Nanofiber Composite Cathode In SOFC Application

ISBN-13: 9783659186752 / Angielski / Miękka / 2012 / 128 str.

Ika Dewi Wijayanti; Chen Chia Chou; Chun Feng Huang

Opis

The composite cathode La0.6Sr0.4Co0.2Fe0.8O3-δ(LSCF) powder and Ce0.78Gd0.2Sr0.02O2-δ(GDCSr) nanofiber are investigated for IT SOFC.A mixing method was used to fabricate nanofibers composite cathode by adding various wt.% of GDCSr nanofibers (20, 50, and 80wt.%) into LSCF powder using conventional heating.Nanofibers play an important role to control porosity inside the composite cathode structure.Selective heating of microwave energy was successful to enhance the properties of composite cathode.Microwave energy was used to heat the nanofiber composite cathode with mixing method to improve the performance. Experimental result shows that the cathode polarization resistance decrease, the exchange current density become higher, and the catalytic activity inside structure increase significantly.A sandwich method was investigated to improve nanofiber structure continuity of the mixing method.Enhancement of structure connection between nanofibers and powders causes higher performance of composite cathode made by sandwich method mixing method.

O autorze

Ika Dewi Wijayanti was born on December 2nd,1985 in TanjungPinang,Indonesia.She received her B.S.degree in Department of Mechanical Engineering,in Sepuluh Nopember Institute of Technology(ITS)Surabaya,Indonesia in 2009.She decided to continue her degree in 2010,Advanced Ceramic Laboratory,Department of Mechanical Engineering,NTUST,Taiwan(ROC).