Insights into the nitridation of zero-valent iron nanoparticles for the facile synthesis of iron nitride nanoparticles

Abstract

The process of nitridation of zero-valent iron nanoparticles (ZVINPs) is investigated by employing two different synthesis strategies such as solvothermal method and gas diffusion using N2 and NH3.

Noble-Metal-Free Iron Nitride/Nitrogen-Doped Graphene Composite for the Oxygen Reduction Reaction

“…Although it refers to an iron oxide phase, it was not detected in the XRD patterns (Figure a), as most likely, only a thin layer was formed due to surface oxidation. Similar findings were reported in other systems too. , The proof of nitride formation can be seen in Figure b, though. Since the N 1s peak of iron nitride was recorded in the absence of graphene, it was deconvoluted into three features at binding energies of 398.6, 400.6, and 404.1 eV.…”

“…Similar findings were reported in other systems too. 37,44 The proof of nitride formation can be seen in Figure 3b, though. Since the N 1s peak of iron nitride was recorded in the absence of graphene, it was deconvoluted into three features at binding energies of 398.6, 400.6, and 404.1 eV.…”

“…The first peak corresponds to the bonding between the nitrogen and iron atoms, while the second and third peaks indicate the presence of adsorbed ammonia and nitrogen oxide species, respectively. 44 The iron/nitrogen ratio in iron nitride was calculated to be 1.7:1. This agrees well with the XRD analysis above and confirms the formation of the FeN–Fe 2 N mixture.…”

“…Since the N 1s peak of iron nitride was recorded in the absence of graphene, it was deconvoluted into three features at binding energies of 398.6, 400.6, and 404.1 eV. The first peak corresponds to the bonding between the nitrogen and iron atoms, while the second and third peaks indicate the presence of adsorbed ammonia and nitrogen oxide species, respectively . The iron/nitrogen ratio in iron nitride was calculated to be 1.7:1.…”

Vitamin Derived Nitrogen Doped Carbon Nanotubes for Efficient Oxygen Reduction Reaction and Arsenic Removal from Contaminated Water

“…Of these two peaks, the Fe 2p 3/2 is much narrower and stronger when compared to Fe 2p 1/2 . The Fe 2p 3/2 peak can further be deconvoluted to three peaks centred at 708.9, 710.2, and 711.8 eV which correspond to iron-ligand covalency [31], Fe-N bond [32], and iron oxynitride moieties [33] respectively. The deconvolution of Fe 2p 1/2 peaks shows two peaks at 722.7 and 724.4 eV, which correspond to iron carbide clusters [34] and Fe 3 C [35], respectively.…”