Investigation of structure and magnetic properties of the as-deposited and post-annealed iron nitride films by reactive facing-target sputtering

Feng, X.P.; Mi, Wenbo; Bai, Haili

doi:10.1016/j.apsusc.2011.03.112

Cited by 22 publications

(6 citation statements)

References 36 publications

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“…It is probably attributed to the reduction reaction of Fe 2 O 3 and melamine, where the melamine plays a role of reductant at a high temperature . As shown in the Figure b, the dominant peaks of Fe 2 N get closer to peak of Fe−Mn alloy from Fe 3 Mn 1 /N‐CNTs‐50 to Fe 3 Mn 1 /N‐CNTs‐200, because part of Fe 2 N phases are probably decomposed to metallic Fe under the N 2 atmosphere during the process of annealing …”

Section: Resultsmentioning

confidence: 81%

Restructured Fe−Mn Alloys Encapsulated by N‐doped Carbon Nanotube Catalysts Derived from Bimetallic MOF for Enhanced Oxygen Reduction Reaction

et al. 2018

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A set of novel catalysts FeMn/N‐CNTs that partly maintain the core‐shell structure have been prepared successfully by calcination of analogous MOF‐74, which has bimetallic species (Fe and Mn) and a cheap organic ligand (2, 5‐dihydroxylbenzoic acid, DHBA) with melamine as additional nitrogen source. These catalysts exhibit a distinctive microstructure of Fe−Mn alloys surrounded by N‐doped carbon nanotubes (CNTs). Electrochemical methods have been employed to investigate their activity in oxygen reduction reaction (ORR) in alkaline solution. The highest ORR performance of Fe3Mn1/N‐CNTs‐100 shows that the half wave potential is at 0.865 V and the kinetic current density (at 0.9 V) is 1.447 mA cm−2, which are higher than those of commercial Pt/C (0.855 V, 0.946 mA cm−2). In addition, Fe3Mn1/N‐CNTs‐100 is much more durable than commercial Pt/C under the conditions tested. The highly efficient ORR performance may be attributed to the unique microstructure and large surface area with appropriate pore size, as well as to the synergistic effects between the pyridinic N species and the Fe−Nx species that play important roles in ORR in alkaline solution. However, in acid medium, only Fe−Nx species catalyze ORR and pyridinic N species are limited to work as the active sites. This study may prompt others to explore the development of heteroatom‐doped CNTs surrounding particles as efficient catalyst for ORR and fuel cell applications.

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Section: Resultsmentioning

confidence: 81%

Restructured Fe−Mn Alloys Encapsulated by N‐doped Carbon Nanotube Catalysts Derived from Bimetallic MOF for Enhanced Oxygen Reduction Reaction

et al. 2018

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“…[1][2][3][4][5][6][7] Among them, g 0 -Fe 4 N has received considerable attention as a ferromagnetic electrode. [1][2][3][4][5][6][7] Among them, g 0 -Fe 4 N has received considerable attention as a ferromagnetic electrode.…”

Section: Introductionmentioning

confidence: 99%

Scaling of anomalous Hall effects in facing-target reactively sputtered Fe₄N films

Zhang

Wang

et al. 2015

Phys. Chem. Chem. Phys.

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The anomalous Hall effect (AHE) in the reactively sputtered epitaxial and polycrystalline γ'-Fe4N films is investigated systematically. The Hall resistivity is positive over the entire temperature range. The magnetization, carrier density and grain boundary scattering have a major impact on the AHE scaling law. The scaling exponent γ in the conventional scaling of ρAH ∝ ρ(γ)(xx) is larger than 2 in both the epitaxial and polycrystalline γ'-Fe4N films. Although γ > 2 has been found in heterogeneous systems due to the effects of the surface and interface scattering on AHE, γ > 2 is not expected in homogenous epitaxial systems. We demonstrated that γ > 2 results from residual resistivity (ρxx0) in γ'-Fe4N films. Furthermore, the side-jump and intrinsic mechanisms are dominant in both epitaxial and polycrystalline samples according to the proper scaling relation.

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“…Among the ferromagnetic iron nitride phases, α″-Fe 16 N 2 is notable for its giant magnetic moment [3], while the γ′-Fe 4 N and ε-Fe 3 − x N phases have excellent thermal stability and large spin polarizations [4][5][6]. All of them have attracted much attention for possible applications in magnetic storage and magnetic functional devices [7][8][9].…”

Section: Introductionmentioning

confidence: 99%

Crystallographic phases and magnetic properties of iron nitride films

Liu

Zhao

et al. 2015

Thin Solid Films

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Investigation of structure and magnetic properties of the as-deposited and post-annealed iron nitride films by reactive facing-target sputtering

Cited by 22 publications

References 36 publications

Restructured Fe−Mn Alloys Encapsulated by N‐doped Carbon Nanotube Catalysts Derived from Bimetallic MOF for Enhanced Oxygen Reduction Reaction

Restructured Fe−Mn Alloys Encapsulated by N‐doped Carbon Nanotube Catalysts Derived from Bimetallic MOF for Enhanced Oxygen Reduction Reaction

Scaling of anomalous Hall effects in facing-target reactively sputtered Fe₄N films

Crystallographic phases and magnetic properties of iron nitride films

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Investigation of structure and magnetic properties of the as-deposited and post-annealed iron nitride films by reactive facing-target sputtering

Cited by 22 publications

References 36 publications

Restructured Fe−Mn Alloys Encapsulated by N‐doped Carbon Nanotube Catalysts Derived from Bimetallic MOF for Enhanced Oxygen Reduction Reaction

Restructured Fe−Mn Alloys Encapsulated by N‐doped Carbon Nanotube Catalysts Derived from Bimetallic MOF for Enhanced Oxygen Reduction Reaction

Scaling of anomalous Hall effects in facing-target reactively sputtered Fe4N films

Crystallographic phases and magnetic properties of iron nitride films

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Scaling of anomalous Hall effects in facing-target reactively sputtered Fe₄N films