There is a pressing need to develop more environmentally friendly ways to generate and store electrical energy. Current technology for this is limited by the speed at which power storage can absorb and store the energy generated. To this end, transition metal nitride materials have been investigated with the aim of creating a nitride based supercapacitor. Ti(NEt2)4 and V(NEt2)4 were prepared and there, and Ta(NMe2)5's, sol-gel chemistry was explored. These sols were infiltrated into multilayer templates, composed of hexagonally close packed opalescent crystals of DVB crosslinked amidine capped polystyrene spheres and heated under flowing ammonia to give metal nitride inverse opals exhibiting long range order and specific capacitances of upto 2 F g-1. Solid (Ti,V)N solutions were also synthesised and tested electrochemically as supercapacitor electrode materials. TiN and VN foils were prepared and subjected to a range of surface treatments. Their specific capacitances at a range of scan rates were measured to ascertain which surface treatment gave the highest capacitive performance.