Cho, WHWHChoCheng, ICICChengJIAN-ZHANG CHEN2023-03-062023-03-0620230013-4651https://scholars.lib.ntu.edu.tw/handle/123456789/628940Reduced graphene oxide (rGO)-polyaniline (PANI) supercapacitors (SCs) are tested with 1 M LiCl, Li2SO4, and H2SO4 electrolytes. The SC performance is evaluated by electrical impedance spectroscopy, cyclic voltammetry (CV), and galvanostatic charging/discharging measurements. Electrochemical experiments indicate that rGO-PANI SCs with lithium salt electrolytes show a large pseudocapacitance (PC) effect whereas that with H2SO4 electrolyte shows a large electrical double-layer capacitance (EDLC) effect. The rGO-PANI SC with H2SO4 electrolyte has the largest areal capacitance of 48.83 mF/cm2, whereas those with LiCl and Li2SO4 electrolytes have the areal capacitances of 31.69 mF/cm2 and 22.35 mF/cm2, respectively. After a 10,000-cycle CV stability test, the rGO-PANI SC with Li2SO4 electrolyte shows some ion embedding, resulting in better cycling stability than those of SCs with LiCl and H2SO4 electrolytes.PRESSURE-PLASMA-JET; ELECTROCHEMICAL PERFORMANCE; POLYANILINE; COMPOSITES; ELECTRODES; BEHAVIOR; POLYMER; CARBONSjournal article10.1149/1945-7111/acb38b2-s2.0-85147142275WOS:000920620700001https://api.elsevier.com/content/abstract/scopus_id/85147142275