Zobrazeno 1 - 10
of 19
pro vyhledávání: '"L. A. Koptelova"'
Publikováno v:
Glass Physics and Chemistry. 47:657-664
Autor:
A. A. Akatov, V. A. Doil’nitsyn, K. E. Pugachev, L. A. Koptelova, A. V. Osipov, L. P. Mezentseva
Publikováno v:
Glass Physics and Chemistry. 45:565-572
Ceramic matrix composites for solidification and disposal of actinide-rare-earth fraction of high-level waste (HLW) were prepared by sintering of nanosized powders of 0.8LaPO4–0.2Al2O3, 0.8LaPO4–0.2Y2O3 and 0.8LaPO4–0.2ZrO2 obtained from 0.8LaP
Publikováno v:
Russian Journal of General Chemistry. 86:219-223
The interaction of vanadyl acetate, vanadium(V) oxide, and vanadium(V) isopropylate with capronic acid has afforded a series of nanosized vanadium oxide powders. The products structure has been studied by X-ray diffraction analysis. Both amorphous an
Publikováno v:
Glass Physics and Chemistry. 41:219-223
A new method of synthesis of nanodispersed yttrium-aluminum garnet (YAG, Y3Al5O12) consisting in the solvothermal treatment of a mixture of the respective elements of chlorides and aluminum isopropylate in high-boiling organic solvents (diphenyloxide
Autor:
N. N. Khimich, E. I. Grishkova, E. N. Poddenezhnyi, A. A. Boiko, A. V. Zdravkov, A. O. Dobrodei, L. A. Koptelova, Valery Ugolkov
Publikováno v:
Glass Physics and Chemistry. 35:504-510
New methods for synthesizing yttrium aluminum garnet doped by cerium have been developed. Nanopowders of precursors are prepared by the combustion of Al, Y, and Ce nitrates in glycerin and in a solution of fructose with microwave activation of the pr
Publikováno v:
Glass Physics and Chemistry. 35:181-190
Our recent achievements in the synthesis of monolithic SiO2 xerogels (nonfractured upon drying), as well as hybrid composite nanomaterials and silica glasses based on these xerogels, are considered briefly. A number of new promising methods are devel
Publikováno v:
Russian Journal of General Chemistry. 78:1938-1943
A method was developed for the synthesis of Ru2+ tris(2,2′-dipyridyl) complexes where one of the ligands contains substituents with triple bonds conjugated with the dipyridyl system.
Autor:
A. A. Boiko, G. M. Berdichevskii, V. M. Ken’ko, E. N. Poddenezhnyi, V. V. Golubkov, O. B. Evreinov, N. N. Khimich, L. A. Koptelova
Publikováno v:
Glass Physics and Chemistry. 33:152-155
An optical quality silica glass doped with Er3+, Yb3+ and Lu3+ ions is synthesized by the sol-gel method. Virtually unavoidable clusterization of rare-earth elements that occurs upon introduction of lanthanide salts into a sol-gel system and leads to
Publikováno v:
Russian Journal of Applied Chemistry. 79:1769-1774
Sol-gel process of hydrolytic polycondensation of tetramethoxysilane with trimethoxysilyl derivatives of lanthanide phosphoramide complexes was studied in order to obtain photoluminescent organic-inorganic hybrid materials.
Publikováno v:
Russian Journal of Applied Chemistry. 77:290-294
The possibility of using acetic acid in the organic sol-gel synthesis of a monolithic SiO2 gel both in the presence of water and in an anhydrous medium was studied.