In situ generated MWCNT-FeF3·0.33 H2O nanocomposites toward stable performance cathode material for lithium ion batteries

Bensalah, Nasr; Mustafa, Noor

doi:10.1007/s42247-018-00021-5

Cited by 16 publications

(3 citation statements)

References 22 publications

Supporting

Mentioning

Contrasting

Order By: Relevance

“…Although a large number of nanomaterials, such as nanospheres, nanofibers, microspheres, , and hollow yolk-like spheres, have been successfully prepared, they are still far from expectations. The iron-based fluorides with hierarchical structures have attracted attention because of their large space for electrolyte access and relieve the volume effect. − Recently, in situ synthesis of iron-based fluorides/conductive additives nanocomposites have drawn attention. − However, it is difficult to in situ synthesize nanocomposites, which consist of iron-based fluorides with hierarchical structure and conductive additives.…”

Section: Introductionmentioning

confidence: 99%

Hierarchical Mesoporous Iron Fluoride and Reduced Graphene Oxide Nanocomposite as Cathode Materials for High-Performance Sodium-Ion Batteries

Zhang

et al. 2020

ACS Appl. Mater. Interfaces

View full text Add to dashboard Cite

Sodium-ion batteries have been considered as one of ideal power sources for energy storage system. However, the choice of cathode material with good cycling stability and high capacity is limited. Herein, a nanocomposite of hierarchical mesoporous iron fluoride and reduced graphene oxide is prepared by an in situ approach. The as-prepared nanocomposite exhibits remarkably high discharge specific capacity of 227.5 mAh/g at 0.1C. Specifically, the discharge specific capacity of the sample still remains 87.5 mAh/g at a high rate of 15C after the 100th cycle. The electrochemical impedance spectroscopy (EIS) and galvanostatic intermittent titration technique (GITT) measurements show that the addition of reduced graphene oxide can effectively reduce the charge transfer resistance and enhance the Na + diffusion rate in the FeF 3 •0.33H 2 O nanoparticles. The structural changes of FeF 3 •0.33H 2 O is further investigated by ex-situ XRD, XPS, and ex situ high-resolution transmission electron microscopy.

show abstract

Section: Introductionmentioning

confidence: 99%

Hierarchical Mesoporous Iron Fluoride and Reduced Graphene Oxide Nanocomposite as Cathode Materials for High-Performance Sodium-Ion Batteries

Zhang

et al. 2020

ACS Appl. Mater. Interfaces

View full text Add to dashboard Cite

show abstract

“…Electrochemical impedance spectroscopy (EIS) was performed to investigate charge-transfer activity as well as interfacial properties of the electrodes. Te EIS measurements were recorded at a potential of 3 V at a frequency range of 10 5 -10 −2 Hz [30]. Te Nyquist plots of (a) LMO, (b) LMO-FeMg, and (c) LMO-FeMg/MWCNT are shown in Figure 12.…”

Section: Electrochemical Measurementsmentioning

confidence: 99%

Boosting LiMn2O4 Diffusion Coefficients and Stability via Fe/Mg Doping and MWCNT Synergistically Modulating Microstructure

Ross,

Willenberg,

Juqu

et al. 2024

Journal of Nanotechnology

View full text Add to dashboard Cite

The dissolution of manganese and its deposition on the anode surface cause poor cycling stability in lithium-ion batteries. To alleviate these issues, this study probes the electrochemical activity of highly crystalline and cation-adjusted lithium manganese oxide (LMO) carbon spinel composite obtained via a modified sol-gel synthesis procedure. The pristine LMO cathode was functionalized with a Fe and Mg alloy and fused with purified multiwalled carbon nanotubes (MWCNTs) to form a catalytically stabilized LiMn1.98Fe0.01Mg0.01O4/MWCNT (LMO-FeMg/MWCNT) framework. High-resolution SEM analysis showed well-dispersed particles in the nanometer size range. The electrochemical characteristics of the novel composite materials yielded favourable electrochemical results with diffusion coefficients of 1.91 × 10−9 cm2·s−1 and 5.83 × 10−10 cm2·s−1 for LMO-FeMg and LMO-FeMg/MWCNT, respectively. This improvement was supported by impedance studies which showed a considerable Rct reduction of 0.27 Ω and 0.71 Ω. The cation stabilized system outperformed the pristine LMO material with specific capacities around 145 mAh·g−1, due to an enhancement in electrochemical activity and structural stability.

show abstract

“…However, FeF 3 •0.33H 2 O usually exhibits a low electron and ionic conductivity due to the strong ionic bond between Fe and F [10]. One strategy is to mix iron fluoride with conductive carbon materials, such as graphite [11], carbon nanotubes [12,13], acetylene black [14] and reduced graphite oxide [15,16]. Although conductive carbon can improve the conductivity of the electrode, it is difficult to effectively establish the close contact between FeF 3 particles and carbon, and the synthesis routes of FeF 3 /C materials are complex and costly [17].…”

Section: Introductionmentioning

confidence: 99%

Facile preparation of hierarchical micro-nano FeF₃·0.33H₂O by a one-pot method with dual surfactants

Zeng

Chen

et al. 2021

Nanotechnology

View full text Add to dashboard Cite

To prepare a hierarchical micro-nano structure FeF3·0.33H2O simply and economically, a one-pot method with dual surfactants was used. Scanning electron microscopy and a Fourier transformation infrared spectrometer revealed that polyvinyl pyrrolidone (PVP) regulates the morphology of the material, while cetyltrimethylammonium bromide (CTAB) can reshape FF@PVP, it can not only remove PVP at room temperature, but also obtain a hierarchical micro-nano structure. The electrochemical results show that the hierarchical micro-nano structure FF(1.5CTAB 0.5PVP) has the best electrochemical performance. It maintained a high specific capacity of 109.4 mAh g−1 after 100 cycles at 1 C. In particular, under the ultra-high rate discharge of 20 C, the ultra-high specific discharge capacity of 66.4 mAh g−1 was reached. The FF(1.5CTAB 0.5PVP)’s excellent electrochemical performance is mainly due to a large contact area between the electrolyte and active materials.

show abstract

In situ generated MWCNT-FeF3·0.33 H2O nanocomposites toward stable performance cathode material for lithium ion batteries

Cited by 16 publications

References 22 publications

Hierarchical Mesoporous Iron Fluoride and Reduced Graphene Oxide Nanocomposite as Cathode Materials for High-Performance Sodium-Ion Batteries

Hierarchical Mesoporous Iron Fluoride and Reduced Graphene Oxide Nanocomposite as Cathode Materials for High-Performance Sodium-Ion Batteries

Boosting LiMn2O4 Diffusion Coefficients and Stability via Fe/Mg Doping and MWCNT Synergistically Modulating Microstructure

Facile preparation of hierarchical micro-nano FeF₃·0.33H₂O by a one-pot method with dual surfactants

Contact Info

Product

Resources

About

In situ generated MWCNT-FeF3·0.33 H2O nanocomposites toward stable performance cathode material for lithium ion batteries

Cited by 16 publications

References 22 publications

Hierarchical Mesoporous Iron Fluoride and Reduced Graphene Oxide Nanocomposite as Cathode Materials for High-Performance Sodium-Ion Batteries

Hierarchical Mesoporous Iron Fluoride and Reduced Graphene Oxide Nanocomposite as Cathode Materials for High-Performance Sodium-Ion Batteries

Boosting LiMn2O4 Diffusion Coefficients and Stability via Fe/Mg Doping and MWCNT Synergistically Modulating Microstructure

Facile preparation of hierarchical micro-nano FeF3·0.33H2O by a one-pot method with dual surfactants

Contact Info

Product

Resources

About

Facile preparation of hierarchical micro-nano FeF₃·0.33H₂O by a one-pot method with dual surfactants