Modeling of SOFC running on partially pre-reformed gas mixture

► Electrochemical oxidations of both H2 and CO fuel are considered in SOFC. ► Two chemical models are compared in SOFC modeling. ► Running on pre-reformed hydrocarbon fuels, the SOFC performance is found to decrease slightly at a higher gas velocity. ► An alternative method is proposed to determine the open-circuit potential of SOFC running on pre-reformed hydrocarbon fuels. ► Electrochemical reactions are observed at the open-circuit potentials of SOFC.