XTEM and XPS studies of plasma nitrocarburising layers on 0.45% C steel

Iron phthalocyanine derived Fe1/h-BN single atom catalysts for CO2 hydrogenation

“…6b). These values are close to the values of Fe in iron nitride, 66 Fe 2+ in FeO, and Fe 3+ in Fe 2 O 3 oxide 67 phases. Since we did not observe the formation of crystalline phases, based on the similarity of the local coordination environment of iron in the corresponding nitride and oxide bulk phases, these components were assigned to iron phthalocyanine, which is weakly adsorbed on the surface and also chemisorbed through BNO-Fe and BO-Fe bonds.…”

Structure and Properties of the Glow Discharge Nitrided Layers Produced on Austenitic Steel

“…Frequently, these two phases occur in a lamellar form (bands 10 to 50nm wide) with even smaller precipitates present within the bands. Similar band shaped structures have been observed by other investigators [1,3,7,8,11]. Some of the authors suggest that these bands are associated with the stacking faults and dislocations [9] formed as a result of the super-saturation with nitrogen that take place during nitriding.…”

Ball-Milled Processed, Selective Fe/h-BN Nanocatalysts for CO2 Hydrogenation

“…Deconvolution of the peak into three components at 712.7, 710.8, and 708.8 eV shows the presence of the Fe 3+ , Fe 2+ , and Fe in the form of nitride. 48 The N 1s peak of the sample produced via H 2 reduction was deconvoluted into three components centered at 397.9, 398.7, and 400.1 eV corresponding to nitrogen surrounded by boron atoms, 41 nitrogen bonded with boron and oxygen, 49 and nitrogen in the B−N−H environment. 41 An increase in the intensity of the 400.1 eV peak indicates an increase in the contribution from the B−N−H groups.…”

“…Further increase in grinding speed led to broadening of the Fe 2p peak. Deconvolution of the peak into three components at 712.7, 710.8, and 708.8 eV shows the presence of the Fe 3+ , Fe 2+ , and Fe in the form of nitride …”