3D printing electrodes for energy conversion

Additive manufacture, also known as 3D printing, is a powerful and versatile tool to fabricate three-dimensional objects, and many research fields have been exploring 3D printing techniques for diverse applications. One of the main advantages of additive manufacturing is the possibility of fabricating tailored parts for specific applications, allowing fast prototyping and flexibility to the process. For energy conversion applications, additive manufacturing has been studied to produce versatile 3D printed electrodes and electrochemical cells, which can be applied to the production of green hydrogen through water splitting. In this chapter, the versatility of 3D printing towards the production of green hydrogen is explored, presenting the main filaments used to produce 3D printed electrodes and the strategies reported to functionalize these electrodes and improve their electrochemical activity.