Преподаватели и сотрудники

Жаворонкова Ксения Николаевна

Занимаемые должности

Профессор (Кафедра технологии изотопов и водородной энергетики)

Телефон

8-495-496-68-38

E-mail

zavoron@rctu.ru

Сайт https://muctr.ru
Уровень образования Высшее
Квалификация

Инженер-технолог

Преподаваемые дисциплины

Методы анализа изотопов и ОСЧ

Учёная степень

Доктор химических наук

Учёное звание Профессор
Наименование направления подготовки и (или) специальности

Технология разделения и применения изотопов

Общий стаж работы 59 лет (с 07.03.1960)
Стаж работы по специальности 54 года (с 25.04.1965)

Публикации

The h2-d2 exchange reaction catalyzed by gold nanoparticles supported on -al2o3: Effect of particle size on the reaction rate / E. V. Abkhalimov, O. A. Boeva, A. A. Odintzov et al. // Catalysis Communications. — 2020. — Vol. 133. — P. 105840. Gold nanoparticles supported on γ-Al2O3 catalyzed the hydrogen isotope exchange Н2+D2 at low temperatures, ca. 77 K. The specific catalytic activity increases by a factor of ∼800 as the particle size decreases from 39.3 to 0.7 nm. A correlation has been established between the catalytic activity of nanoparticles of different size and the concentration of low-coordination gold surface atoms. Apparently, the obtained empirical equations can be used to estimate the specific catalytic activity of gold nanoparticles of various sizes. [ DOI ]

Boeva* O. A., Odintsov A. A., Zhavoronkova K. N. Activation of gold due to the size effect for the isotopic reactions in molecular hydrogen // Journal of Physics: Conference Series. — 2018. — Vol. 1099, no. 012027. [ DOI ]

Ortho-para hydrogen conversion catalyzed by gold nanoparticles / E. ABKHALIMOV,  BOEVA, A. ODINTZOV et al. // 9TH INTERNATIONAL CONFERENCE ON NANOMATERIALS - RESEARCH & APPLICATION (NANOCON 2017). — 2018. — P. 308–314. We set ourselves the task to perform a systematic study of the ortho–para conversion of protium catalyzed by γ-Al2O3-supported gold nanoparticles of various sizes at a temperature of 77 K. Our results unambiguously indicate that nanoparticles, as opposed to the bulk metal, shown a high catalytic activity. It is exhibited that all Au/γ-Al2O3 catalysts with nanoparticles of 4.6-40.1 nm sizes show very high catalytic activity in ortho-para conversion reaction. The calculated specific catalytic activity Ksp of ortho-para hydrogen conversion were (3.9 ± 1.2) × 1014 mol cm-2∙s-1 for all of the catalysts tested. The conversion of o-protium to p-protium catalyzed by gold nanoparticles does not depend on the nanoparticle size.

Low-temperature ortho-para hydrogen conversion catalyzed by gold nanoparticles: Particle size does not affect the rate / O. A. Boeva, A. A. Odintzov, R. D. Solovov et al. // International Journal of Hydrogen Energy. — 2017. — Vol. 42, no. 36. — P. 22897–22902. Catalytic activity of 4–40 nm gold nanoparticles supported on γ-Al2O3 in the reaction of ortho–para conversion of protium has been studied. The results of test indicate that nanoparticles exhibit a high catalytic activity and the rate of reaction, virtually does not depend on the particle size. [ DOI ]

Boeva O. A., Odintsov A. A., Zhavoronkova K. N. Preparation of nanostructured gold films and analysis of their catalytic properties // Journal of Surface Investigation: X-ray, Synchrotron and Neutron Techniques. — 2017. — Vol. 11, no. 2. — P. 458–462.

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