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Chemical Communications 2019, 55(58), 8374-8377

Impurities in graphene/PLA 3D-printing filaments dramatically influence the electrochemical properties of the devices

Herein, for the first time, we report on the presence of metal impurities in a widely reported and commercially available graphene/polylactic acid (PLA) 3D-printing filament and discuss the influence of these impurities on the electrochemical properties of as-printed and modified electrodes with said filament. Our findings show that the graphene component of this commercial filament contains Fe, Ti and Al impurities.

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