“…Research groups in electrochemistry and/or electroanalysis are currently looking for standardized and customized ways to produce electrochemical devices that are more efficient, low-cost, sustainable, and more durable. Among the main objects of study are the electrodes (anode, cathodes, sensors, biosensors, and immunosensors) (Silva et al, 2015;Duarte et al, 2017;Honeychurch et al, 2018;Silva et al, 2018;Cardoso et al, 2019;Cardoso et al, 2020a;Rocha et al, 2020), electrochemical cells (Raju and Basha, 2005;Zhakeyev et al, 2017;Cardoso et al, 2018;Katseli et al, 2020;Lim et al, 2020), microfluidic systems (Duarte et al, 2017;Rossi et al, 2018), among others (Zhu et al, 2016;Cardoso et al, 2020b), especially with regard to the applications for energy storage (batteries and supercapacitors) (Zhang et al, 2020), water splitting (Ambrosi and Pumera, 2016;Zambiazi et al, 2020), hydrogen evolution (Iffelsberger et al, 2020), fuel cells (Bian et al, 2018) and sensors (Cardoso et al, 2020b). Faced with this challenge, 3D printing has been surprisingly useful to prepare an unlimited sort of customized electrochemical devices.…”