A facile synthesis of CuSe nanosheets for high-performance sodium-ion hybrid capacitors

Chen, Chen; Hu, Qilin; Fan, Yang; Xue, Hongyu; Zhang, Yuning; Yan, Hailong; Lu, Yang; Luo, Yongsong

doi:10.1039/d2ra03206f

Cited by 9 publications

(3 citation statements)

References 47 publications

(66 reference statements)

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“…The third cycle basically coincides with the second cycle, exhibiting the stable reversible conversion reaction of FeSe 2 @NCF electrode during the desertion and insertion respectively, with a high initial coulombic efficiency of 90.3%. Furthermore, the discharge specific capacities display a firstly decreased, then increased and finally stabilized phenomenon as a whole, which may be caused by the activation of electrode materials during the charge and discharge processes [23,24,42]. After 100 cycles, the reversible capacity of 411.4 mAh g −1 still has been obtained (figure S6).…”

Section: Resultsmentioning

confidence: 98%

“…The equivalent circuit model is used to fit the Nyquist plots to analyze the EIS results as shown in figure 6(c), where R s is the resistance of the electrolyte and the battery module, R ct reflects the charge-transfer resistance, and CPE is a constant phase element. The results showed that the R ct decreased from 16.7 Ω before the cycle to 10.6 Ω after 20 cycles, indicative of the activation of the FeSe 2 @NCF electrode and faster charge-transfer rate of the electrode [42]. Furthermore, the diffusion coefficient of Na + (D Na + ) was evaluated by galvanostatic intermittent titration technique (GITT) (figure S9).…”

Section: Resultsmentioning

confidence: 99%

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Ultrafast and ultrastable FeSe₂ embedded in nitrogen-doped carbon nanofibers anode for sodium-ion half/full batteries

Chen,

Hu,

Xue

et al. 2023

Nanotechnology

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Transition metal selenides are considered as promising anode materials for fast-charging sodium-ion batteries due to their high theoretical specific capacity. However, the low intrinsic conductivity, particle aggregation, and large volume expansion problems can severely inhibit the high-rate and long-cycle performance of the electrode. Herein, FeSe2 nanoparticles embedded in nitrogen-doped carbon nanofibers (FeSe2@NCF) have been synthesized using the electrospinning and selenization process, which can alleviate the volume expansion and particle aggregation during the sodiation/desodiation and improve the electrical conductivity of the electrode. The FeSe2@NCF electrode delivers the outstanding specific capacity of 222.3 mAh g-1 at a fast current density of 50 A g-1 and 262.1 mAh g-1 at 10 A g-1 with the 87.8 % capacity retention after 5000 cycles. Furthermore, the Na-ion full cells assembled with pre-sodiated FeSe2@NCF as anode and Na3V2(PO4)3/C as cathode exhibit the reversible specific capacity of 117.6 mAh g-1 at 5 A g-1 with the 84.3 % capacity retention after 1000 cycles. This work provides a promising way for the conversion-based metal selenides for the applications as fast-charging sodium-ion battery anode.

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Section: Resultsmentioning

confidence: 98%

Section: Resultsmentioning

confidence: 99%

Ultrafast and ultrastable FeSe₂ embedded in nitrogen-doped carbon nanofibers anode for sodium-ion half/full batteries

Chen,

Hu,

Xue

et al. 2023

Nanotechnology

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“…The device delivered a capacity of 420 mAh g −1 at 5 A g −1 , had good flexibility and stretchability, retained 95% after 1000 cycles at 2 A g −1 , and the assembled asymmetric device delivered an ED of 5.44 mWh cm −3 at 493.55 mW cm −3 . Chen et al [ 218 ] developed 2D CuSe nanosheet electrodes for Na-ion capacitors through a simple hydrothermal reaction. The CuSe electrode had an initial Coulombic efficiency of 96.7% at 0.1 A g −1 and a capacity of 330 mAh g −1 after 100 cycles and maintained a capacity of 236 mAh g −1 after 3300 cycles at 5 A g −1 with a retention rate of 91.2%.…”

Section: Metal-ion Supercapacitorsmentioning

confidence: 99%

Recent Advances and Strategies in MXene-Based Electrodes for Supercapacitors: Applications, Challenges and Future Prospects

Prabhakar Vattikuti,

Shim,

Rosaiah

et al. 2023

Nanomaterials

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With the growing demand for technologies to sustain high energy consumption, supercapacitors are gaining prominence as efficient energy storage solutions beyond conventional batteries. MXene-based electrodes have gained recognition as a promising material for supercapacitor applications because of their superior electrical conductivity, extensive surface area, and chemical stability. This review provides a comprehensive analysis of the recent progress and strategies in the development of MXene-based electrodes for supercapacitors. It covers various synthesis methods, characterization techniques, and performance parameters of these electrodes. The review also highlights the current challenges and limitations, including scalability and stability issues, and suggests potential solutions. The future outlooks and directions for further research in this field are also discussed, including the creation of new synthesis methods and the exploration of novel applications. The aim of the review is to offer a current and up-to-date understanding of the state-of-the-art in MXene-based electrodes for supercapacitors and to stimulate further research in the field.

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Hybrid catalyst‐assisted synthesis of multifunctional carbon derived from Camellia shell for high‐performance sodium‐ion batteries and sodium‐ion hybrid capacitors

Mao,

Yang,

Yang

et al. 2024

Carbon Neutralization

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Biomass‐derived carbon as energy storage materials have gradually attracted widespread attention due to their low cost, sustainability, and inherent structural advantages. Herein, hard carbon (H‐1200) and porous carbon (PC‐800) for sodium‐ion batteries (SIBs), sodium‐ion capacitors (SICs) half cells and sodium‐ion hybrid capacitors (SIHCs) have been synthesized from the same biomass precursor of Camellia shells through different treatments. H‐1200 synthesized by directly high‐temperature carbonization possesses a rational graphitic layer structure and plentiful heteroatoms. When applied as anode for SIBs, it exhibits a reversible capacity of 365.5 mAh g–1 at 25 mA g–1 and capacity retention 89.0% after 400 cycles at 200 mA g–1. Additionally, PC‐800 prepared by catalytic carbonization of K2C2O4/CaC2O4 hybrid catalyst has a sophisticated porous structure and a high surface area of 2186.9 m2 g–1. When employed as a cathode for SICs, it delivers a maximum capacity 104.2 mAh g–1 at 100 mA g–1 and 35.0 mAh g–1 at 5 A g–1. Furthermore, the all carbon assembled SIHC (H‐1200||PC‐800) using H‐1200 as anode and PC‐800 as cathode, features a broad output voltage range (0.01 ~ 4.1 V), high energy density of 161.5 Wh kg–1, power density of 12896.1 W kg–1, and superior capacity retention of 90.32% after 10000 cycles at 10 A g–1. This research result provide a new horizon for constructing low‐cost and large‐scale production of biomass derived carbon for energy storage materials.

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A facile synthesis of CuSe nanosheets for high-performance sodium-ion hybrid capacitors

Abstract: Due to the low price and abundant reserves of sodium resources, sodium-ion batteries have become the main candidate for the next generation of energy storage equipment, particularly for large-scale grid storage and low-speed electric vehicles.

Cited by 9 publications

References 47 publications

Ultrafast and ultrastable FeSe₂ embedded in nitrogen-doped carbon nanofibers anode for sodium-ion half/full batteries

Ultrafast and ultrastable FeSe₂ embedded in nitrogen-doped carbon nanofibers anode for sodium-ion half/full batteries

Recent Advances and Strategies in MXene-Based Electrodes for Supercapacitors: Applications, Challenges and Future Prospects

Hybrid catalyst‐assisted synthesis of multifunctional carbon derived from Camellia shell for high‐performance sodium‐ion batteries and sodium‐ion hybrid capacitors

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A facile synthesis of CuSe nanosheets for high-performance sodium-ion hybrid capacitors

Abstract: Due to the low price and abundant reserves of sodium resources, sodium-ion batteries have become the main candidate for the next generation of energy storage equipment, particularly for large-scale grid storage and low-speed electric vehicles.

Cited by 9 publications

References 47 publications

Ultrafast and ultrastable FeSe2 embedded in nitrogen-doped carbon nanofibers anode for sodium-ion half/full batteries

Ultrafast and ultrastable FeSe2 embedded in nitrogen-doped carbon nanofibers anode for sodium-ion half/full batteries

Recent Advances and Strategies in MXene-Based Electrodes for Supercapacitors: Applications, Challenges and Future Prospects

Hybrid catalyst‐assisted synthesis of multifunctional carbon derived from Camellia shell for high‐performance sodium‐ion batteries and sodium‐ion hybrid capacitors

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Product

Resources

About

Ultrafast and ultrastable FeSe₂ embedded in nitrogen-doped carbon nanofibers anode for sodium-ion half/full batteries

Ultrafast and ultrastable FeSe₂ embedded in nitrogen-doped carbon nanofibers anode for sodium-ion half/full batteries