Soil to society: Red-mud-derived iron oxide electrocatalysts for circular nitrogen upcycling via green ammonia production

Key Points

• The aim is to valorize red mud waste for creating electrocatalysts that facilitate nitrogen upcycling.
• Utilized tannic acid chelation to extract iron from red mud waste.
• Developed a Catalyst Portfolio of iron-based electrocatalysts for nitrogen conversion.
• Conducted experiments to evaluate the electrochemical conversion of nitrate to ammonia.
• Produced Fe-based electrocatalysts that effectively convert nitrate to ammonia.
• Achieved dual upcycling of iron recovery and nitrogen conversion.
• Enhanced efficiency in creating green ammonia from industrial waste material.