Singh, Neelam and Ansari, J R and Pal, Mrinal and Thanh, Nguyen T K and Le, Tung and Datta, Anindya (2020) Synthesis and magnetic properties of stable cobalt nanoparticles decorated reduced graphene oxide sheets in the aqueous medium. Journal of Materials Science-Materials in Electronics, 31 (18). pp. 15108-15117. ISSN 0957-4522

[img] PDF - Published Version
Restricted to Registered users only

Download (2271Kb) | Request a copy


We have synthesized cobalt nanoparticles-reduced graphene oxide (Co-RGO) nanocomposites. The Co NPs achieve shape variation in different nanocomposites due to the strategic use of variety in the preparation techniques. The transmission electron microscope image of composites confirms the decoration of different shapes of Co NPs on RGO sheets. The magnetic study with the variation of temperature indicates a change in the form of hysteresis loops. This is due to the transition from ferromagnetic to superparamagnetic behavior. We found that cubic-shaped Co NPs while decorating RGO show the highest values for some critical magnetic parameters. Coercivity, magnetic moment, and squareness ratio are these parameters. Besides, the nanocomposite-impregnated aqueous sols are found to be quite stable and could be a potential candidate for inkjet printing and ferrofluid as the squareness ratio (M-r/M-S) is very small.

Item Type: Article
Subjects: Engineering Materials
Depositing User: Bidhan Chaudhuri
Date Deposited: 05 Feb 2021 07:02
Last Modified: 05 Feb 2021 07:02

Actions (login required)

View Item View Item