Production and investigation of iron and copper single atom catalysts for the reduction of nitrate to ammonia, with a focus on possible synergistic effects.

Nitrate pollution of groundwater is a well-known environmental issue. One approach to removing Nitrate is the electrochemical reduction to ammonia. Previous studies have demonstrated that single atom catalysts based on iron or copper enable this process. In this work, different methods were tested for producing such catalysts. Additionally, a potential synergistic effect of a mixed catalyst of iron and copper single atoms was examined.