Help Privacy Policy Disclaimer
  Advanced SearchBrowse




Journal Article

Gamma-radiation induced synthesis of freestanding nickel nanoparticles


Tarakina,  Nadezda V.
Nadezda V. Tarakina, Kolloidchemie, Max Planck Institute of Colloids and Interfaces, Max Planck Society;

External Resource
No external resources are shared
Fulltext (public)

(Publisher version), 4MB

Supplementary Material (public)
There is no public supplementary material available

Yang, Y., Johansson, M., Wiorek, A., Tarakina, N. V., Sayed, F., Mathieu, R., et al. (2021). Gamma-radiation induced synthesis of freestanding nickel nanoparticles. Dalton Transactions, 50(1), 376-383. doi:10.1039/D0DT03223A.

Cite as: http://hdl.handle.net/21.11116/0000-0007-9E39-8
A versatile method to produce metallic nickel nanoparticles is demonstrated. Metallic Ni nanoparticles have been synthesized from aqueous solution of NiCl2 using γ-radiation induced reduction. To prevent Ni re-oxidation, post-irradiation treatment was elaborated. Structural and compositional analyses were executed using X-ray diffraction, transmission electron microscopy and X-ray photoelectron spectroscopy. These studies reveal that the synthesized material consists of fcc Ni particles having size of 3.47 ± 0.71 nm. The nanoparticles have a tendency to agglomerate to the larger clusters. The latter are partially oxidized to form thin amorphous/poor-crystalline Ni(OH)2/NiO layers at the surface. Magnetization measurements demonstrate that the nanomaterial exhibit ferromagnetic-like behaviour with magnetization 30% lower than that in bulk Ni. The large active surface area (ECSA, 39.2 m2 g−1) and good electrochemical reversibility, confirmed by the electrochemical studies, make the synthesized material a potential candidate as an active component for energy storage devices.