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21.
The State of the Active Sites and Deactivation of Mo-ZSM-5 Catalysts of Methane Dehydroaromatization
22.
E. G. Ismailov Z. G. Zulfugarov V. F. Anufrienko N. G. Maksimov V. D. Sokolovskii 《Reaction Kinetics and Catalysis Letters》1979,10(3):255-258
The change in the ESR parameters of O
2
–
ion-radicals under the effect of adsorption of reducing molecules on zinc oxide consists in the increase of the Z-component of the g-tensor. This change is assumed to be due to the transition of O
2
–
coordination from -to the -type.
- O 2 – , Z- g-. , O 2 – - -.相似文献
23.
V. F. Anufrienko T. M. Yurieva F. S. Hadzhieva T. P. Minyukova S. Yu. Burylin 《Reaction Kinetics and Catalysis Letters》1985,27(1):201-205
ESR and electronic spectroscopy have reveled that in low-temperature ZnO the copper ions form Cu–O–Cu type cluster structures with highly covalent bonds and strong exchange interaction between the ions. The nearer environment of the Cu2+ ions is an octahedron with distortion towards square planar coordination.
, ZnO Cu–O–Cu . Cu2+- , .相似文献
24.
N. N. Bulgakov V. F. Anufrienko V. V. Zakharov 《Reaction Kinetics and Catalysis Letters》1989,40(2):221-225
By using the interacting bonds method (IBM), it has been established that for the chloride Ziegler systems (TiCl4+AlR3) for polymerization the formation of Ti
2
7+
and Ti
2
6+
pairs is a thermodynamically favorable process.
(TiCl4+AlR3) () , Ti 2 7+ Ti 2 6+ .相似文献
25.
V. V. Zakharov V. F. Anufrienko T. F. Filatova I. Sh. Guzman O. I. Adrov A. V. Kucherov 《Reaction Kinetics and Catalysis Letters》1990,42(1):107-112
It has been established that at low temperatures of TiCl4+AOC catalyst preparation in solution (with Ti/Al1/15), ESR spectra exhibit rhombic anisotropy of the g-factor. Experiments with the sample having 61 % concentration of47Ti isotopes suggest the formation of associates of Ti3+ with magnetic ordering, apparently due to the Jahn-Teller cooperative effect.
TiCl4+ AOC ( Ti/Al1/15) g-. 47Ti (61%) Ti3+ , , -.相似文献
26.
Theoretical and Experimental Chemistry - 相似文献
27.
V. A. Poluboyarov G. A. Nesterov V. A. Zakharov V. P. Anufrienko 《Reaction Kinetics and Catalysis Letters》1984,25(1-2):33-38
Peculiarities of ethylene interaction with surface alkyl compounds of Ti3+ in catalysts for ethylene polymerization prepared via the reaction between tetrabenzyltitanium and silica have been studied by the ESR method.
Ti3+ , -.相似文献
28.
L. P. Davydova G. K. Boreskov V. V. Popovskii T. M. Yurieva V. F. Anufrienko 《Reaction Kinetics and Catalysis Letters》1982,18(1-2):203-207
The bond energy of surface oxygen in a copper-magnesium catalyst and its reactivity are shown to be greatly dependent on the structure of the nearer environment of copper ions. For catalysts prepared at low temperatures (773 K) this structure changes from a symmetrical square planar in CuO to an octahedral with various degrees of axial distortion depending on the copper content.
, . , (773 ), CuO .相似文献
29.
V. F. Anufrienko V. A. Poluboyarov L. A. Vostrikova K. G. Ione 《Reaction Kinetics and Catalysis Letters》1984,25(1-2):39-43
Crystalline silicate of ZSM zeolite structure was synthesized via hydrothermal crystallization at large contents of copper. ESR spectra of Cu2+ ions stabilized in this system are determined by the specific ordering due to the cooperative Jahn-Teller effect of Cu2+ ions with the dx
2–y2 ground state.
423° ZSM . Cu(II), , - Cu2+ cdx2–y2— .相似文献
30.