The growing geopolitical concern towards increased energy demands has resulted in a drive to create and optimise cleaner and more sustainable alternatives via materials chemistry research. This has compelled innovation within the energy storage industry, in order to cope with these rising needs. Designing electrodes that can maintain structural/chemical stability while sustaining their energy and power densities has been a highly sought after objective, and usually requires the amalgamation of a metal/carbon composite material.<br/>Previous work has highlighted the benefits of incorporating metals into carbon frameworks, utilising high surface areas and multiple methods of capacitance, but has struggled to balance the power and energy densities of the storage mechanism. The inclusion of transition metals onto the surface of a carbon ‘templates’ have become regular practice in composite electrode synthesis, improving either the conductivity or the system’s faradaic charge capacitive mechanism. This has been performed via metal oxides, metal organic frameworks, and MXenes, exhibiting beneficial traits towards the performance of batteries and capacitors, while suffering from structural degradation.<br/>Supercapacitors are energy storage cells that have introduced a new avenue of research, focusing on greater power density, via the double layer charge mechanism. Here we will discuss using a reduced graphene oxide carbon composite with the novel deposition of silver nanoparticle. We investigate alternative ligand design to tailor the properties of the subsequent precursor, allowing for a tuneable functionality, noting their effect on the conductivity and resultant specific capacity of the carbon composite. We discuss the synthesis, characterisation and the electrochemical results of these composites, with the intention of creating supercapacitive cells via deposition techniques.

Novel silver nanoparticle deposition on a reduced graphene oxide composite for energy storage

2019 Fall National Meeting

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