Zobrazeno 1 - 10
of 24
pro vyhledávání: '"V I, Lygin"'
Autor:
V. I. Lygin
Publikováno v:
Russian Journal of General Chemistry. 71:1368-1372
Amount, properties, state of silica siloxane, silanol surface structures can be expedientlyregulated by varying the regime of thermal dehydroxylation and the amount of chemisorbed water. The obtained data can be used in the development of the procedu
Autor:
V. I. Lygin
Publikováno v:
Russian Journal of Physical Chemistry. 80:304-306
A comparison of the experimental and calculated spectra of the structures of silica surfaces modified with TiCl4 shows that only monofunctional groups are formed upon modification of a dehydroxylated surface and that both mono-and bifunctional titani
Publikováno v:
Reaction Kinetics and Catalysis Letters. 9:65-68
Fragments of the zeolite structure have been calculated by the EHT method. The results are in agreement with spectral data on structural hydroxy groups of zeolites.
Autor:
Kh. G. Magomedbekov, V. I. Lygin
Publikováno v:
Journal of Structural Chemistry. 26:342-345
Autor:
S. L. Girgorovich, V. I. Lygin
Publikováno v:
Journal of Applied Spectroscopy. 28:474-477
Publikováno v:
physica status solidi (b). 156:205-209
Une analyse chimique quantique est faite sur des defauts de surface formes durant la deshydroxylation de silice. On utilise la methode MNDO avec l'optimisation des parametres geometriques des clusters de silice. On montre que la deshydroxylation de l
Publikováno v:
Russian Chemical Reviews. 49:526-535
Recent views on the mechanism of the separation of organic sulphur compounds by adsorption on oxides and on zeolites are discussed. 137 references
Publikováno v:
Rubber Chemistry and Technology. 35:311-316
Chemical analysis and adsorption of water indicate that strongly oxidized carbon blacks contain various oxygen compounds which greatly influence adsorption of water. Infrared spectra give indications of the nature of these compounds and of their mutu
Autor:
A. V. Kiselev, V. I. Lygin
Publikováno v:
Bulletin of the Academy of Sciences of the USSR Division of Chemical Science. 8:388-394
1. Using the electron-microscope method of carbon replicas, a study was made of the porous structure of a starting uniformly large-pored magnesium hydroxide sample, calcined at 200°, and of the magnesium oxide specimens obtained from it by calcinati
Autor:
A V Kiselev, V I Lygin
Publikováno v:
Russian Chemical Reviews. 31:175-195
CONTENTS I. Introduction 176 II. Technique for the spectroscopic investigation of surfaces of highly disperse substances 176 III. Surface chemical compounds and chemisorption 178 IV. Simultaneous chemisorption and physical adsorption 185 V. Physical