Figure 3.

Catalytic N₂‐to‐NH₃ conversion analysis. a) Comparison of N₂ adsorption on surface of different materials. Data from N₂‐TPD profiles are shown for STRs (green), Te (blue), and Se (gray). b) Charge density difference of N₂‐adsorbed TeO₂ (I), TeSeO (II), and TeSeO (III). Red and blue isosurfaces, respectively, represent charge accumulation and depletion in space. c) In situ DRIFT spectra of STRs after treatment with N₂/H₂O at room temperature. d) Illustration of free energy diagram for Te‐containing samples. Te, O, Se, and H atoms are shown in gold, blue, and white, respectively.