What specific component did Haber identify as crucial for lowering the activation energy barrier to achieve industrially viable speeds?

Answer

Iron-based catalysts

The reaction kinetics remained sluggish even at optimal temperature and pressure; iron-based catalysts, sometimes promoted with other metal oxides, were identified as highly effective at reducing the activation energy required.

What specific component did Haber identify as crucial for lowering the activation energy barrier to achieve industrially viable speeds?
inventionwaterremovalprocessNitrogen