Abstract:
A new kind of single layer fuel cell (SLFC) based on a composite material of
Li0.1Ni0.6Zn0.3 (LNZ) and Ce0.8Sm0.2O2 (SDC) with alkali carbonates (single, binary and
ternary) is successfully fabricated and characterized. In Hybrid ion conduction we
required the material which is suitable for the movement of oxide ion and protonic ion.
Therefore, in this research work, composite materials based on ionic (SDC-alkali
carbonates) and electronic (LNZ) conductor are mix by using ball milling in percentage
proportion of 50:50, 20:80, 40:60, 60:40 and 80:20 are developed for the fuel cell by coprecipitation
and solid state reaction method and then hybrid ion conduction of the
prepared composite material are studied. It is analyzed that the composite material is
based on the 60 wt.% LNZ and 40 wt.% (LN-SDC) has maximum ionic and electronic
conduction. As this composite material has maximum conductivity 2.29 Scm-1 at
(6500C-6700C) and highest power density 420mWcm-2. The structural properties of
prepared composite materials are analyzed by X- Ray diffraction (XRD) (crystalline
structure with two phases i.e. cubic and hexagonal wurtzite with average crystallite size
of 64 nm).So it can analyze that the ionc and electronic conduction play some key role
in fuel cell functions and fuel- electricity conversion.
