Тип публикации: статья из журнала
Год издания: 2023
Идентификатор DOI: 10.1134/S0036023623601952
Ключевые слова: nanopowders, nickel, palladium, bimetals, hydrothermal synthesis
Аннотация: The processes of contact reaction of nickel metal powders with aggregated particle sizes of 300–400 nm with aqueous solutions of palladium(II) in autoclaves at elevated temperatures in acidic and alkaline media have been studied. It has been found that when metallic nickel contacts with aqueous solutions of palladium(II) chloride iПоказать полностьюn 0.01 M hydrochloric acid at temperatures of 100 and 130°C for 15 min, the concentration of divalent palladium ions decreases to zero. The process is accompanied by a partial transition of nickel into solution. The precipitates are a mixture of metallic particles of nickel and palladium of variable compositions. In the case of contact of metallic nickel with solutions of tetraammine palladium(II) chloride at temperatures of 160 and 170°C in a medium of 0.1 M potassium hydroxide, metal palladium particles 5–25 nm in size are formed on the surface of larger nickel particles. The structure of bimetallic particles has been determined by X-ray photoelectron microscopy.
Журнал: Russian Journal of Inorganic Chemistry
Выпуск журнала: Т.68, №11
Номера страниц: 1523-1531
ISSN журнала: 00360236
Место издания: Москва
Издатель: Pleiades Publishing, Ltd. (Плеадес Паблишинг, Лтд)