Article ID | Journal | Published Year | Pages | File Type |
---|---|---|---|---|
1293836 | Journal of Power Sources | 2010 | 7 Pages |
This study reports the facile synthesis of highly conductive SrRuO3(SRO)–RuO2 composite nanofibre mats and their potential suitability for application in electrochemical capacitors as an active electrode material. SRO–RuO2/poly(vinyl acetate) composite nanofibre mats are electrospun on to a Au-coated SiO2/Si substrate and a Ti substrate, subsequently thermocompressed at 60 °C, and calcined at various temperatures (from 350 to 850 °C). The calcined SRO–RuO2 nanofibre mats exhibit porous morphologies and bundle shapes composed of multiple-fibrils with a nanoparticle diameter ranging from 20 to 50 nm. Single SRO–RuO2 nanofibre and multiple SRO–RuO2 nanofibre mats show high electrical conductivity of 476 and 40.8 S cm−1, respectively. Pseudocapacitors using SRO–RuO2 nanofibre mats calcined at 350 °C exhibit a high specific capacitance of 192 F g−1 at a scan rate of 10 mV s−1. The superior capacitance retention (83.4%) of the SRO–RuO2 nanofibre mats is maintained even at rapid scan rate of 1000 mV s−1.