Fig. 3: Long-term stability of direct methane PCFC.
From: Direct methane protonic ceramic fuel cells with self-assembled Ni-Rh bimetallic catalyst
a Long-term stability evaluations of electrochemical performance and catalytic activity for 500 h under S/C = 1 conditions at 500 °C, where the direct methane PCFC operated with a fuel composition of 25% CH4, 25% H2O and 50% Ar at the fuel electrode with a total flow rate of 100 sccm and air at the cathode as an oxidant (100 sccm) under the constant cell voltage of 0.75 V. b Postmortem EDS analysis after long-term operation.
