Abstract:
Energy is one of the essential factors for human progress and is the bedrock of
present-day improvement, however there is an extraordinary setback in the supply of
energy assets everywhere throughout the world because of increment sought after of
energy. There are two fundamental energy assets that are utilizing to satisfy our energy
necessity. These are, Non-sustainable energy source assets are limited and environmentally
poison then again sustainable energy source assets are unlimited and friendly for
environment. The overarching energy crises on the planet must be handled by utilizing
reasonable energy sources.
Fuel cell is one of the sustainable energy source assets which could be the elective energy
source with no natural issue. This theory gives a methodology how to grow new
nanocomposite electrolyte and cathode materials for low temperature strong oxide energy
component (LTSOFC) based on nanocomposite way to deal with lower the working
temperature of SOFC.
Nano composite electrolyte ‘samarium doped Ceria (SDC)’ has been synthesized for
LTSOFC by using co-precipitation method with precipitating agent of (sodium
carbonates). Li, Ni, Cu carbonates are mixed with zinc nitrate by using solid state reaction
method for solid oxide fuel cell electrodes.
The structure and morphology of the synthesized nanocomposite electrolyte and electrode
was examined by X-Ray diffraction (XRD). The Fuel Cell Performance was tested at
temperature (300-650 °C). The Ionic Conductivity of the sintered nanocomposite was
measured by four probe DC method.
XRD patterns of the samples reveal that synthesized materials are nanostructured. The SDC
has single phase material of cubic structure while the LNCZ material has two phase
material, first phase is zinc oxide (ZO) of hexagonal structure and second is nickel oxide
(NiO) of cubic structure. The ionic conductivity of 0.13S/cm at 650°C for 𝐶𝑒0.8𝑆𝑚0.2 and
1.65 S/cm at 650°C for (𝐿𝑖0.18𝐶𝑢0.18𝑁𝑖0.32𝑍𝑛0.32) has been achieved. The fuel cell
performance was checked at the temperature of 400 °C to 650 °C with three layers of cell
in which smarium based nanocomposite material as an electrolyte. It gives excellent
performance with maximum power density 525mW𝑐𝑚−2 at 650 °C temperature.