MoO<sub>2</sub> Nanowire Electrochemically Decorated Graphene Additively Manufactured Supercapacitor Platforms
Alejandro García‐Miranda Ferrari, Jessica L. Pimlott, Michael P. Down, Samuel J. Rowley‐Neale, Craig E. Banks
Abstract
Abstract Additively manufactured (AM) supercapacitor platforms are fabricated from bespoke filaments, which are comprised of electro‐conductive graphene (20 wt%) incorporated polylactic acid (80 wt%), via fused deposition modeling and denoted as G/AMEs. The G/AMEs are shown to be capable of acting as a template for the electrodeposition of metals/metal oxides, in particular MoO 2 nanowires (MoO 2 ‐G/AMEs), which are subsequently explored as a capacitor within 1 m H 2 SO 4 , 1‐butyl‐3‐methylimidazolium hexafluorophosphate, and 1‐butyl‐3‐methylimidazolium tetrafluoroborate. Optimization of the MoO 2 ‐G/AMEs demonstrates capacitance up to 1212 F g –1 when used in a symmetric arrangement. The material science described herein represents a significant enhancement in unlocking AMs potential as a valid manufacturing route for device level capacitance architectures.