Promoting Nitrogen Electroreduction on Mo₂C Nanoparticles Highly Dispersed on N‐Doped Carbon Nanosheets toward Rechargeable Li–N₂ Batteries

Abstract N₂ fixation is a challenging and rewarding issue. However, the traditional Haber–Bosch process consumes a large amount of fossil fuels, resulting in serious environmental pollution. Instead, N₂ electroreduction is a promising way to convert and utilize N₂. Among various N₂ electroreduction methods, combining N₂ reduction with batteries is simple and efficient. Here, a composite of ultrasmall Mo₂C particles highly dispersed on N‐doped carbon nanosheets is prepared, and it is applied as the air cathode for Li–N₂ batteries. Li–N₂ batteries show high discharge capacity and superior reversibility, demonstrating that the Li–N₂ battery is a promising platform for N₂ electroreduction and electrochemical energy storage.