Effect of transition metals doping in magnetic properties of Fe3Se4

Al Aqtash, Nabil; Alsaad, Ahmad; Al-Reyahi, Anas Y.; Zeng, Hao; Sabirianov, Renat F.

doi:10.1016/j.cocom.2023.e00842

Cited by 3 publications

(2 citation statements)

References 29 publications

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“…In contrast, the crystal structure of FeSe 2 presents a much smaller tunnel size (2.05 × 3.58 Å) compared to the other two phases and shows a width very close to the diameter of the Na ion. Moreover, the band gaps for FeSe 2 and FeSe are reported to be 1.0 and 3.0 eV, respectively, indicating relatively good electronic conductivity of these two compounds. − The magnetic Fe 3 Se 4 is reported to be metallic, indicating much superior electronic conductivity than that of the FeSe 2 and FeSe phases . As a result, the Fe 3 Se 4 /CNT composites exhibit the fastest Na intercalation kinetics and therefore the best rate capabilities and the highest materials utilization rate among all these three composites.…”

Section: Resultsmentioning

confidence: 99%

“…These characteristic concentric diffraction rings also match well with the (222), (−114), (013), and (004) planes of Fe 3 Se 4 (JCPDS#73-2021, Figure F). Transition metal-doped atoms typically enter the lattice of Fe 3 Se 4 . For Fe 3 Se 4 /CNT, the superhigh doping content promotes the formation of small-sized subgrains, abundant boundaries, and amorphous regions.…”

Section: Resultsmentioning

confidence: 99%

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Multielement-Doped Fe_xSe_y/Carbon Nanotube Composites for High Performance Sodium-Ion Storage

Chen,

Shi,

et al. 2024

ACS Appl. Nano Mater.

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Fe x Se y -based composites have become very attractive anode materials for sodium-ion batteries due to their excellent electrochemical reversibility and the low price of iron resources. However, the unsatisfactory rate capacities and cycling stabilities continue to stimulate modification studies on synthetic strategies, crystal structure, morphologies, and composition structures. Here, we presented a straightforward synthetic route to a series of multielement-doped Fe x Se y /carbon nanotube (Fe x Se y /CNT) composites containing different ion selenide phases (Fe 3 Se 4 , FeSe 2 , and FeSe) from a single priceless stainless-steel powder. Among them, Fe 3 Se 4 /CNT exhibits the best rate capability and cycling stability with micron-scale sizing (250.0 mAh g −1 at 50 A g −1 and 338.6 mAh g −1 after 1600 cycles at 10 A g −1 ). The excellent sodium-ion storage properties of the Fe 3 Se 4 /CNT electrode could be attributed to the small subgrain size, abundant crystal boundaries, and amorphous regions in the composite structures caused by high-content multielement doping. The performance differences among the as-prepared composites containing various iron selenides lie in their intrinsic crystal structure characteristics. The practical application prospects of the Fe 3 Se 4 /CNT electrodes are also proved. The full cell assembled with Fe 3 Se 4 /CNT and Na 3 V 2 (PO 4 ) 2 F 3 /C displayed a high-rate capability of 368 mAh g −1 at 5 A g −1 and good capacity retention (about 100%) after 150 cycles.

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Section: Resultsmentioning

confidence: 99%

Section: Resultsmentioning

confidence: 99%

Multielement-Doped Fe_xSe_y/Carbon Nanotube Composites for High Performance Sodium-Ion Storage

Chen,

Shi,

et al. 2024

ACS Appl. Nano Mater.

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Magnetocrystalline anisotropy and giant spontaneous magnetostriction in iron selenide Fe3Se4 studied on single crystals

Komarova,

Kazantsev,

Mozgovykh

et al. 2024

Solid State Sciences

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Multi-Element Doped Fexsey/Carbon Nanotube Composites from a Single Precursor and Their High Performances on Sodium-Ion Storage Application

Chen,

Shi,

et al. 2023

Preprint

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Effect of transition metals doping in magnetic properties of Fe3Se4

Cited by 3 publications

References 29 publications

Multielement-Doped Fe_xSe_y/Carbon Nanotube Composites for High Performance Sodium-Ion Storage

Multielement-Doped Fe_xSe_y/Carbon Nanotube Composites for High Performance Sodium-Ion Storage

Magnetocrystalline anisotropy and giant spontaneous magnetostriction in iron selenide Fe3Se4 studied on single crystals

Multi-Element Doped Fexsey/Carbon Nanotube Composites from a Single Precursor and Their High Performances on Sodium-Ion Storage Application

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Effect of transition metals doping in magnetic properties of Fe3Se4

Cited by 3 publications

References 29 publications

Multielement-Doped FexSey/Carbon Nanotube Composites for High Performance Sodium-Ion Storage

Multielement-Doped FexSey/Carbon Nanotube Composites for High Performance Sodium-Ion Storage

Magnetocrystalline anisotropy and giant spontaneous magnetostriction in iron selenide Fe3Se4 studied on single crystals

Multi-Element Doped Fexsey/Carbon Nanotube Composites from a Single Precursor and Their High Performances on Sodium-Ion Storage Application

Contact Info

Product

Resources

About

Multielement-Doped Fe_xSe_y/Carbon Nanotube Composites for High Performance Sodium-Ion Storage

Multielement-Doped Fe_xSe_y/Carbon Nanotube Composites for High Performance Sodium-Ion Storage