69303(5), 6.70379(6), and 6.70334(9) Å; β = 106.99(1)°, 107.83(1)°, and 107.83(1)°, 107.99(1)°, respectively. The SO4 tetrahedra and VO4(H2O)2 octahedra share an oxygen vertex to form infinite isolated chains. Atoms A have CN = 10. IR and Raman spectroscopy data are reported

Полный текст
Найти похожие

20.

Инвентарный номер: нет.

   C 91


    Crystal Structure and Spectroscopic Properties of AVO2SO4 (A = K, Rb) Compounds / A. P. Tyutyunnik, V. G. Zubkov, I. F. Berger, V. N. Krasil'nikov, L. A. Perelyaeva, I. V. Baklanova // Russian Journal of Inorganic Chemistry. - 2007. - Vol. 52, № 9. - P1424-1429 : il. - Bibliogr. : p. 1429 (20 ref.)

ББК 54
Рубрики: ХИМИЧЕСКИЕ НАУКИ
Кл.слова (ненормированные):
КРИСТАЛЛИЧЕСКАЯ СТРУКТУРА -- ВАНАДАТЫ
Аннотация: The crystal structure of alkali-metal dioxovanadium(V) sulfates AVO2SO4, where A is K or Rb, has been determined based on a combination of neutron and X-ray diffraction data. The compounds are isostructural and have an orthorhombic lattice (space group P212121, Z = 4) with unit cell parameters a = 11.1004(2) and 10.8193(1) Å; b = 8.2626(2) and 8.9042(1) Å; c = 5.4772(1) and 5.5722(1) Å, respectively. The structures are of the chain type. Zigzag chains are formed by vertex-sharing VO6 octahedra. Sulfate groups SO4 link neighboring chains and form a spatial framework with cavities accommodating alkali-metal atoms with CN = 9 (K) and 8 (Rb). IR and Raman spectroscopy data are reported

Полный текст
Найти похожие

21.

Инвентарный номер: нет.

   S 98


    Synthesis and Properties of Titanium Glycolate Ti(OCH2CH2O)2 / V. N. Krasil'nikov, A. P. Shtin, O. I. Gyrdasova, E. V. Polyakov, G. P. Shveikin // Russian Journal of Inorganic Chemistry. - 2008. - Vol. 53, № 7. - P1065-1069 : il. - Bibliogr. : p. 1069 (21 ref.)

ББК 54
Рубрики: ХИМИЧЕСКИЕ НАУКИ
Кл.слова (ненормированные):
ГЛИКОЛЯТ ТИТАНА -- ДИОКСИД ТИТАНА -- НАНОТЕХНОЛОГИИ
Аннотация: A new efficient method for the synthesis of extended micro- and nano-sized crystals (whiskers, fibers) of titanium glycolate Ti(OCH2CH2O)2 has been suggested. The method implies the reaction of hydrated titanium dioxide with ethylene glycol on heating in air. Thermolysis of Ti(OCH2CH2O)2 in air gives titanium dioxide as anatase (400–500°C) and rutile (T> 700°C), the morphology of titanium glycolate crystals being inherited by the oxide. The pseudocrystals of the thermolysis product in an inert gas medium (T=500–950°C) represent aglomeration of nano-sized titanium dioxide particles and amorphous carbon. At temperatures up to 1300°C, the formation of the TiO2–xCx phase with a rutile structure is probable. In a wet air environment, titanium glycolate is partially hydrolyzed to give TiOx(OCH2CH2O)2–2x(OH)2x·xH2O(0≤x≤1) and on keeping in water at room temperature, ethylene glycol is completely displaced from the crystals. This process is also not accompanied by changes in the particle morphology

Полный текст
Найти похожие

22.

Инвентарный номер: нет.

   K 81

    Krasil'nikov, V. N.
    Ethylene Glycol-Modified Cobalt and Iron Oxalates As Precursors for the Synthesis of Oxides As Extended Microsized and Nanosized Objects / V. N. Krasil'nikov, O. I. Gyrdasova, G. V. Bazuev // Russian Journal of Inorganic Chemistry. - 2008. - Vol. 53, № 12. - P1854-1861 : il. - Bibliogr. : p. 1860-1861 (18 ref.)

ББК 54
Рубрики: ХИМИЧЕСКИЕ НАУКИ
Кл.слова (ненормированные):
ЭТИЛЕНГЛИКОЛЬ -- КОБАЛЬТ -- ОКСИДЫ -- ОКСАЛАТ ЖЕЛЕЗА
Аннотация: The reactions of ethylene glycol with iron and cobalt oxalates upon heating in air are reported. Heat treatment of mixtures of oxalate powders with ethylene glycol yields new compounds (solvates) via the replacement of the water molecules in the oxalate structure by ethylene glycol molecules: MC2O4·2H2O+HOCH2CH2OH=MC2O4(HOCH2CH2OH)+2H2O↑. The crystals resulting from this reaction are elongated, and their shape is inherited by their thermolysis products. Thermolysis in air yields microwhiskers and nanowhiskers of Fe2O3and Co3O4, and thermolysis in an inert atmosphere affords Fe3O4and Co whiskers. The thermolysis of FeC2O4(HOCH2CH2OH) in helium yields a new structural modification of FeC2O4 as an intermediate product. The resulting compounds and their thermolysis products were characterized by X-ray powder diffraction, microscopy, IR spectroscopy, and thermogravimetric and chemical analyses. The particle shape and size were determined by scanning electron microscopy

Полный текст
Найти похожие

23.

Инвентарный номер: нет.

   G 99

    Gyrdasova, O. I.
    Synthesis of Micro- and Nanosized Manganese Oxides from Hydrated Manganese Oxalates and Products of Their Chemical Modification with Ethylene Glycol / O. I. Gyrdasova, V. N. Krasil'nikov, G. V. Bazuev // Russian Journal of Inorganic Chemistry. - 2009. - Vol. 54, № 7. - P1035-1040 : il. - Bibliogr. : p. 1040 (9 ref.)

ББК 54
Рубрики: ХИМИЧЕСКИЕ НАУКИ
Кл.слова (ненормированные):
ОКСИД МАРГАНЦА -- ОКСАЛАТЫ -- ЭТИЛЕНГЛИКОЛЬ
Аннотация: The reactions of ethylene glycol with manganese oxalates MnC2O4·2H2O and MnC2O4·3H2O on heating in air were studied. At temperature below 100°C, ethylene glycol was found to displace water from oxalates to give a new solvate compound according to the reaction MnC2O4·nH2O+HOCH2CH2OH=MnC2O4(HOCH2CH2OH) +nH2O↑. The crystals of the solvates retain the morphology of the initial oxalates, which is then inherited by the products of their thermolysis. Thus, thermolysis of MnC2O4·3H2O and MnC2O4(HOCH2CH2OH) having quasi-unidimensional structure gave Mn3O4 and Mn2O3nanowhiskers in air and MnO in an inert gas environment. Heating of MnC2O4·nH2O in ethylene glycol at temperatures above 100°C results in anhydrous manganese oxalate

Полный текст
Найти похожие

24.

Инвентарный номер: нет.

   S 98


    Synthesis and Properties of M2V8O21 (M=K, Tl) Octavanadates and K2-xTlxV8O21 (0 ≤ x ≤ 2) Solid Solutions / V. N. Krasil'nikov, L. A. Perelyaeva, I. V. Baklanova, L. Yu. Buldakova, M. Yu. Yanchenko // Russian Journal of Inorganic Chemistry. - 2009. - Vol. 54, № 10. - P1537-1542 : il. - Bibliogr. : p. 1542 (15 ref.)

ББК 54
Рубрики: ХИМИЧЕСКИЕ НАУКИ
Кл.слова (ненормированные):
ОКТАВАНАДАТЫ -- ТВЕРДЫЕ РАСТВОРЫ
Аннотация: Formation parameters and properties of M2V8O21 octavanadates where M = K and Tl were studied using X-ray powder diffraction, microscopy, thermogravimetry, vibrational spectroscopy, EPR, and voltammetry. Original synthesis processes for these compounds were developed; their thermal stability parameters were determined. Potassium and thallium(I) octavanadates were shown to form complete solid solutions with each other. Potassium octavanadate in air is stable to 450°C; above this temperature, it transforms, on account of partial reduction of vanadium, to vanadium bronze by the reaction K2V8O21<--> K2V8O20.8 + 0.1O2. The K2V8O20.8 percentage in the sample increases with rising temperature. The substitution of small thallium amounts for potassium (x ≥ 0.025) enhances the stability of the phase until it melts at ~525°C.

Полный текст
Найти похожие

25.

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

Полный текст
Найти похожие

26.

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

Полный текст
Найти похожие

27.

Инвентарный номер: нет.

   S 98


    Synthesis and Photocatalytic Activity of Ti[1 – x]VxO[2 – y]Cy Whiskers in Hydroquinone Oxidation in Aqueous Solutions / V. N. Krasil'nikov, A. P. Shtin, O. I. Gyrdasova, E. V. Polyakov, L. Yu. Buldakova, M. Yu. Yanchenko, V. M. Zainullina, V. P. Zhukov // Russian Journal of Inorganic Chemistry. - 2010. - Vol. 55, № 8. - P1184-1191 : il. - Bibliogr. : p. 1190-1191 (28 ref.)

ББК 54
Рубрики: ХИМИЧЕСКИЕ НАУКИ
Кл.слова (ненормированные):
ФОТОКАТАЛИТИЧЕСКАЯ АКТИВНОСТЬ -- ГИДРОХИНОН -- ВАНАДИЙ
Аннотация: Ti1–xVxO2–yCy (0 ≤ x ≤ 0.10 and x = 0.50) whiskers having the anatase structure were synthesized via thermolysis of vanadium doped titanium glycolate of composition Ti1–xVx(OCH2CH2O)2 (0 ≤ x ≤ 0.10 and x = 0.50). The starting reagents used to prepare Ti1–xVx(OCH2CH2O)2 were mixtures of coprecipitated titanium and vanadyl hydroxides, which were heated in ethylene glycol at T ≤ 200°C: (1 – x)TiO(OH)2 + xVO(OH)2 + 2HOCH2CH2OH = Ti1–xVx(OCH2CH2O)2 + 3H2O↑. Thermolysis of vanadium doped titanium glycolate in various gas media over a wide range of temperatures is useful to prepare titania samples doped with both vanadium and carbon to form a phase of the general composition Ti1 – xVxO2 – yCy whiskers prepared by thermolyzing Ti1 – xVx(OCH2CH2O)2 in air at 450°C were found to have a high photocatalytic activity in hydroquinone oxidation in aqueous solutions irradiated in the UV spectral range; the photocatalyst’s activity increases with increasing vanadium concentration. When hydroquinone was irradiated in the blue, the maximal catalytic activity was discovered in a sample of composition Ti0.50V0.50O2–yCy. Quantum chemical calculations support experimental data that the double doping of titania (Ti1–xVxO2–yCy) enhances its photocatalytic activity compared to undoped anatase or anatase doped in one sublattice: Ti1–xVxO2 and TiO2–yCy alytic activity compared to undoped anatase or anatase doped in one sublattice: Ti1–xVxO2 and TiO2–yCy.

Полный текст
Найти похожие

28.

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

Полный текст
Найти похожие

29.

Инвентарный номер: нет.

   O-66


    Optical and photocatalytic properties of quasi-one-dimensional ZnO activated by carbon / O. I. Gyrdasova, V. N. Krasil'nikov, E. V. Shalaeva, I. V. Baklanova, M. A. Melkozerova, L. Y. Buldakova, M. Y. Yanchenko // Mendeleev Communications. - 2014. - Vol. 24, № 3. - P143-144

ББК 54
Рубрики: ХИМИЧЕСКИЕ НАУКИ
Кл.слова (ненормированные):
СВОЙСТВА ОПТИЧЕСКИЕ -- УГЛЕРОД

Найти похожие

30.

Инвентарный номер: нет.

   S 98


    Synthesis, optical properties, and photocatalytic activity of lanthanide-doped anatase / I. V. Baklanova, V. N. Krasil'nikov, V. P. Zhukov, O. I. Gyrdasova, L. A. Perelyaeva, L. Yu. Buldakova, M. Yu. Yanchenko, I. R. Shein // Russian Journal of Inorganic Chemistry. - 2014. - Т. 59, № 2. - С. 29-33

ББК 54
Рубрики: ХИМИЧЕСКИЕ НАУКИ
Кл.слова (ненормированные):
ДОПИРОВАНИЕ -- САМАРИЙ -- НЕОДИМ
Аннотация: Путем нагревания прекурсоров состава Ti1 - xLnx(OCH2CH2O)2 - x/2, где Ln = Nd, Eu, Tb, Er (x = 0.025), Sm (0.005 x 0.025), в воздушной среде синтезированы квазиодномерные (1D) твердые растворы Ti1 - xLnxO2 - x/2 со структурой анатаза. Установлено, что данные твердые растворы проявляют фотокаталитическую активность в реакции окисления гидрохинона в водном растворе при облучении в УФ-диапазоне спектра. Исследованы спектры поглощения Ti1 - xLnxO2 - x/2 (Nd, Sm, Eu, Tb, Er) в УФ- и видимом диапазонах. Проведены расчеты электронного строения и спектров оптического поглощения анатаза, допированного неодимом, самарием и тербием.

Найти похожие

1-30 31-32

Сиглы отделов ЦНБ УрО РАН

  бр.ф. - Бронированный фонд

  бф - Научно-библиографический отдел

  БХЛ - Фонд художественной литературы

  ИИиА -Фонд исторической литературы в ЦНБ УрО РАН

  ИМЕТ -Отдел ЦНБ в Институте металлургии УрО РАН

  кх - Отдел фондов (книгохранениe)

  МБА - Межбиблиотечный абонемент

  мф - Методический фонд

  ок - Отдел научной каталогизации

  оку - Отдел комплектования и учета

  орф - Обменно-резервный фонд

  пф - Читальный зал деловой и патентной информации

  рк - Фонд редкой книги

  ч/з - Главный читальный зал

  эр - Зал электронных ресурсов

Сиглы библиотек институтов и НЦ УрО РАН

© Международная Ассоциация пользователей и разработчиков электронных библиотек и новых информационных технологий
(Ассоциация ЭБНИТ)