Enhancing nitrate electroreduction for ammonia production over electron-deficient Co3O4 with La doping regulation

Electrocatalytic reduction of nitrate (NO3−) can efficiently transform NO3− into ammonia (NH3), enabling the simultaneous removal of NO3− pollutant from wastewater and the production of NH3. Here, we report the use of rare-earth lanthanum-doped Co3O4 nanowires array on carbon cloth (La-Co3O4/CC) as an efficient electrocatalyst for the conversion of NO3− to NH3. The as-synthesized La-Co3O4/CC demonstrates a remarkable NH3 Faradaic efficiency (96.36