Characterization of chitosan/PVA blended electrolyte doped with NH4I

Buraidah, M.H.; Arof, A. K.

doi:10.1016/j.jnoncrysol.2011.05.021

Cited by 198 publications

(86 citation statements)

References 48 publications

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“…It can be noticed from Table 1 that there is a shifting in the carboxamide (O=C-NHR) and amine (NH 2 ) bands which significantly confirms that complexation has occurred between chitosan and NaTf salt at the nitrogen and oxygen atoms of the amine and carboxamide groups, respectively [29]. The shifting and decrease in intensity are attributable to the fact that the attachment of cation salt to nitrogen and oxygen atoms can reduce the vibration intensity of the N-H or O=C-NHR bonds due to the molecular weight becoming greater after cation binding [28].…”

Section: Ftir Studymentioning

confidence: 70%

Electrical Conduction Mechanism in Solid Polymer Electrolytes: New Concepts to Arrhenius Equation

Aziz

Abidin

2013

Journal of Soft Matter

109

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Solid polymer electrolytes based on chitosan NaCF 3 SO 3 have been prepared by the solution cast technique. X-ray diffraction shows that the crystalline phase of the pure chitosan membrane has been partially disrupted. The fourier transform infrared (FTIR) results reveal the complexation between the chitosan polymer and the sodium triflate (NaTf) salt. The dielectric constant and DC conductivity follow the same trend with NaTf salt concentration. The increase in dielectric constant at different temperatures indicates an increase in DC conductivity. The ion conduction mechanism follows the Arrhenius behavior. The dependence of DC conductivity on both temperature and dielectric constant ( dc ( , ) = 0 − / ) is also demonstrated.

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Section: Ftir Studymentioning

confidence: 70%

Electrical Conduction Mechanism in Solid Polymer Electrolytes: New Concepts to Arrhenius Equation

Aziz

Abidin

2013

Journal of Soft Matter

109

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“…PVA shows a high hydrophilicity, large water permeation and low alcohol crossover [21], essential properties for applications in direct alcohol fuel cells. Moreover, hydroxyl groups from PVA form strong hydrogen bonding with amino and hydroxyl groups of CS enhancing conductivity and mechanical properties [22]. In addition, both polymers are miscible in one another.…”

Section: Introductionmentioning

confidence: 99%

Chitosan:poly (vinyl) alcohol composite alkaline membrane incorporating organic ionomers and layered silicate materials into a PEM electrochemical reactor

García‐Cruz

Casado-Coterillo

Iniesta

et al. 2016

Journal of Membrane Science

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Cite this article as: Leticia García-Cruz, Clara Casado-Coterillo, Jesús Iniesta, Vicente Montiel and Ángel Irabien, Chitosan:poly (vinyl) alcohol composite alkaline membrane incorporating organic ionomers and layered silicate materials into a PEM electrochemical reactor, Journal of Membrane Science, http://dx.doi.org/10.1016Science, http://dx.doi.org/10. /j.memsci.2015 This is a PDF file of an unedited manuscript that has been accepted for publication. As a service to our customers we are providing this early version of the manuscript. The manuscript will undergo copyediting, typesetting, and review of the resulting galley proof before it is published in its final citable form. Please note that during the production process errors may be discovered which could affect the content, and all legal disclaimers that apply to the journal pertain. conductivity and alcohol barrier effect to reduce the crossover. The structural properties, thermal stability, hydrolytic stability, transport and ionic properties of the prepared composite membranes were investigated by scanning electron microscopy (SEM), Xray diffraction (XRD), thermo-gravimetric analysis (TGA), water uptake, water content, alcohol permeability, thickness, ion exchange capacity (IEC) and OH -conductivity measurements. The addition of both organic and inorganic fillers in a CS:PVA blend polymer enhances the thermal and ionic properties. All the membranes are homogenous, as revealed by the SEM and XRD studies, except when stannosilicate UZAR-S3 is used as filler, which leads to a dual layer structure, a top layer of UZAR-S3 lamellar particles bound together by the polymer matrix and a bottom layer composed mostly of polymer blend. The loss of crystallinity was especially remarkable in 4VP/CS:PVA membrane.

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“…Unfortunately, most of them are unsolvable in solvents and nonbiodegradable which can cause environmental problem compared to natural polymers occurs in nature, often water-based and can be extracted. For that reason, electrolyte based natural polymer has engrossed much attention due to their potential applications in electrochemical devices such as super capacitors, rechargeable batteries, fuel cells and solar cells (Buraidah and Arof, 2011).…”

Section: Introductionmentioning

confidence: 99%

Electrical Studies of Carboxy Methycellulose-Chitosan Blend Biopolymer Doped Dodecyltrimethyl Ammonium Bromide Solid Electrolytes

Bakar¹,

Muhamaruesa²,

Aniskari³

et al. 2015

American Journal of Applied Sciences

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In this study, a polymer-blend system consist of Carboxy Methylcellulose (CMC)-Chitosan (CS) as blend biopolymer host and doped with various composition of Dodecyltrimethyl Ammonium Bromide (DTAB) were successfully prepared via solution casting techniques. The new system has been analyzed through Electrical Impedance Spectroscopy (EIS) from temperature 303 K until 393 K to determine the conductivity of biopolymer electrolytes in the frequency range of 50 Hz to 1 MHz and the voltage between 5 to 50 mV. The optimum conductivity (1.86×10 −6 S.cm) at ambient temperature obtained for composition of 5 wt.% DTAB. The temperature dependence of ionic conductivity was found to obeys the Arrhenius rule where R 2 ≈1 and thermally activated. The dielectric studies show a non-Debye behavior of SBEs based on the analyzed data using complex permittivity, ε* and complex electrical modulus, M* of the sample at selected temperature.

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Characterization of chitosan/PVA blended electrolyte doped with NH4I

Cited by 198 publications

References 48 publications

Electrical Conduction Mechanism in Solid Polymer Electrolytes: New Concepts to Arrhenius Equation

Electrical Conduction Mechanism in Solid Polymer Electrolytes: New Concepts to Arrhenius Equation

Chitosan:poly (vinyl) alcohol composite alkaline membrane incorporating organic ionomers and layered silicate materials into a PEM electrochemical reactor

Electrical Studies of Carboxy Methycellulose-Chitosan Blend Biopolymer Doped Dodecyltrimethyl Ammonium Bromide Solid Electrolytes

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