Abstract:
The synthesis of barium chloride and lanthanum nitrate doping with SFT
based composite material as an effective cathode material in solid oxide fuel
cell. As fuel cell is an efficient device for its clean energy production. To
enhance the efficiency of such type of clean energy devices an efficient
electrode material is required for its proper working. In fuel cell, there is also
a need to study the behavior of liquid fuel as well as their performance by
using proper electrode material and catalyst. For this purpose to synthesize
cathode material at nanoscale for SOFC to have high electrical conductivity
and power density at low temperature. This approach is to prepare
nanomaterial of the cathode for SOFCs that are low cost and operate
efficiently at low temperature. A series of three samples of BaSrFeTi (BSFT)
and three samples of LaSrFeTi (LSFT) nanomaterials for cathode has been
fabricated and investigated. The variety of nanocompsite cathode materials
were synthesized with different compositions by the Sol-Gel method, and
sintered at 800 0C for four hours, and then grinded. These samples were
characterized by XRD, EDX, SEM, and DC conductivity measurement. The
prepared samples also shows at low temperature better electrical
conductivities of BSFT is 0.13 Scm-1
at 650 0C and LSFT is 0.10 Scm-1
at 650
0C. The XRD results that both material Ba0.1 Sr0.1 Fe0.2 Ti0.6 (BSFT) and La0.1
Sr0.1 Fe0.2 Ti0.6 (LSFT) has a crystalline structure with three-phase(hexagonal,
monoclinic, monoclinic), and their average crystalline size is 26.0 nm and
BSFT has crystalline structure with tow-phase(hexagonal, monoclinic) their
average crystalline size is 38.0 nm. The SEM results of samples represent that
materials are homogenous and porous. The EDX analysis of samples
successfully show their elemental composition and conformity
