Mn doping on Mössbauer spectroscopy of maricite-NaFePO4 as cathode material

Seo, Jae Yeon; Choi, Hyunkyung

doi:10.1007/s10967-021-07676-1

Cited by 4 publications

(3 citation statements)

References 25 publications

Supporting

Mentioning

Contrasting

Order By: Relevance

“…The presence of Mn (or F) was detected in NFPP‐Mn (or NFPP‐F) and NFPP‐Mn‐F, reinforcing that Mn 2+ (or F − ) was successfully incorporated in the samples mentioned. [ 11,16 ]…”

Section: Resultsmentioning

confidence: 99%

“…The presence of Mn (or F) was detected in NFPP-Mn (or NFPP-F) and NFPP-Mn-F, reinforcing that Mn 2+ (or F − ) was successfully incorporated in the samples mentioned. [11,16] The morphology and element distribution of the prepared NFPP, NFPP-Mn, NFPP-F, and NFPP-Mn-F samples were investigated using scanning electron microscopy (SEM), energy dispersive spectroscopy (EDS), and transmission electron microscopy (TEM) technologies (Figure 1c,d; Figures S3,S4, Supporting Information). The SEM results showed all four samples are microspheres with a particle size of ≈5 μm.…”

Section: Materials Characterizationsmentioning

confidence: 99%

See 1 more Smart Citation

Optimizing the Electron Spin States of Na₄Fe₃(PO₄)₂P₂O₇ Cathodes via Mn/F Dual‐Doping for Enhanced Sodium Storage

Xi,

Wang,

Wang

et al. 2023

Adv Funct Materials

View full text Add to dashboard Cite

A NASICON‐type Mn/F dual‐doping Na4Fe3(PO4)2P2O7 cathode material is successfully synthesized via a spray drying method. A medium‐spin of Fe is measured by DFT calculation, X‐ray absorption near edge structure (XANES), temperature‐dependent magnetization susceptibility (M−T) measurement, and electron paramagnetic resonance (EPR) tests. It indicates that the eg orbital occupation of Fe2+ can be finely regulated, thus optimizing the bond strength between the oxidation and reduction processes. Furthermore, from UV−vis DRS and four‐point probe conductivity measurements, it can be seen that, after adjusting the electron spin states, the band gap of the material has decreased from 1.01 to 0.80 eV, and the electronic conductivity has increased from 8.5 to 24.4 µS cm−1, thereby leading to competitive electrochemical performance. The as‐optimized Na4Fe3(PO4)2P2O7 displays both excellent rate performance (121.0 and 104.9 mAh g−1 at 0.1 C and 5 C, respectively) and outstanding cycling stability (88.5% capacity retention after 1000 cycles at 1 C). The results indicate that this low‐cost Mn/F dual‐doping Na4Fe3(PO4)2P2O7 cathode can be a competitive candidate material for sodium‐ion batteries.

show abstract

“…The presence of Mn (or F) was detected in NFPP‐Mn (or NFPP‐F) and NFPP‐Mn‐F, reinforcing that Mn 2+ (or F − ) was successfully incorporated in the samples mentioned. [ 11,16 ]…”

Section: Resultsmentioning

confidence: 99%

Section: Materials Characterizationsmentioning

confidence: 99%

Optimizing the Electron Spin States of Na₄Fe₃(PO₄)₂P₂O₇ Cathodes via Mn/F Dual‐Doping for Enhanced Sodium Storage

Xi,

Wang,

Wang

et al. 2023

Adv Funct Materials

View full text Add to dashboard Cite

show abstract

“…The breakthrough study shows that the nanoscale maricite NaMPO 4 converts to the amorphous phase MnPO 4 during the electrochemical process, thus exhibiting sodium storage reversibility. Moreover, replacing part of Mn with Fe is a development direction for this material [25,90,91] . Mn-based phosphates based on NASICONtype Na 3 V 2 (PO 4 ) 3 derivatives are one of the current research hotspots.…”

Section: Phosphatesmentioning

confidence: 99%

Manganese‐based polyanionic cathodes for sodium‐ion batteries

Niu

Zhao

2023

Carbon Neutralization

View full text Add to dashboard Cite

Owing to abundant resources and low cost, sodium‐ion batteries (SIBs) are sweeping the world at a rapid pace. The cathode is the key to determining the energy density of the battery, and polyanionic compounds have become a representative class of cathode materials due to their stable three‐dimensional framework structure, high operating voltage, and good safety. Vanadium‐based and iron‐based polyanionic compounds are highly regarded in academic communities, but environmental hazards or low energy densities have once overshadowed them in the practical arena. In contrast, manganese (Mn)‐based polyanion is one of the potential candidates in terms of cost, voltage, and environmental friendliness, besides, many noteworthy advances have been recorded in recent years. This review summarizes the current research progress of Mn‐based polyanions and discusses the challenges they face while looking forward to the future development of such materials and ideas to solve the key problems. It is expected to have a positive effect, that is, to attract more practitioners to focus on the practical way out of such materials.

show abstract

NaFePO4 for sodium-ion batteries: Mechanism, synthesis and optimization strategies toward commercialization

Liao,

Zhang,

Zheng

et al. 2024

Energy Storage Materials

View full text Add to dashboard Cite

Mn doping on Mössbauer spectroscopy of maricite-NaFePO4 as cathode material

Cited by 4 publications

References 25 publications

Optimizing the Electron Spin States of Na₄Fe₃(PO₄)₂P₂O₇ Cathodes via Mn/F Dual‐Doping for Enhanced Sodium Storage

Optimizing the Electron Spin States of Na₄Fe₃(PO₄)₂P₂O₇ Cathodes via Mn/F Dual‐Doping for Enhanced Sodium Storage

Manganese‐based polyanionic cathodes for sodium‐ion batteries

NaFePO4 for sodium-ion batteries: Mechanism, synthesis and optimization strategies toward commercialization

Contact Info

Product

Resources

About

Mn doping on Mössbauer spectroscopy of maricite-NaFePO4 as cathode material

Cited by 4 publications

References 25 publications

Optimizing the Electron Spin States of Na4Fe3(PO4)2P2O7 Cathodes via Mn/F Dual‐Doping for Enhanced Sodium Storage

Optimizing the Electron Spin States of Na4Fe3(PO4)2P2O7 Cathodes via Mn/F Dual‐Doping for Enhanced Sodium Storage

Manganese‐based polyanionic cathodes for sodium‐ion batteries

NaFePO4 for sodium-ion batteries: Mechanism, synthesis and optimization strategies toward commercialization

Contact Info

Product

Resources

About

Optimizing the Electron Spin States of Na₄Fe₃(PO₄)₂P₂O₇ Cathodes via Mn/F Dual‐Doping for Enhanced Sodium Storage

Optimizing the Electron Spin States of Na₄Fe₃(PO₄)₂P₂O₇ Cathodes via Mn/F Dual‐Doping for Enhanced Sodium Storage