Standard Electrode

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The primary goal of these designs is outlined in the paper "Electrolysis Activation of Fused Filament Fabrication 3D Printed Electrodes for Electrochemical and Spectroelectrochemical Analysis," which was published in Analytical Chemistry. The DOI number for this paper is 10.1021/acs.analchem.9b01331. This specific part is a simple electrode design with a cross shape, designed to fit into the "cap for electrochemical experiments" at a consistent height. We printed this part using both ProtoPasta (https://www.proto-pasta.com/products/conductive-pla) and BlackMagic (http://www.blackmagic3d.com/default.asp) PLA-composite 3D printing filaments. The electrode's conductivity can be enhanced through a soaking process, which has been experimentally shown to increase the conductivity by over three orders of magnitude. Post-Printing Electrode Activation with Hydroxide Solution For the soaking process, we used 10 mL of a 4M hydroxide solution. Our studies showed that the optimal activation time for the electrode using BlackMagic Filament was between 6 and 24 hours, while using ProtoPasta filament required a range of 24 to 72 hours. We employed sodium hydroxide in our research, which can be purchased online from Amazon (https://www.amazon.com/Sodium-Hydroxide-Pure-Grade-Caustic/dp/B06W57NL8S/ref=sr_1_3?keywords=sodium+hydroxide&qid=1554747032&s=gateway&sr=8-3). It is essential to handle high concentrations of hydroxide with caution, as they are corrosive. To prepare a 4M solution, mix 16 grams of NaOH with approximately 100 mL of water. This process releases heat and should be performed in a well-ventilated area.