Conjugated Coordination Polymer Catalysts for Ammonia Electrosynthesis

Electrosynthesis of ammonia (NH₃) with renewable energy sources offers a highly promising alternative for sustainable NH₃ production under mild conditions. Among the reported NH₃ synthesis catalysts, single-atom catalysts display high activity, selectivity, and stability toward NH₃ synthesis reactions owing to their well-defined catalytic sites and maximum metal-atom utilization. Conjugated coordination polymers (CCPs) with single-atom active sites and precisely controlled coordination environment hold significant potential in electrochemical NH₃ synthesis. Abundant advances have been recently made toward the development of CCPs for NH₃ synthesis at ambient conditions. This review specifically discusses several strategies of CCPs modification and their applications in the synthesis of NH₃. Finally, the existing challenges are discussed and perspectives on future developments are provided.