Using PVA, Methacrylate and Lauroyl Chitosan as Separator in Supercapacitors

Hashim, M. A.; Sa'adu, Lawal; Baharuddin, Masbudi bin; Dasuki, Karsono Ahmad

doi:10.5539/jmsr.v3n1p25

Cited by 10 publications

(9 citation statements)

References 16 publications

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“…The pure solid polymer electrolyte (PSPE) which can also be served as separators in supercapacitors fabrications have their laboratory preparations discussed elsewhere by us, in Hashim et al, (2012), Hashim et al, (2014) and by Jiang et al, (2013). But for the purpose of elaboration; the active materials comprise of H 3 PO 4 and PVA.…”

Section: Preparation Of the Composite Pva Electrolytesmentioning

confidence: 99%

Conductivity Studies and Characterizations of PVA-Orthophosphoric Electrolytes

Sa'adu¹,

Hashim²,

Baharuddin³

2014

JMSR

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Solid polymer electrolyte (SPEs) has drawn great attention nowadays, particularly in the field of science and applied science, specifically, those used as separators in industries and researchers for the assemblage of some "classified batteries" and super capacitors. In this report, we present the grandeur of this SPE (pure type), particularly at room temperature, such that, it can be applied as an electrolyte as well as a separator in supercapacitor fabrication. The SPEs were produced from the composition of polyvinyl alcohol (PVA) and Phosphoric acid (H 3 PO 4 ), such that, the PVA samples were kept constant while the phosphoric acid was varied at 0, 10, 20, 30, 40, 50, 60, and 70 wt. %. After the experimentation, the pure polymers show excellent results in term conductivity, in that, it has recorded a conductivity as high as 2.56 x 10 -3 Scm -1 at the compositions of 70 wt. %. Aside that, we also observed that, the bulk moduli (R b ) value decreases with the increase in concentration, with pure solid polymer electrolyte (PSPE) recording 2.5 Ω at the highest composition of 70 wt. %.

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Section: Preparation Of the Composite Pva Electrolytesmentioning

confidence: 99%

Conductivity Studies and Characterizations of PVA-Orthophosphoric Electrolytes

Sa'adu¹,

Hashim²,

Baharuddin³

2014

JMSR

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“…The average specific discharge capacitance (Cd) was 0.31 Fg -1 . The potential drop that takes place normally due to some reversible reactions during the transition from charging to discharging is rather low exhibiting the satisfactory performance of the EDLC 13 .…”

Section: Resultsmentioning

confidence: 99%

Applicability of natural rubber based polymer electrolyte for electrochemical double layer capacitors

2019

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Natural rubber has received a great interest to be used for electrochemical applications recently. But, Sri Lankan natural rubber has not yet been considered for such activity other than exporting and using for some manufacturing processes. Main objective of the present study is investigating the candidacy of Sri Lankan natural rubber in electrochemical double layer capacitors. Methyl grafted natural rubber was dissolved in tetrahydrofuran and it was later mixed with a Li salt. Using the solvent casting method, it was possible to prepare a thin, bubble free film. It was sandwiched in between two identical Sri Lankan natural graphite electrodes. Performance evaluation was accomplished with cyclic voltammetry, electrochemical impedance spectroscopy and galvanostatic charge discharge test. Single electrode specific capacitance was depending on the potential window and the scan rate of cycling. Nyquist plots confirmed the capacitive behavior at low frequency region. The

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“…The hybrid solid polymer electrolytes (HSPEs) experimental preparation was discussed elsewhere by us, in Hashim et al (2012), Hashim et al (2014) and by Jiang et al (2013). We also show how effective they are when used as separators and electrolytes in the supercapacitor fabrication.…”

Section: Preparation Of the Composite Pva Electrolytesmentioning

confidence: 87%

A Noble Conductivity Studies and Characterizations of PVA-Orthophosphoric-Filter Paper Electrolytes

Sa'adu¹,

Hashim²,

Baharuddin³

2014

JMSR

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The nobility of solid polymer electrolyte (SPEs) has made them a subject of interest, especially in the arena of science and technology, and most importantly as they are used as separators in industries and by researchers for the assembly of some "few battery types" and supercapacitors. This paper, highlights the nobility of the hybrid solid polymer electrolyte (HSPE), particularly at room temperature such that, it can be used as an electrolyte as well as a separator in supercapacitor fabrication. The hybrid SPEs were produced from the composition of polyvinyl alcohol (PVA) and Phosphoric acid (H 3 PO 4), where the PVA samples were kept constant while the phosphoric acid concentration was varied at 0, 10, 20, 30, 40, 50, 60, and 70 wt. %. XRD results show that, the crystallinity decreases as the acid concentration increases and consequently, there is an enhancement in the amorphicity of the samples responsible for the process of ion transport. This characteristic behavior was confirmed by the analysis of the differential scanning calorimetry results. FESEM result pictured the entangling nature of the combined samples. High conductivity of 1.67 x 10-3. Scm-1 was recorded for the HSPE at the composition of 70:30 wt. %. It was also noticed that, the bulk modulus, R b of the HSPE (5.73 Ω) at the aforementioned composition decreases with the increase in concentration. Keywords: hybrid solid polymer electrolyte (HSPE), polyvinyl alcohol (PVA), phosphoric acid (H 3 PO 4), Electrochemical Impedance Spectroscopy (EIS). Differential Scanning Calorimetry (DSC) Analysis Polymer Electrolytes (SSPE):-In SSPE, solvents, both aqueous and non-aqueous swells the host polymer live PVA. So, the dopant ionic solutes such as H 3 PO 4 is hosted in the swollen lattice thereby permitting the motion of ions in the solvent swollen region of the polymer host. Their conductivity depends on the concentration of the solvent in the region that is being swollen (Ulaganathan et al., 2012). And lastly (iii) the Solvent Free Polymer Electrolytes (SFPE): These are polymer salt complex, which is formed by complexes between salts of alkali metals and polymer containing solvating hetroatoms, example; O, S and N (Ulaganathan et al., 2012). The complexation between poly ethylene oxide (PEO) and alkali metal salts is a good example of SFPE. SFPE are sub-classified into three also. They are; (a) Solid Polymer Electrolytes (SPEs), (b) Gel Polymer Electrolytes (GPEs), and (c) Composite polymer electrolytes (CPEs) (Kuo et al., 2013; Tripath et al., 2012). GPEs can be simply regarded as plasticizers incorporated polymer-salt complex (Ulaganathan et al., 2012). They are therefore consisted of a liquid electrolytes immobilized in a polymer matrix (Hashmi, 2013a) and exhibits high ionic conductivity (10 −3 to 10 −4 Scm −1 at ambient temperature) and can be obtained by either loading of a liquid electrolyte in a microporous matrix or by increasing the viscosity of a liquid electrolyte through the addition of a soluble polymer until gel consistency www.ccsenet.org/...

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Using PVA, Methacrylate and Lauroyl Chitosan as Separator in Supercapacitors

Cited by 10 publications

References 16 publications

Conductivity Studies and Characterizations of PVA-Orthophosphoric Electrolytes

Conductivity Studies and Characterizations of PVA-Orthophosphoric Electrolytes

Applicability of natural rubber based polymer electrolyte for electrochemical double layer capacitors

A Noble Conductivity Studies and Characterizations of PVA-Orthophosphoric-Filter Paper Electrolytes

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