02721ntm a2200289 a 4500 vtls000102313 KUKTEM 20251117113349.0 171031t2016 my a f a m 000 0 eng d THE0000177(Local) 201905131634 nazirah 201712261108 nazri 201710311007 fateeha UMP FIST .N35 2016 r Bc. Siti Nur Najwa Mohd Yusof Electrochemical evaluation of fluorination treatment on MNO2 surfaces / Siti Nur Najwa Mohd Yusof Kuantan, Pahang : UMP, 2016 xv, 37 p. : ill. (some col.) ; 30 cm. + 1 CD-ROM Faculty of Industrial Sciences and Technology Project Paper (Bachelor of Applied Science (Hons.) Material Technology) -- Universiti Malaysia Pahang – 2016 Bibliography : p. 35-37 Supercapacitors (SCs) also known as electrochemical capacitor functioning as alternative energy storage is required in most electronic devices, renewable energy system and also in hybrid vehicles that have high demand in these days. Excellent electrochemical performance, environment friendliness and low cost material are needed to fulfil the energy demand by most developed country. In this study, fluorination treatment on manganese oxide (MnO2) is considered as an effective way to develop better energy storage due to its high electronegativity and reactivity when correlate with other element. Hydrothermal method is used to synthesis fluorinated MnO2 sample and the effect of variation of MnO2 type to precursor ratio is investigated on the charge storage ability. The crystallinity and functional groups of the samples was confirmed by the X-ray diffractometry and Fourier transforms infrared spectroscopy (FTIR). The cyclic voltammetry (CV) and galvanostatic charging–discharging (CDC) analysis in 0.5 M K2SO4 electrolyte shows that F--MnO2 gives the highest Cs value of 183.012 F g-1 at scan rate of 5 mV s-1 and 65.04 F g-1 at current density of 0.3 A g-1. The electrochemical impedance spectroscopy shows that the F--MnO2 has the lowest electrode resistances and charge transfer resistance which contributes to high Cs and the high conductivity of electrode. Hence, F--MnO2 is better electrode material for supercapacitors compared to -MnO2, -MnO2 and F--MnO2. Faculty of Industrial Sciences and Technology Dissertations Universities and Colleges Dissertations Theses http://ecollib.ump.edu.my/id/eprint/28053 Access in library only 0 0 0 1 10000 10000 2019-09-04 0 FIST .N35 2016 r Bc. 0000119993 2019-09-04 00:00:00 1 2019-09-04 PSM 0 0 0 1 10000 10000 2019-09-04 0 CD 10899 | FIST .N35 2016 r Bc. 0000119994 2019-09-04 00:00:00 1 2019-09-04 PSM VIRTUA40 7398 7404 VTLSSORT0080*0200*0400*0900*1000*2450*2600*3000*5000*5020*5040*5200*6100*6500*6501*8560*9992