The effect of ti02 nanoparticles on properties of carboxymethyl celulose-lithium perchlorate solid biopolymer electrolyte / Nabilah Hani Norihan

Norihan, Nabilah Hani (2019) The effect of ti02 nanoparticles on properties of carboxymethyl celulose-lithium perchlorate solid biopolymer electrolyte / Nabilah Hani Norihan. Student Project. Faculty of Applied Sciences, Jengka, Pahang. (Unpublished)

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Abstract

Biopolymer is a promising green alternative to replace petroleum-based synthetic polymer in solid biopolymer electrolyte (SBE). However, the low ionic conductivity may limit the future applications. In this study, combination of carboxymethyl cellulose (CMC) as host matrix and lithium perchlorate (LiCIO4 ) SBE have been fabricated with addition of TiO2 nanoparticles and the effect on chemical, electrical, thermal and mechanical properties were investigated. Various concentration of LiCI04 (5, 10, 15,20,25,30 and 35 wt%) and TiO2 (1, 2, 3 and 4 wt%) was prepared by solvent casting method. The samples were characterized by Differential scanning calorimetry (DSC), X-ray diffraction (XRD), Fourier Transfer Infrared Spectroscopy (FTIR), Electrical Impedance Spectroscopy (EIS), Universal Testing and Scanning Electron Microscope (SEM). Incorporation of 35 wt% LiCIO4 shows the highest conductivity with a value of 5.13 x 10-6 Scm-l. Upon the addition of 3 wt% TiO2 the ionic conductivity increased to 1.162 x 10-5 S cm-l. DSC and XRD studies show that the addition nanoparticles reduce the crystallinity of SBE which improve the ion mobility and thus cause the increment of ionic conductivity. Nevertheless, the addition of nanoparticles had different effect on the mechanical properties of SBE; they reduce the percent elongation at break but improve the tensile strength. The FTIR spectra shows the complexation of Li+ with all electron donor atoms in CMC structure but nanoparticles only interact with -0H groups that can be considered as Lewis acid-base interactions. The morphology of the film by SEM showed the homogenous dispersion of nanoparticles in the SBE matrix.

Item Type: Monograph (Student Project)
Creators:
CreatorsID Num.
Norihan, Nabilah HaniUNSPECIFIED
Subjects: Q Science > QD Chemistry > Organic chemistry > Polymers. Macromolecules
Divisions: Universiti Teknologi MARA, Pahang > Jengka Campus > Faculty of Applied Sciences (C)
Item ID: 25185
Uncontrolled Keywords: Biopolymer, Carboxymethyl cellulose, Lithium perchlorate, Nanoparticles, Differential scanning calorimetry, Electrical impedance spectroscopy, Scanning electron microscope
Last Modified: 15 Aug 2019 09:01
Depositing User: Perpustakaan Al-Bukhari UiTM Cawangan Pahang
URI: http://ir.uitm.edu.my/id/eprint/25185

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