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Browsing Scopus by Subject "2-hydroxyethylcellulose (2-HEC)"

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    Structural Investigation Of Solid Biopolymer Electrolytes: 2-hydroxyethyl Cellulose Doped Ammonium Formate As A Promising Proton Conductor
    (Taylor and Francis Ltd, 2024)
    Nur Maisarah Batrisyia Mohd Bahaudin Bokhar
    ;
    Mohd Ibnu Haikal Sohaimy
    ;
    Mohd IkmarNizam Mohamad Isa
    Fabrication of solid biopolymer electrolytes (SBEs) was mainly to cater the drawbacks of lith-ium-ion electrolytes in terms of leakage, high cost, and toxic material. In this present work,solid biopolymer electrolytes system comprises of 2-Hydroxyethyl Cellulose (2-HEC) as poly-mer host, and various weight percentage (wt.%) of Ammonium Formate (AF) as ionic dopingsalt are produced by using solution casting technique. The relation between structural andionic conductivity of 2-HEC/AF was analyzed and investigated by using X-Ray Diffraction(XRD), Fourier-Transform Infrared Spectroscopy (FTIR), and Electrical Impedance Spectroscopy(EIS). Through the analysis of XRD, it can be observed that the amorphous region of SBEsincreases as the concentration of AF salt increases. The amorphous region of SBEs can beconfirmed due to the interaction of salt concentration and polymer. However, in this presentwork, the broadest peak in XRD of the sample does not necessarily correlate with the high-est conductivity among the samples. The interaction between polymer-salt complexes isproved through FTIR spectrum at the range of 700 cm−1 to 1300 cm−1. The highest ionicconductivity of 2-HEC/AF achieved is 2.40 � 10−3 S/cm at room temperature for SBEs con-taining 40 wt.% of AF. The findings from this study made it clear that the concentration ofAmmonium Formate salt affects the increase in ionic conductivity
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