2014
DOI: 10.1016/j.mseb.2014.01.012
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Characterization and electrical properties of polyvinyl alcohol based polymer electrolyte films doped with ammonium thiocyanate

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Cited by 39 publications
(14 citation statements)
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“…The natrite forms through the reactions shown in Equations 1 01-0990). However, the absence of peaks corresponding to thiocyanate determines complete dissolution or decomposition, which is in agreement with the finding of literature [24,25]. The obvious characteristic diffraction peaks of tridymite and quartz derive from the transformation of fumed silica.…”
Section: Tg/dscsupporting
confidence: 92%
See 1 more Smart Citation
“…The natrite forms through the reactions shown in Equations 1 01-0990). However, the absence of peaks corresponding to thiocyanate determines complete dissolution or decomposition, which is in agreement with the finding of literature [24,25]. The obvious characteristic diffraction peaks of tridymite and quartz derive from the transformation of fumed silica.…”
Section: Tg/dscsupporting
confidence: 92%
“…The natrite forms through the reactions shown in Equations (1)-(3), firstly the NH4SCN reacts with the OH − and produces NH3, S 2− , and CO3 2− , following by the formation of sodium sulfite via oxidizing reaction between the S 2− and O2 derived from air, finally partial sodium sulfite is oxidized further and transfers into sodium sulfate. SCN − can transform into S 2− , CO2, and NH4 + under acid environment via a reduction reaction [24]. However, the hump of amorphous silicate covers the spectra of Na2CO3, Na2SO3, and Na2SO4, because of their low contents in XRD patterns.…”
Section: Tg/dscmentioning
confidence: 99%
“…At lower frequencies, tan δ increases with increasing frequency as a result of the active element (ohmic) which is more dominant than the reactive element (capacitive). At higher frequencies (~MHz), tan δ decreases with increasing frequency because the reactive element grows in proportion to the frequency and also the ohmic element is independent of frequency [46]. The observed well-defined peak separates the electrode polarization and bulk relaxation processes of the material.…”
Section: Loss Tangent (Tan δ) Analysismentioning
confidence: 91%
“…This result suggests that the charge carriers responsible for both conductivity and relaxation are the same. relaxation time (η) can be evaluated by [46] 2πf max η= 1…”
Section: Loss Tangent (Tan δ) Analysismentioning
confidence: 99%
“…PVA is also a nontoxic and water soluble polymer. It has a strong film forming ability with very high dielectric strength, good charge storage capacity, high mechanical tensile strength, and optical properties [5,6]. Doping of transition metal salts into permanently polarized vinyl polymers like PVA in a multiphase system can induce pronounced changes in various properties of complexes [7].…”
Section: Introductionmentioning
confidence: 99%