Microfabrication of thin film SOFC with 3D microperiodic porous electrodes

Title
Microfabrication of thin film SOFC with 3D microperiodic porous electrodes
Authors
최선희황철성이종호이해원김주선손지원김혜령
Keywords
sputtering; YSZ thin film; solid oxide fuel cell; 3D microperiodic; polystyrene
Issue Date
2008-10
Publisher
214th ECS (The Electrochemical Society) Meeting
Abstract
Recently, several new electrode architectures have been developed in order to create effective and durable electrode structures for low temperature SOFCs. Among these electrodes, 3D microperiodic porous mixed ionic/electronic conductors (MIECs) are most attractive for SOFC and catalysis. The degree of extension of the active electrochemical reaction sites depends on the rate of defect transport through the solid MIEC, the rate of gas transport through the pores, and the catalytic activity of the interfaces. To date, the porosity of electrodes is controlled via the use of pore formers, and 3D arrangements can be obtained using close packed arrays of polystyrene monodisperse spheres as template. Several mixed oxides, i.e. doped zirconia, NiO-YSZ composite, and LSM-YSZ composite have been prepared and characterized by X-ray diffraction (XRD), scanning electron microscopy (SEM), nitrogen adsorption and mercury porosimetry. The electrochemical tests have been performed by impedance spectra and electrode/electrolyte interfacial polarization resistance.
URI
http://pubs.kist.re.kr/handle/201004/35838
Appears in Collections:
KIST Publication > Conference Paper
Files in This Item:
There are no files associated with this item.
Export
RIS (EndNote)
XLS (Excel)
XML


qrcode

Items in DSpace are protected by copyright, with all rights reserved, unless otherwise indicated.

BROWSE