Тип публикации: статья из журнала

Год издания: 2022

Идентификатор DOI: 10.3390/nano12244366

Ключевые слова: supercritical fluids, Co-Ni alloy, solid substitution solution

Аннотация: Mixed Co-Ni bimetallic systems with the structure of a solid substitution solution have been synthesized using the supercritical antisolvent precipitation (SAS) method, which uses supercritical CO2 as an antisolvent. The systems obtained have been characterized in detail using X-ray diffraction (XRD), high-resolution transmission eПоказать полностьюlectron microscopy (HRTEM), Fourier-transform infrared (FTIR) spectroscopy, and magnetostatic measurements. It has been found that Co-enriched systems have a defective hexagonal close-packed (hcp) structure, which was described by a model which embedded cubic fragments of packaging into a hexagonal close-packed (hcp) structure. It has been shown that an increase in water content at the precipitation stage leads to a decrease in the size of cubic fragments and a more uniform distribution of them in Co-enriched systems. It has also been shown that mixed systems have the greatest coercivity in the line of samples. Ni-enriched bimetallic systems have a cubic close-packed (ccp) structure with modified crystal lattice parameters.

Журнал: Nanomaterials

Выпуск журнала: Т.12, №24

Номера страниц: 4366

ISSN журнала: 20794991

Издатель: MDPI AG

• Nesterov Nikolay (Boreskov Institute of Catalysis, Siberian Branch of the Russian Academy of Sciences)
• Pakharukova Vera (Boreskov Institute of Catalysis, Siberian Branch of the Russian Academy of Sciences)
• Cherepanova Svetlana (Boreskov Institute of Catalysis, Siberian Branch of the Russian Academy of Sciences)
• Yakushkin Stanislav (Boreskov Institute of Catalysis, Siberian Branch of the Russian Academy of Sciences)
• Gerasimov Evgeniy (Boreskov Institute of Catalysis, Siberian Branch of the Russian Academy of Sciences)
• Balaev Dmitry (Siberian Federal University)
• Semenov Sergei (Siberian Federal University)
• Dubrovskii Andrey (Krasnoyarsk Science Centre of the Siberian Branch of Russian Academy of Science)
• Martyanov Oleg (Boreskov Institute of Catalysis, Siberian Branch of the Russian Academy of Sciences)

• Ядро РИНЦ (eLIBRARY.RU)