Fig. 2: Monitoring NO+ interaction with adsorbates.
From: Biomimetic CO oxidation below −100 °C by a nitrate-containing metal-free microporous system
a In-situ FTIR during sequential CO adsorption (2 Torr) at 100 K on H-SSZ-13 (Si/Al ~12) which was previously reacted with NO2 at RT to form NO+ and NO3−. Excess of NO2 was removed by vacuuming at 10−6 Torr at RT. b In-situ FTIR during sequential NO adsorption (2 Torr) at 100 K on H-SSZ-13 (Si/Al ~12) that was previously reacted with NO2 at RT Excess of NO2 was removed by vacuuming at 10−6 Torr at RT. c In-situ FTIR during 10−7 Torr vacuum applied after B at 100 K. NO leaves Zeo-NO+-NO complex under vacuum, restoring NO+. The zeolite pellet itself was used as an IR background.
