Ce-doped MoS2−xnanoflower arrays for electrocatalytic nitrate reduction to ammonia

Ce-doped and MoS 2−x nanoflower arrays exhibit a high activity for electrocatalytic nitrate-to-ammonia conversion (NO 3 RR), attributed to the synergy of S-vacancy and Ce-dopant to enhance the NO 3 − activation and reduce the reaction energy barriers.