Ahn, Young Rack Park, Chong Rae Jo, Seong Mu Kim, Dong Young 2024-01-21T01:31:04Z 2024-01-21T01:31:04Z 2021-09-05 2007-03 0003-6951 https://pubs.kist.re.kr/handle/201004/134586 Electrochemical capacitors based on RuO2 were prepared onto electrospun TiO2 nanorods. Further heat treatment of the TiO2 at 800 degrees C under nitrogen was found to greatly improve the electrochemical performance of the RuO2 electrodes, especially at fast charge-discharge rates. The specific capacitance was found to decrease by only 33% when the scan rate increased from 10 to 1000 mV s(-1) (from 687 to 460 F g(-1)). The characteristic response time of the RuO2 electrode was found to be 0.15 s when a heat-treated TiO2 substrate was used, which is 20 times better than that of the pristine TiO2 used. (c) 2007 American Institute of Physics. English AMER INST PHYSICS Enhanced charge-discharge characteristics of RuO2 supercapacitors on heat-treated TiO2 nanorods Article 10.1063/1.2715038 1 APPLIED PHYSICS LETTERS, v.90, no.12 APPLIED PHYSICS LETTERS 90 12 N scie scopus 000245135800064 2-s2.0-33947578265 Physics, Applied Physics Article ELECTROCHEMICAL CAPACITANCE IMPEDANCE SPECTROSCOPY RUTHENIUM OXIDE ELECTRODE Supercapacitor RuO2 TiO2