Abstract
AbstractAdditively 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 MoO2 nanowires (MoO2‐G/AMEs), which are subsequently explored as a capacitor within 1 m H2SO4, 1‐butyl‐3‐methylimidazolium hexafluorophosphate, and 1‐butyl‐3‐methylimidazolium tetrafluoroborate. Optimization of the MoO2‐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.
Highlights
Supercapacitors, or electrochemical capacitors, have attracted a great deal of attention as energy storage devices since they haveAdditive manufacturing (AM) is a method of manufacturing several advantages over batteries, such as high power densities, in which a model designed by Computer Aided Design (CAD) long life cycles, high reversibility, and relatively low cost
This paper introduces additive manufactured electrodes (AMEs) as a platform for modification, with specific materials via electrochemical decoration, and explores their ability to perform towards energy storage applications; such modification requires an AME with a conducive surface that is only possible via bespoke fabricated conductive filaments, which are not commercially available
It is important to note that the molybdenum oxides deposited via the technique described typically is comprised of a mixture of MoO2 and MoO3, it is common practice within the literature to denote the molybdenum oxides deposited as MoO2.[21]. Following the additive manufacturing of the graphene additively manufactured electrodes (G/AMEs), they were electrochemically decorated with MoO2 using a solution of 1 × 10−3 m Na2MoO4 at variable potential voltages and time spans
Summary
Additive manufacturing (AM) is a method of manufacturing several advantages over batteries, such as high power densities, in which a model designed by Computer Aided Design (CAD) long life cycles, high reversibility, and relatively low cost. Over more-classical manufacturing techniques, in certain niche Supercapacitors are used to be separated into two common catapplications, as it allows for the rapid transition from an ini- egories: electrochemical double layer capacitors and pseudocatial CAD design to 3D objects. This is due to AM allowing for pacitors.
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