Nanosystems: Phys. Chem. Math., 2022, 13 (5), 514–524
Formation, structure, composition in the dispersed state, and behavior of nanoparticles heated in the Mg(OH)2–Ni(OH)2 system
Maria E. Kotova – I. V. Grebenshchikov Institute of Silicate Chemistry of the Russian Academy of Sciences, St. Petersburg; V. I. Ulyanov St. Petersburg State Electrotechnical University “LETI”, St. Petersburg, Russia; kotovamaria715@gmail.com
Tatiana P. Maslennikova – I. V. Grebenshchikov Institute of Silicate Chemistry of the Russian Academy of Sciences, St. Petersburg; V. I. Ulyanov St. Petersburg State Electrotechnical University “LETI”, St. Petersburg, Russia; maslennikova.tp@iscras.ru
Valery L. Ugolkov – I. V. Grebenshchikov Institute of Silicate Chemistry of the Russian Academy of Sciences, St. Petersburg, Russia; ugolkov.52@gmail.com
Victor V. Gusarov – I. V. Grebenshchikov Institute of Silicate Chemistry of the Russian Academy of Sciences, St. Petersburg; V. I. Ulyanov St. Petersburg State Electrotechnical University “LETI”, St. Petersburg, Russia; victor.v.gusarov@gmail.com
Corresponding author: Maria E. Kotova, kotovamaria715@gmail.com
DOI 10.17586/2220-8054-2022-13-5-514-524
ABSTRACT The effect of nickel content in Mg1-xNix(OH)2 nanoparticles produced by reverse co-precipitation on their structural characteristics, morphology and size parameters of crystallites and particles has been studied. The plate-shaped nanoparticles were shown to be predominantly single crystals. It has been determined that when the nickel content x in the hydroxide solid solution is not less than 0.4, the particle size sharply decreases and the number of stacking faults increases. The dependence of the dehydration temperature of Mg1-xNix(OH)2 nanoparticles on the nickel content has been revealed.
KEYWORDS magnesium hydroxide, nickel hydroxide, layered double hydroxide, nanoparticles.
ACKNOWLEDGEMENTS TEM was done by D. A. Kirilenko (Ioffe Institute) using the equipment of the Federal Collective Use Center “Materials Science and Diagnostics in Advanced Technologies” supported by the Ministry of Education and Science of Russia (Project Unique ID RFMEFI62117X0018).
FUNDING OF THE WORK The work was carried out in the framework of the State Assignment to the Institute of Silicate Chemistry of RAS with support from the Ministry of Education and Science of Russia (Topic No 0081-2022-0008).
FOR CITATION Kotova M.E., Maslennikova T.P., Ugolkov V.L., Gusarov V.V. Formation, structure, composition in the dispersed state, and behavior of nanoparticles heated in the Mg(OH)2–Ni(OH)2 system. Nanosystems: Phys. Chem. Math., 2022, 13 (5), 514–524.
[In Russian] М.Е. Котова, Т.П. Масленникова, В.Л. Уголков, В.В. Гусаров
Формирование, структура, дисперсный состав и поведение при нагревании наночастиц в системе Mg(OH)2–Ni(OH)2
УДК 544.015.2+54.057
АННОТАЦИЯ Изучено влияние содержания никеля в наночастицах Mg1-xNix(OH)2, образующихся в условиях обратного соосаждения, на их структурные характеристики, морфологию, размерные параметры кристаллитов и частиц. Показано, что наночастицы в виде пластин являются преимущественно монокристаллическими. Определено, что при содержании никеля в гидроксидном твердом растворе х ≥ 0.4 резко уменьшается размер частиц и увеличивается количество дефектов упаковки. Выявлена зависимость температуры дегидратации наночастиц Mg1-xNix(OH)2 от содержания никеля.
КЛЮЧЕВЫЕ СЛОВА гидроксид магния, гидроксид никеля, слоистый двойной гидроксид, наночастицы.
