Citation

Sun, C. C. and You, Ah Heng and TEO, L. L. and Thong, Li Wah (2018) Effect of Al2O3 in poly(methyl methacrylate) composite polymer electrolytes. In: 3RD INTERNATIONAL CONFERENCE ON THE SCIENCE AND ENGINEERING OF MATERIALS (ICOSEM 2017).

Text 2.pdf - Published Version Restricted to Repository staff only Download (984kB)

Abstract

In this work, the effect of inert fillers on poly(methyl methacrylate) (PMMA) composite polymer electrolytes (CPEs) are investigated. The PMMA–LiCF3SO3–EC–Al2O3 composite polymer electrolytes were prepared using solution casting method at room temperature. Lithium trifluoromethanesulfonate (LiCF3SO3) is used as the electrolyte salt which plays an important role in Li ion transfer. In order to soften the polymer matrix, ethylene carbonate (EC) is introduced into the CPEs to help in the disassociation of lithium salt ion pairs. Nano sized aluminium oxide (Al2O3) is then incorporated to enhance mechanical strength and ionic conductivity of the polymer electrolyte. The optimum of 2 wt.% 50 nm Al2O3 was added into the PMMA polymer electrolyte sample. Through Electrochemical Impedance Spectroscopy (EIS) measurements, the highest ionic conductivity at room temperature is determined as 1.52×10-4 S/cm. FTIR spectra analysis showed CH2 twisting mode at 1383.43 cm-1, C=O stretching mode at 1721.56 cm-1 which proven the interaction between host polymer and lithium salt and CH3 stretching mode at 2981.34 cm-1. XRD analysis had also been performed to study the structural behaviour of the PMMA polymer electrolyte. The intense peak at position 2θ angle of 15.04°, 30.92° and 45.58° occur upon interaction with Al2O3. Lastly, the surface morphology is studied through SEM+EDX analysis.

Item Type:	Conference or Workshop Item (Paper)
Uncontrolled Keywords:	Electrolytes,PMMA, Al2O3, ionic conductivity, FTIR, XRD, SEM+EDX
Subjects:	Q Science > QR Microbiology
Divisions:	Faculty of Engineering and Technology (FET)
Depositing User:	Ms Rosnani Abd Wahab
Date Deposited:	23 Mar 2021 23:01
Last Modified:	23 Mar 2021 23:01
URII:	http://shdl.mmu.edu.my/id/eprint/7538

Downloads

Edit (login required)