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The Effect of Using Nano NiO Powder Made by Pulsed Wire Evaporation (PWE) Method on SOFC Anode Functional Layer  

Kim, Hae-Won (Fuel Cell Research Center, Korea Institude of Energy Research)
Kim, Dong-Ju (Fuel Cell Research Center, Korea Institude of Energy Research)
Park, Seok-Joo (Fuel Cell Research Center, Korea Institude of Energy Research)
Lim, Tak-Hyoung (Fuel Cell Research Center, Korea Institude of Energy Research)
Lee, Seung-Bok (Fuel Cell Research Center, Korea Institude of Energy Research)
Shin, Dong-Ryul (Fuel Cell Research Center, Korea Institude of Energy Research)
Yoon, Soon-Gil (Dept. of Material Science and Engineering, Chungnam National Univ.)
Song, Rak-Hyun (Fuel Cell Research Center, Korea Institude of Energy Research)
Publication Information
Transactions of the Korean hydrogen and new energy society / v.20, no.6, 2009 , pp. 485-491 More about this Journal
Abstract
In present work, NiO/YSZ anode functional layer was prepared by nano NiO powder and 8YSZ powder. The nano NiO powders were made by Pulsed wire evaporation (PWE) method. Nano NiO- YSZ functional layer was sintered at the temperature of $900-1400^{\circ}C$. The prepared functional layer was characterized by scanning electron microscopy (SEM) and electrochemical impedance spectroscopy. The nano NiO- YSZ anode functional layer sintered at $1300^{\circ}C$ shows the lowest polarization resistance. Nano NiO- YSZ anode functional layer shows about two times smaller polarization resistance than the anode functional layer made by commercial NiO-YSZ powders. Based on these experimental results, it is concluded that the nano NiO-YSZ cermet is suitable as a anode functional layer operated at $800^{\circ}C$.
Keywords
SOFC(solid oxide fuel cell); Anode; Functional layer; Nano powder; NiO; Yttria-stabilized zirconia(YSZ); Polarization resistance;
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Times Cited By KSCI : 1  (Citation Analysis)
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