Rapid Atmospheric-Pressure-Plasma-Jet SinteredNanoporous Fe2O3/Carbon Nanotube Composites: Application to Supercapacitors

• Main Authors: Po-Yen Shen, 沈柏言
• Other Authors: 陳奕君
• Format: Others
• Language: zh-TW
• Published: 2015
• Online Access: http://ndltd.ncl.edu.tw/handle/42a53b

碩士 === 國立臺灣大學 === 光電工程學研究所 === 103 === An iron oxide/carbon nanotube mixture pastes were prepared by dissolving Fe2O3 nano-powder and carbon nanotubes in ethanol and terpineol with ethyl cellulose as a binder. The pastes were then screen-printed on the glass substrates, followed by a sintering process using atmospheric pressure plasma jet (APPJ.) The resultant films revealed nanoporous feature. The carbon content decreased as the APPJ sintering time increased and the resistivity decreased by two orders of magnitude. 5 wt% CNT doped Fe2O3 nanoporous films revealed a better conductivity. The sintered Fe2O3/CNT composites were then used as the electrodes of a supercapacitor. A rapid charging/discharging was demonstrated. In the second part of the experiment, an APPJ T-shape expander was installed at the exit of the jet to expand the effective APPJ treatment area. The APPJ treatment area can be extended to an area with a diameter of 4 inches. The steady state temperature at the outer rim of the expander can reach 400 °C. The effectiveness of the plasma influence decreased as the distance increased from the center line of the plasma jet.