Solid Oxide Fuel Cells (SOFC) running on biogas or bio-syngas promise highly efficient and carbon neutral power generation from biomass. Recently the number of commercially available SOFCs has increased. This paper aims to compare different available 10 cm x 10 cm SOFC types. The anode-supported SOFCs have been tested in simulated biosyngas at moderate working temperatures. The cells have been characterized at various temperatures and anode gas flow compositions with electrochemical impedance spectroscopy (EIS). The recorded spectra were evaluated with distribution of relaxation times (DRT) analysis in order to interpret the electrochemical processes that limit the performance of the cells. The results of the different SOFC types have been compared with each other and their respective strength and weakness are discussed.     «

Solid Oxide Fuel Cells (SOFC) running on biogas or bio-syngas promise highly efficient and carbon neutral power generation from biomass. Recently the number of commercially available SOFCs has increased. This paper aims to compare different available 10 cm x 10 cm SOFC types. The anode-supported SOFCs have been tested in simulated biosyngas at moderate working temperatures. The cells have been characterized at various temperatures and anode gas flow compositions with electrochemical impedan...     »