Copper 3D-Printed Electrodes for Ammonia Electrosynthesis via Nitrate Reduction

Ammonia is critical to the world economy. However, nowadays production of ammonia exclusively carried out by well-known Haber–Bosch process, which an energy-intensive process that leads a large amount CO2 emissions. The search for alternative routes mandatory sustainable and zero emissions future Electrochemical nitrate-to-ammonia conversion emerges as suitable achieve decentralized at small scale with perspective. Here, we fabricate copper electrodes three-dimensional (3D) printing technique, allows point-of-use customizable fabrication electrochemical systems, use them conversion. By using fused filament Cu-based were prepared in easy, fast, scalable way from Cu-containing filament. electrode was used conversion, obtaining outstanding faradaic efficiency (FE) 96.5% high selectivity 95%. copper-based system paves on-demand, production.