APPLICATION OF 3D-PRINTING TECHNOLOGY TO CREATE THIN FILM ELECTRODES BASE ON GRAPHENE OXIDE/POLYVINYL ALCOHOL COMPOSITE
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3D printing; Electrochemical activity; Graphene oxide; Polyvinyl alcohol.Abstract
This work presented a method to create graphen oxit/polyvinyl ancol inks and using 3D printing technique to manufacture a thin film electrode. First, the gel graphene oxide (GO) was synthesized by Tour’s method. After that, GO was mixed with polyvinyl alcohol (VPA) with specific ratio to become direct inks. Second, the inks was printed on graphite paper substrates by using direct ink writing. The morphology and component of chemical elements were determined using Scanning Electron Microscope (SEM), Scanning transmission electron microscopy (TEM), Energy-dispersive X-ray spectroscopy. As- printed electrodes was calculated electrochemical parameters by using CV technical in K3[Fe(CN)6]/K4[Fe(CN)6] solution. The results show that, with PVA occupied 12 percentage of weight, electrode has stability and electrochemical activity highest.
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