Hydrogen is a clean and renewable fuel for a sustainable
energy economy. Its energy applications are increasing with the
growing of an environmental conscience and the necessity of
alternative energy systems.
Solid Oxide Fuel Cell (SOFC) is an emerging technology
in hydrogen-based energy production, because of its high
performance, high power density, high efficiencies and reduced
emissions over conventional power generation technologies.
Currently, planar anode supported cells are the most promising
SOFCs, thanks to their high energy density and the low
fabrication costs, if compared with tubular SOFCs.
The aim of the present work is to study the physical
characterisation and the electrochemical behaviour of planar
anode supported SOFCs, produced through different
techniques: tape casting and screen printing. SEM, XRD and
microanalyses have been used to investigate the microstructure
of the electrodes and electrolyte before and after services.
The electrochemical behaviour of every single cell stack
(anode-electrolyte-cathode) has been studied through Open
Circuit Voltage (OCV) measurements, and Polarisation
Analysis (I-V performances) at the temperature range between
750 and 900°C, using a specific device developed in our
Experimental results show the influence of microstructure
on electrochemical behaviour and clear up the effect of
different solutions adopted to fabricate electrolyte/electrode
interlayer on the cell performance.