Facile synthesis of highly conductive Pt nanofiber mats for a high-rate redox supercapacitor

Title
Facile synthesis of highly conductive Pt nanofiber mats for a high-rate redox supercapacitor
Authors
최승훈현태선이혜진장성연오성근김일두
Issue Date
2010-01
Publisher
Electrospin2010, International Conference on Electrospinning
Abstract
This study reports the fabrication and characterization of highly conductive Pt fiber mats as the conducting core of a high-rate redox-supercapacitor. Electrospun Pt fiber mats calcined at 350 C exhibited high electrical conductivity of 412 S/cm as well as highly porous morphologies composed of crystalline Pt nano-particles with an average particle size of 10 nm. The Pt fiber mats served as the conducting core for electrochemically deposited hydrous RuO2 overlayers. The hybrid electrode utilizing hydrous RuO2-coated Pt fiber mats showed a high specific capacitance of ~ 409.4 F g-1 at 10 mV/sec (based on the mass of the hydrous RuO2 coating layer) and high rate capability with a capacity loss of only 21.4% from 100 to 1000 mV/sec. This is attributed to the fast electron transport pathways offered by the Pt fiber mats to the upper ionically conducting hydrous RuO2 coating layer.
URI
http://pubs.kist.re.kr/handle/201004/38854
Appears in Collections:
KIST Publication > Conference Paper
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