A simple procedure for the production of large ferromagnetic cobalt nanoparticles

© The Royal Society of Chemistry 2016. Epsilon cobalt (ε-Co) nanoparticles in a number of octahedral morphologies have been synthesised. The particles are polycrystalline, with sizes in the order of 30 nm. Magnetic studies reveal the particles are ferromagnetic, with a room temperature saturation ma...

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Bibliographic Details
Main Authors: Fuller, Rebecca, Goh, B., Koutsantonis, G., Loedolff, M., Saunders, M., Woodward, R.
Format: Journal Article
Published: R S C Publications 2016
Online Access:http://hdl.handle.net/20.500.11937/68474
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Summary:© The Royal Society of Chemistry 2016. Epsilon cobalt (ε-Co) nanoparticles in a number of octahedral morphologies have been synthesised. The particles are polycrystalline, with sizes in the order of 30 nm. Magnetic studies reveal the particles are ferromagnetic, with a room temperature saturation magnetisation of 131 emu g -1 . Unlike other large cubic ε-Co syntheses, we have not added an additional co-surfactant. Instead, we have modified the heating regime and reaction agitation. This alternative method highlights the complex chemistry associated with the formation of cobalt nanoparticles by thermal decomposition.