Programme Book - UPM - Universiti Putra Malaysia

P08 ELECTRODEPOSITION OF POLYPYRROLE/REDUCEDGRAPHENE OXIDE/IRON OXIDE NANOCOMPOSITE FORSUPERCAPACITOR APPLICATIONY.C. Euu, H.N. Lim*Department of Chemistry, Faculty of Science, Universiti Putra Malaysia, 43400 UPMSerdang, Selangor, MalaysiaCorresponding author: hongngee@upm.edu.myIn this research, polypyrrole (PPy) was reinforced with reduced graphene oxide (rGO)and iron oxide to achieve electrochemical stability and enhancement. The ternarynanocomposite was prepared using a facile one-pot chronoamperometry approach,which is inexpensive and experimentally-friendly. The x-ray diffraction(XRD) profileshowed the presence of PPy and a combination of Fe 2 O 3 and Fe 3 O 4 . The typical peakof graphene oxide (GO) was absent from XRD, indicating reduction of GO. This wasalso confirmed by the presence of a peak at 26 o , indicating π-π stacking interaction ofrGO sheets. The cyclic voltammetry (CV) analysis illustrated enhanced current for thenanocomposite by more than twofold and sevenfold compared to its binary andindividual counterparts, respectively. After the 20 th cycle, the ternary nanocompositeremained stable and still adhered onto its substrate. The initial and final specificcapacitances were 115.3 F/g and 102.2F/G after 200 cycles. The sample exhibitedexcellent specific capacitance retention as there was only 11.4% of reduction.23 |16 th Industrial Chemistry Seminar: Chemistry- A Passport to a Brighter Future