Fig. 6: The chemical looping synthesis of octylamines from N2 with FexN as nitrogen carrier.
From: Chemical looping synthesis of amines from N2 via iron nitride as a mediator
a XPS spectra of as-prepared FexN and spent FexN, b XRD patterns of as-prepared FexN and commercial Fe, c Organonitrogen products amount and organonitrogen yield (N basis) within 4 cycles of the N2-to-amines synthesis system. The as-prepared FexN was prepared by ball milling in N2 (6 bar) at rotation speed of 2000 r.p.m. for 30 h. Octylamine production reaction condition: 1 mL octanol, 5 g FexN, 10 bar H2, 250 °C, 6 h. Organonitrogen yield [%] = the number of organonitrogen products / the amount of input N in FexN.
