A facile low-temperature synthesis of V2O5 flakes for electrochemical detection of hydrogen peroxide sensor

Manickam, Sivakumar; Sakthivel, Mani; Chen, Shen‐Ming; Veeramani, Vediyappan; Chen, Wei Lun; Bharath, G.; Madhu, Rajesh; Miyamoto, Nobuyoshi

doi:10.1007/s11581-017-2046-5

Cited by 16 publications

(6 citation statements)

References 41 publications

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“…[1] As analysis of the in situ Raman above, under negative bias voltages, the intercalation of a large amount of lithium ions into the V 2 O 5 thin film changes its VO bonding characteristic, resulting in the transformation of the V 2 O 5 thin film from the semiconductor (V 2 O 5 ) to the conductor (Li x V 2 O 5 ). [8] And the improvement of conductivity of the V 2 O 5 thin film accelerates the migration of lithium-ion at electrode-electrolyte interface, [26,42,45] which is consistent with the above analysis of the diffusion coefficient (D) of lithium ions. Besides, the value of R ct is greatly decreased with the increase of forward or negative bias potential, indicating that the electrochemical reaction proceeds more easily at high voltage.…”

Section: Wwwadvmatinterfacesdesupporting

confidence: 81%

“…Figure 5a–c depict the Nyquist plots of the V 2 O 5 thin film in the potential region −1.0 to +2.0 V. A semicircle part related to the charge transfer and an inclined line correlated with ions diffusion constitute the Nyquist plot. [ 41 ] The inset in Figure 5b presents the equivalent circuit used to fit the EIS spectra, [ 42 ] and detailed fit data are given in Table S4, Supporting Information The Warburg impedance, W , reflects the diffusion kinetics of lithium ions in the V 2 O 5 thin films. [ 43 ] R ct is the interfacial charge transfer resistance at the electrode‐electrolyte interface, which can be defined as the semicircle diameter at high frequency of the Nyquist plots.…”

Section: Resultsmentioning

confidence: 99%

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In Situ Raman Observation of Dynamically Structural Transformation Induced by Electrochemical Lithium Intercalation and Deintercalation from Multi‐Electrochromic V₂O₅ Thin Films

Zhang

Xie

et al. 2022

Adv Materials Inter

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Understanding the dynamic nature of electrochemical interface induced by ion transfer is of great significance. Herein, in situ Raman spectroscopy combined with electrochemistry has been developed to real‐time monitor the transfer of lithium ions at electrode‐electrolyte interface and reveal the associated structure and performance variation of the vanadium pentoxide (V2O5) thin films on the indium tin oxide/silver/aluminum zinc oxide/poly(ethylene terephthalate) (ITO/Ag/AZO/PET) substrates. It is demonstrated that the Raman active/silent states of the vibrational modes of VO, V3O, and VO bonds, as well as the transformation of the V2O5 thin films from V2O5 to lithium vanadate (LixV2O5), can be reversibly changed with reversible extraction/insertion of lithium ions. In situ UV‐vis spectroscopy in combination with in situ Raman analysis is applied to show that the reversible evolutions involving V2O5/LixV2O5 and VO bonding characteristic contribute to the multi‐color electrochromic characteristic of the V2O5 thin films enabling a superior optical modulation of up to 75.41%. This experimental approach establishes a significative guideline for the more elaborate research on the dynamic nature of electrochemical interface.

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Section: Wwwadvmatinterfacesdesupporting

confidence: 81%

Section: Resultsmentioning

confidence: 99%

In Situ Raman Observation of Dynamically Structural Transformation Induced by Electrochemical Lithium Intercalation and Deintercalation from Multi‐Electrochromic V₂O₅ Thin Films

Zhang

Xie

et al. 2022

Adv Materials Inter

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“…The remaining bands (481.1, 621.9, and 835 cm −1 ) correspond to the V−O−V vibrations of doubly and triply coordinated oxygen bands. 34 The FTIR spectra corresponding to V 2 O 5 /h-BN exhibited transmittance bands similar to those of pure V 2 O 5 in addition to bands corresponding to boron nitride. The band at 1381.7 cm −1 is characteristic of B−N bond stretch (in-plane) as well as for the hexagonal phase (h-BN) that is sp 2 -bonded.…”

Section: Fourier Transform Infrared Spectroscopy (Ftir)mentioning

confidence: 89%

Exploring the Enhanced Electrochemical Activity of V₂O₅/h-BN: Investigating Its Structural Dynamics for Asymmetric Supercapacitors

Mounasamy,

Keerthana,

Ponpandian

2024

ACS Appl. Electron. Mater.

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The prospect of supercapacitors solely relies on the propensity of the electrode to exhibit characteristic advancements in adsorption and desorption of ions, charge/discharge response, cyclic stability, specific capacitance (C s ), and power and energy densities. Hence, in this work, attention was given to improving the electrochemical characteristics of vanadium pentoxide (V 2 O 5 ) by incorporating boron nitride (h-BN) synthesized through a hydrothermal approach. The synthesized V 2 O 5 / h-BN nanoparticles exhibited a polycrystalline structure with a V +5 oxidation phase. The stacked heterostructures of V 2 O 5 /h-BN enabled improved electrochemical performance compared to pure V 2 O 5 with a specific capacitance of 408 F/g at a current density of 1 A/g in a 1 M KCl electrolyte. From Dunn's method, the capacitive contribution was found evident for the V 2 O 5 /h-BN electrode. Through asymmetric supercapacitor studies, V 2 O 5 /h-BN was found to exhibit energy and power densities of 25 Wh/kg and 2373 W/kg, respectively. This work clearly shows that incorporating h-BN into V 2 O 5 significantly boosts electrochemical performance, achieving notable cyclic stability with approximately 84.2% capacitance retention after over 5000 cycles in asymmetric supercapacitor tests. The electrochemical study on V 2 O 5 /h-BN nanostructures in this work will certainly promote the potential of h-BN heterostructures as an additive for efficient performance in energy storage applications.

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“…Consequently, V 2 O 5 is found in several studies being a sensing material for several gas, such as, ammonia, ethanol, pH-sensor, EGFET pH-sensor, phenylhydrazine, NO 2 , H 2 O 2 and among others. In all cases, V 2 O 5 demonstrated to be highly sensitivity in several temperature and under both dark and illumination conditions [18,[39][40][41][42][43][44][45][46][47]. Similar to the sensor, a biossensor turn an analytical response into a measurable chemical signal and detects only a certain biological product as a target analyte.…”

Section: Properties and Applicationsmentioning

confidence: 99%

Vanadium Pentoxide (V₂O₅): Their Obtaining Methods and Wide Applications

Cestarolli¹,

Guerra²

2021

Transition Metal Compounds - Synthesis, Properties, and Application

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The first synthesis of pentoxide vanadium (V2O5) as gel completed 135 years in 2020. Since its first synthesis, the V2O5 has attracted attention over the years in different areas in science and technology. There are several possibilities to obtain V2O5 resulting in different structures. Among these methods, it is possible to mention the sol–gel, hydrothermal/solvothermal synthesis, electrospinning, chemical vapor deposition (CVD), physical vapor deposition (PVD), template-based methods, reverse micelle techniques, Pechini method and electrochemical deposition that can be considered as the great asset for its varied structures and properties. Progress towards obtaining of different structures of V2O5, and phases have been resulted in lamellar structure with wide interlayer spacing, good chemical and thermal stability and thermoelectric and electrochromic properties. Throughout this advancement, its performance for industrial applications have made a strong candidate in electrochromic devices, photovoltaic cell, reversible cathode materials for Li batteries, supercapacitor, among others. This chapter will be to assist an updated review since the first synthesis up to current development.

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A facile low-temperature synthesis of V2O5 flakes for electrochemical detection of hydrogen peroxide sensor

Cited by 16 publications

References 41 publications

In Situ Raman Observation of Dynamically Structural Transformation Induced by Electrochemical Lithium Intercalation and Deintercalation from Multi‐Electrochromic V₂O₅ Thin Films

In Situ Raman Observation of Dynamically Structural Transformation Induced by Electrochemical Lithium Intercalation and Deintercalation from Multi‐Electrochromic V₂O₅ Thin Films

Exploring the Enhanced Electrochemical Activity of V₂O₅/h-BN: Investigating Its Structural Dynamics for Asymmetric Supercapacitors

Vanadium Pentoxide (V₂O₅): Their Obtaining Methods and Wide Applications

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A facile low-temperature synthesis of V2O5 flakes for electrochemical detection of hydrogen peroxide sensor

Cited by 16 publications

References 41 publications

In Situ Raman Observation of Dynamically Structural Transformation Induced by Electrochemical Lithium Intercalation and Deintercalation from Multi‐Electrochromic V2O5 Thin Films

In Situ Raman Observation of Dynamically Structural Transformation Induced by Electrochemical Lithium Intercalation and Deintercalation from Multi‐Electrochromic V2O5 Thin Films

Exploring the Enhanced Electrochemical Activity of V2O5/h-BN: Investigating Its Structural Dynamics for Asymmetric Supercapacitors

Vanadium Pentoxide (V2O5): Their Obtaining Methods and Wide Applications

Contact Info

Product

Resources

About

In Situ Raman Observation of Dynamically Structural Transformation Induced by Electrochemical Lithium Intercalation and Deintercalation from Multi‐Electrochromic V₂O₅ Thin Films

In Situ Raman Observation of Dynamically Structural Transformation Induced by Electrochemical Lithium Intercalation and Deintercalation from Multi‐Electrochromic V₂O₅ Thin Films

Exploring the Enhanced Electrochemical Activity of V₂O₅/h-BN: Investigating Its Structural Dynamics for Asymmetric Supercapacitors

Vanadium Pentoxide (V₂O₅): Their Obtaining Methods and Wide Applications