Extended Data Fig. 1: Comparison of N1s over ruthenium under pure N2 and low-pressure condition.
From: Operando probing of the surface chemistry during the Haber–Bosch process
The spectra of N1s on \({\rm{Ru}}(10\bar{1}3)\) under 200 mbar 1:3 N2:H2 gas mixture at 423 K and the thickest nitride film made on the same surface at 623 K. The black lines show the offset between the NH species in red in the top spectra to N on terraces and light green in the bottom spectra cumulating to 150 meV.
