Bridging laboratory research and practical utilization is of crucial importance for the
development of green ammonia synthetic technologies. A decentralized photo-assisted
electrochemical-based demonstrator has been proposed for green ammonia synthesis from
renewable electricity, air and water, where well-known defect-laden WO 3 is used as the
working electrode, and a commercially available PV panel supplies renewable electricity. In
this demonstrator, defect-laden WO 3 exhibits the optimum electrochemical NH 3 formation …