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April 16-17, 2018 Las Vegas, Nevada, USA
2
nd
Edition of
Graphene & Semiconductors | Diamond Graphite & Carbon Materials Conference
6
th
Edition of
Smart Materials & Structures Conference
&
Journal of Material Sciences and Engineering| ISSN: 2169-0022 | GDCSM-2018 | Volume: 7
The effect of fabrication technique of thin filmYSZ/GDC based bi-layer solid oxide fuel cell electrolyte
Olotu Olufunsho Oladipo
University of Johannesburg, South Africa
Y
ttria stabilized zirconia (YSZ) and gadolinia doped ceria (GDC) have been reported to be ideal solid oxide fuel cell (SOFC)
electrolyte materials due to their outstanding chemical stability and ionic conductivity properties respectively. Notwithstanding
these properties, YSZ is known for its low ionic conductivity while GDC exhibit high electronic conductivity and vulnerable to
chemical instability. In this study, Anode aluminium oxide-supported thin-film fuel cells having a bi-layered electrolyte consisting of
a GDC layer and YSZ layer were fabricated using plasma enhanced atomic layer deposition PEALD technique and electrochemically
characterized to investigate the effect of the fabrication technique. The result showed that the PEALD yielded pinhole-free and highly
densethin film YSZ/GDC electrolyte which inhibitelectrical shortage and gas leakage. The resulting bi-layered thin-film fuel cell
produced a considerably higher open circuit voltage compared with a thin-film fuel cell with a single-layered GDC or bi-layered YSZ/
GDC electrolyte fabricated via other methods.
lotuzlynx@yahoo.comJ Material Sci Eng 2018, Volume: 7
DOI: 10.4172/2169-0022-C3-098