Kim, IH Kim, JH Cho, BW Lee, YH Kim, KB 2024-01-21T03:30:51Z 2024-01-21T03:30:51Z 2021-09-02 2006-04 0013-4651 https://pubs.kist.re.kr/handle/201004/135620 An amorphous and hydrous vanadium oxide (V2O5 center dot xH(2)O) thin film of approximate 6-nm thickness was electrochemically prepared onto a carbon nanotube (CNT) film substrate with a three-dimensional porous structure on a nanometer scale (denoted as a V2O5 center dot xH(2)O/CNT film electrode) for pseudocapacitor application. From cyclic voltammetry and galvanostatic discharging experiments in an organic electrolyte (LiClO4 in propylene carbonate), the V2O5 center dot xH(2)O/CNT film electrode showed a specific Li-ion capacitance of 910 F/g at a potential scan rate of 10 mV/s and a specific capacity of 540 mAh/g at a current density of 10 A/g, with respect to the mass of V2O5 center dot xH(2)O. Compared with V2O5 center dot xH(2)O prepared onto a Pt plate substrate (denoted as a V2O5 center dot xH(2)O thin-film electrode), the V2O5 center dot xH(2)O/CNT film electrode showed a threefold higher specific Li-ion capacitance. The improved specific Li-ion capacitance of V2O5 center dot xH(2)O in the V2O5 center dot xH(2)O/CNT film electrode is attributed to its electrode construction comprising a very thin film of V2O5 center dot xH(2)O on the conductive CNT film substrate with a three-dimensional nanoporous structure. (C) 2006 The Electrochemical Society. English ELECTROCHEMICAL SOC INC ELECTROSTATIC SPRAY DEPOSITION HYDROUS RUTHENIUM OXIDE X-RAY-ABSORPTION THIN-FILM ELECTRODE MATERIAL NICKEL-OXIDE LITHIUM INSERTION SUPERCAPACITOR BEHAVIOR COMPOSITE ELECTRODES HOST MATERIALS Synthesis and electrochemical characterization of vanadium oxide on carbon nanotube film substrate for pseudocapacitor applications Article 10.1149/1.2188307 1 JOURNAL OF THE ELECTROCHEMICAL SOCIETY, v.153, no.6, pp.A989 - A996 JOURNAL OF THE ELECTROCHEMICAL SOCIETY 153 6 A989 A996 scie scopus 000237229300007 2-s2.0-33646387436 Electrochemistry Materials Science, Coatings & Films Electrochemistry Materials Science Article ELECTROSTATIC SPRAY DEPOSITION HYDROUS RUTHENIUM OXIDE X-RAY-ABSORPTION THIN-FILM ELECTRODE MATERIAL NICKEL-OXIDE LITHIUM INSERTION SUPERCAPACITOR BEHAVIOR COMPOSITE ELECTRODES HOST MATERIALS Vanadium Oxide Carbon Nanotube Pseudocapacitor Electrochemical capacity