ıx. Poliymer Science and TEchnology Congress, Ankara, Turkey, 16 - 18 September 2024, vol.1, no.1, pp.242, (Summary Text)
Energy storage technologies are gaining more and more importance due to the increasing energy
demand in recent years. The energy crisis and the harmful effects of fossil fuels on the environment
have led to the development of new technologies for highly efficient, easily manufactured, and lowcost
energy storage devices. Supercapacitors are ideal energy storage devices because of their highpower
density, high charge/discharge rates, long cycle life, and excellent cycle stability. The
supercapacitor electrode active material can consist of various conductive polymers, carbon materials,
and metal oxides [1]. Conducting polymers are used as electrodes in supercapacitors due to their high
capacitance, good electrical conductivity, stability under environmental conditions, low cost, and easy
production [2]. Carbon materials are used in supercapacitors because of their high conductivity and
electroactive areas [3]. Metal oxides are also used to provide strong faradaic reactions by exhibiting
low internal resistance [4]. This study chemically synthesized supercapacitor active material using
polyaniline, graphene, and metal oxide. The modified active material was characterized using FTIR and
SEM techniques. Graphene/conducting polymer/metal dioxide supercapacitor device performance was
evaluated by cyclic voltammetry, galvanostatic charge-discharge, and electrochemical impedance
spectroscopy techniques.