Solar Urea: Towards a Sustainable Fertilizer Industry

Abstract Urea, an agricultural fertilizer, nourishes humanity. The century‐old Bosch–Meiser process provides the world's urea. It is multi‐step, consumes enormous amounts of non‐renewable energy, and has a large CO 2 footprint. Thus, developing eco‐friendly synthesis for urea priority. Herein we report single‐step Pd/LTA‐3A catalyzed from NH 3 under ambient conditions powered solely by solar energy. Pd nanoparticles serve dual function catalyzing dissociation providing photothermal driving force formation, while absorption capacity LTA‐3A removes by‐product H O to shift equilibrium towards production. conversion rate 87 μmol g −1 h . This advance represents first step use energy in insights into green fertilizer production, inspires vision sustainable, modular plants distributed production on farms.