Electrochemical characterization of activated carbon–ruthenium oxide nanopa…

Abstract The high specific capacitance of ruthenium oxide (denoted as RuOx) nanoparticles prepared by a modified sol–gel method with annealing in air for supercapacitorswas demonstrated in thiswork. The specific capacitance of activated carbon (denoted asAC) measured at 5 mA/cm2 is significantly increased from 26.8 to 38.7 F/g by the adsorption of RuOx nanoparticles with ultrasonic weltering…