Facile synthesis and electrochemical properties of RuO2 nanofibers with ionically conducting hydrous layer
- Facile synthesis and electrochemical properties of RuO2 nanofibers with ionically conducting hydrous layer
- 현태선; Harry L. Tuller; 윤두영; 김호기; 김일두
- *2010기관고유사업 평가에 반영 완료
- Issue Date
- Journal of materials chemistry
- VOL 20, NO 41, 9172-9179
- The facile synthesis, by electrospinning of highly conductive RuO2 fiber mats as the conducting core of
electrochemical capacitors, is reported. Electrospun RuO2 fiber mats, calcined at 400 ℃, exhibited
highly porous morphologies composed of crystalline RuO2 nano-particles with an average particle size
of 10 nm. The highly conducting (σ = 288 S cm-1) fiber mats were used as the basis of a hybrid
electrochemical capacitor in which the fiber mats served as the conducting core for electrochemically
deposited hydrate RuO2ㆍnH2O overlayers. These electrochemical capacitors exhibited superior
characteristics: a high specific capacitance of ~886.9 F g-1 (based on the mass of the hydrous RuO2
coating layer) at scan rate of 10 mV s-1 and high rate capability with a capacity loss of only 30% from
10 to 2000 mV s-1. This is attributed to the superior electron transport pathways provided by the fiber
mat core to the upper ionically conducting hydrous RuO2 coating layer.
- Appears in Collections:
- KIST Publication > Article
- Files in This Item:
There are no files associated with this item.
- RIS (EndNote)
- XLS (Excel)
Items in DSpace are protected by copyright, with all rights reserved, unless otherwise indicated.