Magnesium ion conducting polyvinyl alcohol–polyvinyl pyrrolidone-based blend polymer electrolyte

Ramaswamy, M.C.; Malayandi, Thamilselvan; Selvasekarapandian, S.; Jayakumar, S.; Rangaswamy, Manjuladevi

doi:10.1007/s11581-017-2023-z

Cited by 44 publications

(19 citation statements)

References 56 publications

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“…For example, hybrid PVP/PVA sensors have been used in gas detection, 24 optoelectronic materials, [25][26][27] and solid polymer electrolytes. 28,29 Zinc oxide (ZnO) belongs to the family of transparent conductive oxide (TCO) material, which possess a wide band gap (3.3 eV) and characterized by a high transparency and excellent conductivity. TCO material is indispensable in many applications like solar cell, light emitting diode and photocatalyst, field effect transistors.…”

Section: Introductionmentioning

confidence: 99%

Structural, morphological, optical, and dielectric properties of PVA‐PVP filled with zinc oxide aluminum‐graphene oxide composite for promising applications

Mohamed

Sharmoukh

Youssef

et al. 2021

Polymers for Advanced Techs

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Polymer nanocomposites of poly (vinyl alcohol) (PVA), poly (vinyl pyrrolidone) (PVP) filled with various concentration of nanocomposite (Zn 0.97 Al 0.03 O: 1 wt% GO) x ;x = 1, 3, 5, and 7 wt% were prepared by solution mixing and then cast into films.X-ray combined with energy dispersive spectroscopy (EDS) data elucidated the successful preparation of pure PVA/PVP and filled films. The identifiable diffraction lines are ascribable to the presence of filler (Zn 0.97 Al 0.03 O: 1 wt% GO) that further established by the data of EDS as well as selected area electron diffraction pattern (SAED) achieved by high-resolution transmission electron microscopy (HRTEM) measurement. The optical band gap (E g ) of composite shows a significant decrement from 5.2 to 4.7 eV as the nanocomposite fillers were varied from 0 to 7 wt%. In addition, the refractive index (n), optical dielectric loss (ε 2 ), and optical conductivity (σ opt ) were investigated. The PVA/PVP filled with merely 1 wt% of the particle has an extremely high dielectric permittivity and conductivity.

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Section: Introductionmentioning

confidence: 99%

Structural, morphological, optical, and dielectric properties of PVA‐PVP filled with zinc oxide aluminum‐graphene oxide composite for promising applications

Mohamed

Sharmoukh

Youssef

et al. 2021

Polymers for Advanced Techs

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“…It is important to note that, in figure 2a and b, the x-axis (abscissa) values are the logarithm of the applied signal frequencies, and hence the abscissa scale is from 1 to 7 (instead of 12 Hz to 200 kHz); this has been done for the better visualization of values in the plot. The formula given in equation (8) has been used to calculate the value of AC Conductivity (σ ). Two different regions have been observed: one corresponding to DC conductivity (σ DC ) is observed in the lower frequency region (from 12 up to 300 Hz), which is attributed to space charge polarization at the electrodeelectrolyte interface, whereas the other region is observed in the higher frequency regime (from 400 Hz up to 200 kHz), which is attributed to ion migration under an influence of the applied AC field.…”

Section: Resultsmentioning

confidence: 99%

“…Characterization of ammonium thiocyanate complexed with PVA-PVP has revealed an increase in the mobility of charge carriers; this enhances the electrical conductivity of the composite, as seen from the Cole-Cole plot [7]. A literature survey also reveals that magnesium ion conducting, magnesium chlorate (Mg(ClO 4 ) 2 )-doped PVA-PVP blend polymer electrolyte has been synthesized; the ionic conductivity as well as dielectric behaviour of this material has been studied using AC impedance spectroscopy [8]. Dielectric study of un-doped and doped polymeric systems is an active field of research [9][10][11][12].…”

Section: Introductionmentioning

confidence: 99%

Dielectric relaxation in a cadmium chloride-doped polymeric blend

Baraker

Lobo

2019

Bull Mater Sci

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The temperature-and frequency-dependent relaxation processes in films of a polymeric blend comprising a polyvinyl alcohol (PVA)/polyvinyl acetate (PVAc) co-polymer blended with polyvinyl pyrrolidone (PVP) in equal proportion by weight, and doped with an inorganic metallic salt, cadmium chloride (CdCl 2), at 0.0 wt% and 10.2 wt% doping levels (DLs), have been studied using dielectric relaxation spectroscopy (DRS). The frequency response of dielectric parameters for these samples has been studied with variation in temperature, from 303 up to 373 K, at different fixed frequencies (from 12 Hz up to 200 kHz). Study of Cole-Cole plots reveals a decrease in bulk resistivity of the samples with increase in temperature, which is attributed to thermally induced increase in the mobility of polymer chains. A 10-fold increase in bulk conductivity is observed for doped films with a DL of 10.2 wt%, when compared with the bulk conductivity of the un-doped (0.0 wt% DL) sample. The temperature dependence of dielectric parameters at different frequencies has been studied and the activation energy has been calculated. The relaxation time is found to be of the order of a few milliseconds, which implies that electrical conduction in CdCl 2-doped PVA/PVAc-PVP blend films is predominantly due to the migration of ions. The variation of AC conductivity with frequency is in agreement with Jonscher's universal power law. AC conductivity of the sample is found to increase significantly with an increase in temperature of the sample. Frequency-dependent dielectric properties of CdCl 2-doped PVA/PVAc-PVP blend films, for various DLs, are also studied at room temperature.

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“…The two main advantages of the blending system are simplicity of preparation and controllability of physical properties by compositional regulation. [137,138] Polu et al developed a PVA-PEG-Mg(NO 3 ) 2 system by a simple solvent casting technique, and the conductivity of the system was measured to be 9.63 × 10 -5 S cm -1 at room temperature. [139] The Mg 2+ conductivities of Mg(ClO 4 ) 2 in the PEO-PVP-Mg(NO 3 ) 2 and PVA-PAN-Mg(NO 3 ) 2 systems are 5.8 × 10 -4 and 1.7 × 10 -3 S cm -1 at room temperature, respectively.…”

Section: Polymers and Compositesmentioning

confidence: 99%

“…The two main advantages of the blending system are simplicity of preparation and controllability of physical properties by compositional regulation. [ 137,138 ] Polu et al. developed a PVA‐PEG‐Mg(NO 3 ) 2 system by a simple solvent casting technique, and the conductivity of the system was measured to be 9.63 × 10 –5 S cm –1 at room temperature.…”

Section: Solid‐state Electrolytementioning

confidence: 99%

Solid‐State Electrolytes for Rechargeable Magnesium‐Ion Batteries: From Structure to Mechanism

Guo

Yuan

Zhang

et al. 2022

Small

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In recent years, scientists have explored various metals, such as sodium, potassium, zinc, aluminum, and magnesium, for metal-ion batteries to replace lithium from various applications. [12][13][14][15][16][17][18][19][20][21][22][23][24][25][26] Among different metal-ion batteries, rechargeable magnesium-ion batteries (MIBs) are expected to be a potential candidate for large-scale energy storage systems owing to the following excellent intrinsic advantages. 1) Magnesium has a lower electrode potential (-2.37 V versus SHE) than Zn and Al metals. 2) Magnesium is a light metal with a density of 1.74 g cm -3 and is abundantly present in the earth's crust (i.e., approximately 2.1%, which is 10 4 times that of lithium metal). 3) Two electrons can be provided during redox reactions, leading to a higher theoretical volumetric capacity of 3866 mAh cm -3 than that of lithium metal (2046 mAh cm -3 ). 4) A magnesium anode with higher stability than a lithium anode is significantly less susceptible to dendrite formation. Similar to other metal-ion batteries, the core components of MIBs are also anode, cathode and electrolyte. Commonly, the Mg 2+ ions are released from the anode and inserted into the cathode during the discharge process, and the process is reversed during the charging process. However, the electrochemical performance of magnesium is different from that of lithium. The passivation layer formed between magnesium and ordinary electrolyte prevents the diffusion of Mg 2+ ions and limits its reversible deposition from salt-containing aprotic electrolytes such as magnesium perchlorate, magnesium tetrafluoroborate, imide, carbonate, and nitrile. Hence, achieving reversible deposition/dissolution of Mg ions in the electrolyte is very important for MIBs.Because Mg is active in an aqueous solution and easily forms a passivation layer on the surface, researchers have explored different organic systems to realize electrodeposition. [27][28][29] The concept of rechargeable MIBs was first raised in 1990. Gregory et al. constructed Mg//1.0 M N-ethylaniline magnesium chloride, 0.20 M AlCl 3 , THF//Cu batteries, which demonstrated compatibility between Mg organoboranes electrolytes (Mg(BPh 2 Bu 2 ) 2 or Mg(BPhBu 3 ) 2 ) and Mg anodes. [30] Then, in 2000, Aurbach's group reported the first study on electrochemically deposited Mg metal. [31] Subsequently, the same research group prepared a high-voltage (>3 V) all-phenyl complex electrolyte as the product of the reaction between PhMgCl Rechargeable magnesium (Mg)-ion batteries have received growing attention as a next-generation battery system owing to their advantages of sufficient reserves, lower cost, better safety, and higher volumetric energy density than lithium-ion batteries. However, Mg as an anode can be easily passivated during charging/discharging by most common solvents, which are inconducive for magnesium deposition/stripping. Based on this, the development of Mg-ion solid-state electrolytes in the last decades led to the formulization of several concepts beyond prev...

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Magnesium ion conducting polyvinyl alcohol–polyvinyl pyrrolidone-based blend polymer electrolyte

Cited by 44 publications

References 56 publications

Structural, morphological, optical, and dielectric properties of PVA‐PVP filled with zinc oxide aluminum‐graphene oxide composite for promising applications

Structural, morphological, optical, and dielectric properties of PVA‐PVP filled with zinc oxide aluminum‐graphene oxide composite for promising applications

Dielectric relaxation in a cadmium chloride-doped polymeric blend

Solid‐State Electrolytes for Rechargeable Magnesium‐Ion Batteries: From Structure to Mechanism

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