Zobrazeno 1 - 10
of 13
pro vyhledávání: '"V. D. Khavryuchenko"'
Autor:
A. A. Boiko, A. A. Kalenyuk, A. A. Lysenko, L. P. Tikhonova, I. P. Svarkovskaya, V. D. Khavryuchenko
Publikováno v:
Journal of Analytical Chemistry. 64:18-25
The promoting effect of vanadium(V, IV) in the reaction of gallic acid oxidation with bromate ions in aqueous solutions was studied, and the dependence of the rates of catalytic and noncatalytic reactions on the concentration of components was found.
Autor:
L. P. Tikhonova, Yu. A. Tarasenko, A. N. Boiko, Svetlana B. Lyubchik, V. E. Goba, M. F. Kovtun, V. D. Khavryuchenko
Publikováno v:
Russian Journal of Applied Chemistry. 81:1348-1355
Activated carbons produced by thermal treatment of a mixture of sunflower husks, low-grade coal, and refinery waste were studied as adsorbents of transition ion metals from aqueous solutions of various compositions. The optimal conditions and the mec
Publikováno v:
Journal of Structural Chemistry. 37:24-40
In order to study the silicon nitride surface it is interesting to consider hydrogen-bonded complexes with hydroxyl and amine key groups (OH...O, OH...N, NH...O, and NH...N). To investigate the behavior of the above bonds, we considered the water, am
Publikováno v:
Russian Chemical Reviews. 64:389-414
The review gives a systematic account of the results of detailed studies of the vibrational spectra of a series of industrial amorphous highly disperse silicas (aerosil, silica gel, aerogel) with the aid of inelastic neutron scattering. The observed
Computational chemistry of the silicon nitride surface. 1. Water, ammonia, and water-ammonia complex
Publikováno v:
Journal of Structural Chemistry. 36:50-59
This paper deals with computational modeling of structure and properties of the silicon nitride surface zone using combined computational and real experiments. The computational experiment implies quantum chemical calculations of structure and vibrat
Autor:
V. D. Khavryuchenko, E. F. Sheka
Publikováno v:
Journal of Structural Chemistry. 35:291-298
Autor:
V. D. Khavryuchenko, E. F. Sheka
Publikováno v:
Journal of Structural Chemistry. 35:299-304
Autor:
V. D. Khavryuchenko, E. F. Sheka
Publikováno v:
Journal of Structural Chemistry. 35:305-308
A qualitative classification algorithm for constructing large clusters of aerogel model structures is used. According to this algorithm, aerogel is classified with polysilicas characterized by a packing of long chains of silicon-oxygen tetrahedra. A
Autor:
E. F. Sheka, V. D. Khavryuchenko
Publikováno v:
Journal of Structural Chemistry. 35:215-223
This paper presents concepts underlying computational modeling of dispersive silicas. An object for modeling is polyatomic nanometer-sized clusters. A chemical software package adapted for the PC AT 386(486)/387 is utilized. A structure-sensitive met
Publikováno v:
Journal of Structural Chemistry. 34:523-533
Comparative analysis has been carried out on a set of partial basis spectra of the doubly amplitude-weighted density of vibration states (AWDS) of four dispersive silica: aerosil A380, silica gels SG20 and SG100 (with pore sizes 20 and 100 A), and ae