Building on this, we shifted our focus to magnesium, driven by its even lower plating potential (-2.37 V vs. SHE), making it a more efficient option. We hypothesize that Mg-mediated NH3 synthesis occurs in a process analogous to Li and Ca mediated NH3 synthesis, i.e., based on the reaction scheme 1. As illustrated in the scheme 1, upon the application of a negative current, Mg²⁺ ions begin to deposit on the cathode as metallic Mg (Mg⁰). This Mg⁰ subsequently reacts with the available nitrogen, forming magnesium nitride (Mg₃N₂) on the cathode surface. The SEI formed during this process plays a crucial role in determining the functionality of the cell. If the SEI is sufficiently porous, it facilitates the transport of nitrogen to react with the Mg⁰ layer. The formed magnesium nitride undergoes protonation, releasing ammonia. This process creates nitrogen vacancies within the SEI, allowing another N₂ molecule to react with Mg⁰, thereby sustaining the reaction cycle. In our previous investigation on Calcium and Lithium mediated ammonia synthesis , we have identified an optimal concentration of the proton donor and N2 pressure crucial for achieving a balance between Li3N protolysis and Li protolysis steps. In line with these findings, for Mgmediated NH3 synthesis, we chose to operate the reactor at a N2 pressure of 6 bars. Ethanol was designated as the proton donor, with a concentration of 0.065 M. To accommodate the high pressures required for the process, we implemented a modified autoclave setup. The schematic of experimental setup is shown in Figure and actual image is shown in Figure . Within our experimental framework, Ni foam was employed as the cathode, complemented by Pt serving as the anode in a membrane less configuration. Maintaining a stirring rate of ~700 rpm ensured effective mixing of the electrolyte throughout the reaction. However, we encountered challenges with the solubility of magnesium salts in various solvents which were tested for Li-NRR and Ca-NRR, which proved to be quite limited and difficult to establish.