Transition metal oxides and transition metal sulfides as cathodes for magnesium-ion batteries: current status and modification strategies

Li, Weizheng; Huang, Chengde

doi:10.1016/j.mtener.2024.101510

Materials Today Energy

2024

DOI: 10.1016/j.mtener.2024.101510

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Transition metal oxides and transition metal sulfides as cathodes for magnesium-ion batteries: current status and modification strategies

Weizheng Li,

Chengde Huang

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2024

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Cited by 2 publications

References 141 publications

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Uniformly Dispersed Ultrasmall Fe(Co)Ni Alloy Nanoparticles Embedded in Thin‐Walled Carbon Nanotubes as High‐Performance Anode Materials for Lithium‐Ion Battery

Zhang,

Tang

et al. 2024

Energy Tech

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Fe‐group nanoalloys are one of the most promising next‐generation anodes for lithium‐ion batteries (LIBs) due to their low cost, high capacity, excellent electrical conductivity, and lithium‐storage capability. However, the difficulties in constructing nanostructures and the tendency for alloy nanoparticles to agglomerate limit their practical application. Herein, a hybrid embedding structure with microporosity–mesoporosity is constructed by using thin‐walled carbon nanotubes (CNT) as the support. Within this structure, ultrasmall FeNi/CoNi alloy nanoparticles (10 nm) are uniformly embedded into the walls of thin‐walled CNTs (FNNT/CNNT). Benefit from this hybrid structure is that the agglomeration of FNNT/CNNT is effectively suppressed, leading to excellent cycling stability and high capacity (596.6 mA h g−1 for FNNT and 557.1 mA h g−1 for CNNT after 300 cycles at 1 A g−1) as anodes for LIBs. In the present method, a reference can be provided for the preparation of metal alloy/carbon nanocomposites.

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Uniformly Dispersed Ultrasmall Fe(Co)Ni Alloy Nanoparticles Embedded in Thin‐Walled Carbon Nanotubes as High‐Performance Anode Materials for Lithium‐Ion Battery

Zhang,

Tang

et al. 2024

Energy Tech

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Unveiling the influence of dopants on structural, defect chemistry, morphological and optical characteristics of NiO nanostructures

Kongbrailatpam,

Singh,

Sharma

et al. 2024

Phys. Scr.

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In this paper, undoped and doped (Fe, Co, and Fe-Co) nickel oxide (NiO) nanostructures have been synthesized using the co-precipitation method. Prepared samples were characterized for the structural, compositional, morphological, and optical properties using X-ray diffraction, scanning electron microscopy (SEM), Energy dispersive spectroscopy (EDS), UV-visible spectroscopy, and photoluminescence spectroscopy. Structural analysis confirmed the single cubic phase formation of undoped and doped samples. Defect chemistry showed that Fe-Co co-doped NiO possesses a lower density of defects than other samples. SEM results revealed the aggregation of particles. EDS results confirmed the presence of Ni, O, Fe and Co in the respective undoped and doped samples. Optical analysis revealed the band edge shifts with incorporation of dopants in the NiO crystal lattice confirmed the variation of band gap energy. Emission peaks were observed in the UV and visible region. Incorporation of dopants in the crystal lattice cause the variation of emission centres. Surface oxygen vacancies and imperfections significantly impact the emission characteristics of NiO. Variable spectral response of NiO with dopant incorporation has potential for optoelectronic applications.

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Transition metal oxides and transition metal sulfides as cathodes for magnesium-ion batteries: current status and modification strategies

Cited by 2 publications

References 141 publications

Uniformly Dispersed Ultrasmall Fe(Co)Ni Alloy Nanoparticles Embedded in Thin‐Walled Carbon Nanotubes as High‐Performance Anode Materials for Lithium‐Ion Battery

Uniformly Dispersed Ultrasmall Fe(Co)Ni Alloy Nanoparticles Embedded in Thin‐Walled Carbon Nanotubes as High‐Performance Anode Materials for Lithium‐Ion Battery

Unveiling the influence of dopants on structural, defect chemistry, morphological and optical characteristics of NiO nanostructures

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