Microtech2010 2010

Synthesis of Nano-Sized Nio Powder for Anode Functional Layer of Sofc by Using Pulsed Wire Evaporation (PWE) Method

T-H Lim, H-W Kim, S-J Park, S-B Lee, R-H Song, D-R Shin
Korea Institute of Energy Research, KR

Keywords: solid oxide fuel cell, anode, functional layer, nano powder, NiO, YSZ, activation electrode


In present work, anode functional layer for efficient SOFC was synthesized by using nano NiO powder made by pulsed wire evaporation (PWE) method and micro 8YSZ powder. Nano NiO-micro YSZ Anode functional layer was coated by dip coating method and sintered at the temperature of 900-1400 . The morphology and electrical property of synthesized anode functional layer was analyzed by scanning electron microscopy (SEM) and Electrochemical Impedance Spectroscopy. The nano NiO-micro YSZ anode functional layer sintered at 1300 showed the lowest polarization resistance and exhibited about two times smaller polarization resistance than anode functional layer made by micro NiO-YSZ powders. Based on these experimental results, it can be concluded that the nano NiO-micro YSZ cermet can be a good candidate material of SOFC as an efficient anode functional layer operated at 800 .
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