Труды КНЦ вып.9 (ХИМИЯ И МАТЕРИАЛОВЕДЕНИЕ вып. 1/2018(9) часть 1)

coated with various catalysts and they have been used for fine chemicals synthesis a continuous-flow reactor working under RF heating [8, 9]. This process offers the possibility to perform catalytic transformations in small and decentralized units, taking profit of the high energy efficiency and a possibility for fast scale-up [10]. Acknowledgements The financial support from the Science and Technology Planning Project of Hunan Province, China (2012WK3023), and the Russian Science Foundation (project 15-13-20015) is gratefully acknowledged. References 1. Gain A. K., Zhang L., Liu W., Microstructure and material properties of porous hydroxyapatite-zirconia nanocomposites using polymethyl methacrylate powders // Mater. Design. 2015. Vol. 67. P. 136-144. 2. Synthesis and characterization of hollow metal oxide micro-tubes using a biomaterial template / K.-J. Hwanget al. // Biomass Bioenergy. 2014. Vol. 68. P. 62-66. 3. Bao N., Wei Z., Ma Z., Si-doped mesoporous TiO 2 continuous fibers: preparation by centrifugal spinning and photocatalytic properties // J. Hazard. Mater. 2010. Vol. 174. P. 129-136. 4. Preparation of carbon microtubes by carbonizing the fluff of chinar tree and their application as supercapacitor electrodes / Y. Ma et al. // Chin. J. Inorg. Chem. 2012. Vol. 663. P. 546-550. 5. Structural and magnetic properties of Ni1-xZnxFe2O4 (x = 0, 0,5 and 1) nanopowders prepared by sol-gel method P. Gao et al. // J. Magnet. Magnet. Mater. 2013. Vol. 348. P. 44-50. 6. Magnetic properties, exchange coupling and novel stripe domains in bulk SrFe^O^ANi, Zn)Fe2O4 composites / A. L. Xia et al. // J. Phys. D. 2014. Vol. 47. P. 415004. 7. Mechanically induced cation redistribution in magnesium ferrite and its thermal stability / V. Sepelak et al. // Solid State Ionics. 2001. Vol. 141-142. P. 677-682. 8. Chatteijee S., Degirmenci V., Rebrov E. V. Design and operation of a radio-frequency heated micro-trickle bed reactor for consecutive catalytic reactions // Chem. Eng. J.2015. Vol. 281. P. 884-891. 9. Design of a radio frequency heated isothermal micro-trickle bed reactor / S. Chatterjee et al. // Chem. Eng. J. 2014. Vol. 243. P. 225-233. 10. Houlding T., Rebrov E. V. Application of alternative energy forms in catalytic reactor engineering // Green Proc. Synth. 2012. Vol. 1. P. 19-31. 11. Effect of Pr3+substitution on the microstructure, specific surface area, magnetic properties and specific heating rate of Ni 0 , 5 Znc, 5 PrxFe 2-xO4 nanoparticles synthesized via sol-gel method / B. Yan et al. // J. Alloys Compd. 2015. Vol. 639. P. 626-634. Сведения об авторах Ребров Евгений Викторович доктор технических наук, кандидат химических наук, Университет Уорвик, г. Ковентри, Великобритания; Тверской государственный технический университет, г. Тверь, Россия e.rebrov@warwick.ac.uk Пенжао Гао кандидат химических наук, Университет Хунань, г. Чанша, Китай gaopengzhao7602@hnu.edu.cn Rebrov Evgeny Victorovich Dr. Sc. (Engineering), Ph.D (Chemistry), University ofWarwick, Coventry, UK; Tver State Technical University, Tver, Russia e.rebrov@warwick.ac.uk Pengzhao Gao PhD (Chemistry), Hunan University, Changsha, China gaopengzhao7602@hnu.edu.cn DOI: 10.25702/KSC.2307-5252.2018.9.1.104-109 УДК 544.02 : 544 - 971 ОСОБЕННОСТИ ТЕРМОДИНАМИЧЕСКОГО ОПИСАНИЯ СИСТЕМ НА ОСНОВЕ ОКСИДОВ ГАФНИЯ И РЕДКОЗЕМЕЛЬНЫХ ЭЛЕМЕНТОВ ПРИ ВЫСОКИХ ТЕМПЕРАТУРАХ В. Л. Столярова, В. А. Ворожцов, С. И. Лопатин Санкт-Петербургский государственный университет, г. Санкт-Петербург, Россия Аннотация Керамика на основе оксидов гафния и редкоземельных элементов представляет интерес для создания новых материалов высшей огнеупорности. В обзоре обсуждаются термодинамические свойства, полученные в рассматриваемых системах различными методами высокотемпературной химии. 104