SPION-Graphene Nanocomposites for Electrochemical Energy Storage and Conversion Devices (original) (raw)

The study presents the synthesis of superparamagnetic iron oxide nanoparticle-graphene nanocomposites (SPION-GNCs) aimed at enhancing the performance of electrochemical energy storage and conversion devices. By employing thermal treatment of stabilized SPIONs with methoxy-polyethylene glycol-carboxylic acids, the resulting SPION-GNCs exhibit superior electrical properties and reduced aggregation issues common in conventional SPIONs. The performance metrics indicate significant potential for their use as electrodes in rechargeable lithium-ion batteries and supercapacitors, despite observed capacity degradation over cycling.