V3Se4 embedded within N/P co-doped carbon fibers for sodium/potassium ion batteries

Xu, Lihong; Guo, Wen-Ti; Ling, Zeng; Xia, Xinshu; Wang, Yiyi; Xiong, Peixun; Chen, Qinghua; Zhang, Jianmin; Wei, Mingdeng; Qian, Qingrong

doi:10.1016/j.cej.2021.129607

Cited by 101 publications

(52 citation statements)

References 69 publications

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“…For the Sb 3d spectra (Figure 2f), the existence of the oxidation state of Sb 3 + can be proven by the peaks observed at 539.2 eV (Sb 3d 3/ 2 ) and 529.9 eV (Sb 3d 5/2 ), and the peak set at 531.5 eV is indexed to O 1s, demonstrating that the surface of the material is partially oxidized. [22,48,49] The C 1s spectrum (Figure S6) can be fitted as C=O bonds (288.9 eV), CÀ S bonds or CÀ N bonds (286.6 eV), C=C bonds (285.3 eV), and CÀ C bonds (284.6 eV), [50] which are consistent with the results of FTIR and Raman analyses. All the above results indicate that the BiSbS x @SPAN sample is composed of Bi 3.64 Sb 4.36 S 12.00 and SPAN.…”

Section: Resultssupporting

confidence: 84%

Structure Engineering of BiSbS_x Nanocrystals Embedded within Sulfurized Polyacrylonitrile Fibers for High Performance of Potassium‐Ion Batteries

Liu

Lin

et al. 2022

Chemistry A European J

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Potassium-ion batteries (PIBs) are regarded as promising candidates in next-generation energy storage technology; however, the electrode materials in PIBs are usually restricted by the shortcomings of large volume expansion and poor cycling stability stemming from a high resistance towards diffusion and insertion of large-sized K ions. In this study, BiSbS x nanocrystals are rationally integrated with sulfurized polyacrylonitrile (SPAN) fibres through electrospinning technology with an annealing process. Such a unique structure, in which BiSbS x nanocrystals are embedded inside the SPAN fibre, affords multiple binding sites and a short diffusion length for K + to realize fast kinetics. In addition, the molecular structure of SPAN features robust chemical interactions for stationary diffluent discharge products. Thus, the electrode demonstrates a superior potassium storage performance with an excellent reversible capacity of 790 mAh g À 1 (at 0.1 A g À 1 after 50 cycles) and 472 mAh g À 1 (at 1 A g À 1 after 2000 cycles). It's one of the best performances for metal dichalcogenides anodes for PIBs to date. The unusual performance of the BiSbS x @SPAN composite is attributed to the synergistic effects of the judicious nanostructure engineering of BiSbS x nanocrystals as well as the chemical interaction and confinement of SPAN fibers.

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Section: Resultssupporting

confidence: 84%

Structure Engineering of BiSbS_x Nanocrystals Embedded within Sulfurized Polyacrylonitrile Fibers for High Performance of Potassium‐Ion Batteries

Liu

Lin

et al. 2022

Chemistry A European J

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“…N 1 s consists of four peaks located at 398.5, 399.3, 400.8 and 403.5 eV, correlating to pyridinic-N, graphitic-N, pyrrolic-N and oxidized-N, respectively ( Figure 4 c) [ 36 ]. Generally, pyridinic-N and pyrrolic-N can create defects and provide electroactive sites, which contribute to ion storage [ 37 , 38 ]. Moreover, graphitic-N is also beneficial for improving the electronic conductivity of carbon materials.…”

Section: Resultsmentioning

confidence: 99%

B, O and N Codoped Biomass-Derived Hierarchical Porous Carbon for High-Performance Electrochemical Energy Storage

et al. 2022

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High specific surface area, reasonable pore structure and heteroatom doping are beneficial to enhance charge storage, which all depend on the selection of precursors, activators and reasonable preparation methods. Here, B, O and N codoped biomass-derived hierarchical porous carbon was synthesized by using KCl/ZnCl2 as a combined activator and porogen and H3BO3 as both boron source and porogen. Moreover, the cheap, environmentally friendly and heteroatom-rich laver was used as a precursor, and impregnation and freeze-drying methods were used to make the biological cells of laver have sufficient contact with the activator so that the layer was deeply activated. The as-prepared carbon materials exhibit high surface area (1514.3 m2 g−1), three-dimensional (3D) interconnected hierarchical porous structure and abundant heteroatom doping. The synergistic effects of these properties promote the obtained carbon materials with excellent specific capacitance (382.5 F g−1 at 1 A g−1). The symmetric supercapacitor exhibits a maximum energy density of 29.2 W h kg−1 at a power density of 250 W kg−1 in 1 M Na2SO4, and the maximum energy density can reach to 51.3 W h kg−1 at a power density of 250 W kg−1 in 1 M BMIMBF4/AN. Moreover, the as-prepared carbon materials as anode for lithium-ion batteries possess high reversible capacity of 1497 mA h g−1 at 1 A g−1 and outstanding cycling stability (no decay after 2000 cycles).

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“…However, in consideration of the dissolution of MBMs via a disproportion reaction and the poor reversible capacity of PBAs, vanadium-based materials have become promising cathodes for secondary batteries, such as sodium/potassium/zinc ion batteries, owing to the multilayered lattice structure and multi-valence states of vanadium. 5,6 Since the bi-layered V 2 O 5 •nH 2 O with pre-intercalated Zn 2+ first served as a cathode for ZIBs in 2016, plenty of cation pre-intercalated vanadium-based oxides have been prepared. For instance, Deng et al synthesized a Mg 0.1 V 2 O 5 •nH 2 O nanobelt and 3 M Zn(CF 3 SO 3 ) 2 polyacrylamide, which were used as the cathode and gel electrolyte, respectively.…”

Section: Introductionmentioning

confidence: 99%

Co-intercalation strategy of constructing partial cation substitution of ammonium vanadate {(NH₄)₂V₆O₁₆} for stable zinc ion storage

Sun

Dong

et al. 2022

Dalton Trans.

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V3Se4 embedded within N/P co-doped carbon fibers for sodium/potassium ion batteries

Cited by 101 publications

References 69 publications

Structure Engineering of BiSbS_x Nanocrystals Embedded within Sulfurized Polyacrylonitrile Fibers for High Performance of Potassium‐Ion Batteries

Structure Engineering of BiSbS_x Nanocrystals Embedded within Sulfurized Polyacrylonitrile Fibers for High Performance of Potassium‐Ion Batteries

B, O and N Codoped Biomass-Derived Hierarchical Porous Carbon for High-Performance Electrochemical Energy Storage

Co-intercalation strategy of constructing partial cation substitution of ammonium vanadate {(NH₄)₂V₆O₁₆} for stable zinc ion storage

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V3Se4 embedded within N/P co-doped carbon fibers for sodium/potassium ion batteries

Cited by 101 publications

References 69 publications

Structure Engineering of BiSbSx Nanocrystals Embedded within Sulfurized Polyacrylonitrile Fibers for High Performance of Potassium‐Ion Batteries

Structure Engineering of BiSbSx Nanocrystals Embedded within Sulfurized Polyacrylonitrile Fibers for High Performance of Potassium‐Ion Batteries

B, O and N Codoped Biomass-Derived Hierarchical Porous Carbon for High-Performance Electrochemical Energy Storage

Co-intercalation strategy of constructing partial cation substitution of ammonium vanadate {(NH4)2V6O16} for stable zinc ion storage

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Structure Engineering of BiSbS_x Nanocrystals Embedded within Sulfurized Polyacrylonitrile Fibers for High Performance of Potassium‐Ion Batteries

Structure Engineering of BiSbS_x Nanocrystals Embedded within Sulfurized Polyacrylonitrile Fibers for High Performance of Potassium‐Ion Batteries

Co-intercalation strategy of constructing partial cation substitution of ammonium vanadate {(NH₄)₂V₆O₁₆} for stable zinc ion storage