One of the most well-known catalytic processes involving nitrogen compounds is ammonia synthesis via the Haber-Bosch process. This process combines nitrogen (N₂) and hydrogen (H₂) gases over an iron-based catalyst at high temperatures and pressures to produce ammonia. The reaction is: N₂ + 3H₂ ⇌ 2NH₃ This process is vital for producing fertilizers and has a profound impact on global agriculture.