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5 results on '"Kirsanov, A. Y."'

1. Tailoring of the Properties of Amorphous Mesoporous Titanosilicates Active in Acetone Condensation.

Author

Bikbaeva, Vera R., Artem'eva, Anna S., Bubennov, Sergey V., Nikiforov, Alexander I., Kirsanov, Viktor Y., Serebrennikov, Dmitry V., Korzhova, Lubov F., Karchevsky, Stanislav G., Khalilov, Leonard M., Kutepov, Boris I., and Grigoreva, Nellia G.

Abstract

Amorphous mesoporous materials are promising as catalysts for processes involving or forming bulk molecules. In a reaction such as acetone condensation to form mesitylene, an effective catalyst should not only have a developed porous structure but also have active centers of acidic and basic types. The sol–gel approach allows one to obtain titanosilicates with such characteristics. This work demonstrates the possibility of controlling their properties by varying the conditions for the synthesis of titanosilicate gels. It has been established that controlling hydrolysis allows one to increase the activity of amorphous mesoporous titanosilicates by 10 times: from acetone conversion of 6% to 60%. It has been shown that the use of titanium acetylacetonate complexes in the synthesis of gels leads to an increase in the content of tetracoordinated Ti in the structure and contributes to an increase in the acidity of titanosilicates. During the condensation of acetone on the obtained mesoporous titanosilicates, high acetone conversion (60–79%) and mesitylene selectivity of up to 83% were achieved. [ABSTRACT FROM AUTHOR]

Published
2024
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5. Solid solution CdxPb1–xS forecasting by simulating of sulphides lead and cadmium co-precipitation process

Author

Kirsanov, A. Y., Markov, V. F., and Maskaeva, L. N.

Subjects
сульфид свинца, УДК 546.815, computer simulation, компьютерное моделирование, lead sulfide, solid solution, твердый раствор, ГРНТИ 31.17, гидрохимическое осаждение, cadmium sulfide, hydrochemical precipitation, сульфид кадмия
Abstract

В работе исследована возможность интеркаляции тиодиацетат-анионов в структуру магний-алюминиевых слоистых двойных гидроксидов методом соосаждения и методом анионного обмена. Методом рентгенофазового анализа и КР-спектроскопии показано, что тиодиацетат-анионы внедряются в межслоевое пространство СДГ. Полученные материалы представляют интерес как сорбенты для ионов тяжелых металлов. In the present paper the author has elaborated a model, which provides prognostication forecasting of solid solution CdxPb1−xS composition at co-precipitation of individual lead and cadmium sulphides. It has been shown that content of CdS in a solid solution has extreme characteristics depending on lead Pb2+ and cadmium Cd2+ ion concentration in a reactor. Satisfactory correlation of simulation results with experimental data, obtained by X-ray analysis of the synthesized films, has been proved. Kirsanov Aleksey Yurevich – Postgraduate Student, Physical and Colloid Chemistry Subdepartment, Ural Federal University named after the first President of Russia B.N. Yeltsin. 28, Mira street, Ekaterinburg, 620002. Кирсанов Алексей Юрьевич – аспирант, кафедра «Физическая и коллоидная химия», ФГАОУ ВПО «УрФУ имени первого Президента России Б.Н. Ельцина». 620002, г. Екатеринбург, ул. Мира 28. E-mail: alexk_ft@mail.ru Markov Vyacheslav Filippovich – Dr. Sc. (Chemistry), Professor, Physical and Colloid Chemistry Subdepartment, Ural Federal University named after the first President of Russia B.N. Yeltsin. 28, Mira street, Ekaterinburg, 620002. Марков Вячеслав Филиппович – доктор химических наук, профессор, кафедра «Физическая и коллоидная химия», ФГАОУ ВПО «УрФУ имени первого Президента России Б.Н. Ельцина». 620002, г. Екатеринбург, ул. Мира 28. E-mail: vfmarkov@list.ru Maskaeva Larisa Nikolaevna – Dr. Sc. (Chemistry), Professor, Physical and Colloid Chemistry Subdepartment, Ural Federal University named after the first President of Russia B.N.Yeltsin. 28, Mira street, Ekaterinburg, 620002. Маскаева Лариса Николаевна – доктор химических наук, профессор, кафедра «Физическая и коллоидная химия», ФГАОУ ВПО «УрФУ имени первого Президента России Б.Н. Ельцина». 620002, г. Екатеринбург, ул. Мира 28. E-mail: mln@urаl.ru

Published
2013

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