Lightning-inspired method makes ammonia with no catalyst

A picture illustrating using plasma as an electrode

Source: © J Toth and M Sankaran

Plasma-enabled electrolysis produces the vital gas in high purity – but also consumes much more energy than current methods

US researchers have invented a way to make ammonia, vital in producing fertilisers to feed Earth’s 7.7 billion humans, without relying on catalysts as today’s industrial methods do. The team, led by Mohan Sankaran and Julie Renner at Case Western Reserve University in Cleveland make ammonia electrolytically from water and nitrogen.