Researches on the structure and electrochemical properties of MoxV2-xO5+y nanosheets

Lu, Shan; Xue, Zhongdan; Chen, Yuqing; Wan, Fangchao; Zhu, Qi; Захарова, Г. С.

doi:10.1007/s11581-016-1949-x

Cited by 4 publications

(3 citation statements)

References 35 publications

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“…The interplanar distance of layered V 5+ -enriched V 6 O 13 was around 0.325 nm, and the corresponding EDX of the sample is shown in Figure d . The flaky layered structure of the sample with enlarged interspacing distance might be one of the reasons for the improved diffusion of Zn 2+ ions and enhanced electrochemical performance of the sample …”

Section: Resultsmentioning

confidence: 99%

“…24 The flaky layered structure of the sample with enlarged interspacing distance might be one of the reasons for the improved diffusion of Zn 2+ ions and enhanced electrochemical performance of the sample. 25 To reveal the V 5+ -rich nature of the V 6 O 13 sample, a widerange XPS survey spectrum of the V 6 O 13 layered nanostructure is shown in Figure 4a. XPS analysis strongly validates the V, O, C, and N presence in the sample.…”

Section: ■ Results and Discussionmentioning

confidence: 99%

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Layered Structures of Enriched V⁵⁺ States of Vanadium Oxide as a Hybrid Cathode Material for Long-Cyclable Aqueous Zinc-Ion Batteries

Selvam

Durgalakshmi

Balakumar

et al. 2023

ACS Appl. Mater. Interfaces

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Recently, aqueous zinc-ion batteries (AZIBs) have garnered much attraction because of their ecofriendly nature, cost effectiveness, and reliability. However, there are still many challenges in developing suitable cathode materials for practical usage in ZIBs. In this work, we have synthesized a layered V 5+ -rich vanadium oxide (V 6 O 13 ) flaky structure that provided the electrolyte with a large active surface area. In addition to that, the mixed (V 4+/ V 5+ ) valence states of V have significantly improved the ionic diffusion of Zn 2+ , thereby improving the V 6 O 13 electrical conductivity. Therefore, the AZIBs based on the layered structure V 6 O 13 cathode with 1 M ZnSO 4 electrolyte exhibited a very high specific capacity of 394 mAh g −1 @ 0.1 A g −1 without the addition of any additives or electrode modification. The rate capability and cycle life are investigated at the current density of 2 A g −1 , where the capacity retention was found to be around 94% along with a coulombic efficiency of 96% for over 100 cycles. Such a material with high electrochemical performance can be used for portable electronic devices and electric vehicular applications.

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Section: Resultsmentioning

confidence: 99%

Section: ■ Results and Discussionmentioning

confidence: 99%

Layered Structures of Enriched V⁵⁺ States of Vanadium Oxide as a Hybrid Cathode Material for Long-Cyclable Aqueous Zinc-Ion Batteries

Selvam

Durgalakshmi

Balakumar

et al. 2023

ACS Appl. Mater. Interfaces

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“…The prepared electrode provided a good specific capacitance of 195.4 F•g −1 at a current density of 1 A•g −1 . The electrical conductivity improvement was due to the presence of the graphene, which also improved the SSA of the V 2 O 5 -xerogels approximately twice in comparison with the V 2 O 5 -only xerogels [292]. Besides, Zhang et al [293] synthesized the 3D porous V 2 O 5 hierarchical spheres consisting of stacked platelets through the precipitation of precursor microspheres in aqueous solution at room temperature and the subsequent calcination.…”

Section: Vanadium Pentoxide (V 2 O 5 )mentioning

confidence: 99%

Electrode Materials for Supercapacitors: A Review of Recent Advances

2020

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The advanced electrochemical properties, such as high energy density, fast charge–discharge rates, excellent cyclic stability, and specific capacitance, make supercapacitor a fascinating electronic device. During recent decades, a significant amount of research has been dedicated to enhancing the electrochemical performance of the supercapacitors through the development of novel electrode materials. In addition to highlighting the charge storage mechanism of the three main categories of supercapacitors, including the electric double-layer capacitors (EDLCs), pseudocapacitors, and the hybrid supercapacitors, this review describes the insights of the recent electrode materials (including, carbon-based materials, metal oxide/hydroxide-based materials, and conducting polymer-based materials, 2D materials). The nanocomposites offer larger SSA, shorter ion/electron diffusion paths, thus improving the specific capacitance of supercapacitors (SCs). Besides, the incorporation of the redox-active small molecules and bio-derived functional groups displayed a significant effect on the electrochemical properties of electrode materials. These advanced properties provide a vast range of potential for the electrode materials to be utilized in different applications such as in wearable/portable/electronic devices such as all-solid-state supercapacitors, transparent/flexible supercapacitors, and asymmetric hybrid supercapacitors.

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Phase transition and changing properties of nanostructured V2O5 thin films deposited by spray pyrolysis technique, as a function of tungsten dopant

2019

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Researches on the structure and electrochemical properties of MoxV2-xO5+y nanosheets

Cited by 4 publications

References 35 publications

Layered Structures of Enriched V⁵⁺ States of Vanadium Oxide as a Hybrid Cathode Material for Long-Cyclable Aqueous Zinc-Ion Batteries

Layered Structures of Enriched V⁵⁺ States of Vanadium Oxide as a Hybrid Cathode Material for Long-Cyclable Aqueous Zinc-Ion Batteries

Electrode Materials for Supercapacitors: A Review of Recent Advances

Phase transition and changing properties of nanostructured V2O5 thin films deposited by spray pyrolysis technique, as a function of tungsten dopant

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Researches on the structure and electrochemical properties of MoxV2-xO5+y nanosheets

Cited by 4 publications

References 35 publications

Layered Structures of Enriched V5+ States of Vanadium Oxide as a Hybrid Cathode Material for Long-Cyclable Aqueous Zinc-Ion Batteries

Layered Structures of Enriched V5+ States of Vanadium Oxide as a Hybrid Cathode Material for Long-Cyclable Aqueous Zinc-Ion Batteries

Electrode Materials for Supercapacitors: A Review of Recent Advances

Phase transition and changing properties of nanostructured V2O5 thin films deposited by spray pyrolysis technique, as a function of tungsten dopant

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Product

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Layered Structures of Enriched V⁵⁺ States of Vanadium Oxide as a Hybrid Cathode Material for Long-Cyclable Aqueous Zinc-Ion Batteries

Layered Structures of Enriched V⁵⁺ States of Vanadium Oxide as a Hybrid Cathode Material for Long-Cyclable Aqueous Zinc-Ion Batteries