... Laboratory (PNNL). The activation overpotential was investigated through the exchange current density term, which is dependent on the cathode activation energy, the cathode porosity, and the pore size and grain size at the cathode triple phase boundary. The cathode pore size, grain size, and porosity were...

... operating conditions with propane as fuel. single-chamber SOFC doped ceria cathodes La 0.5 Sr 0.5 CoO 3 solid oxide fuel cells electrolytes electrochemical electrodes sintering grain size sol-gel processing nanoparticles X-ray diffraction scanning electron microscopy transmission...

... parameters of the SOFCs. Variations of the thickness of the cathode functional layer and the cathode current collector layer, the grain size of the powders used for applying these layers, and the sintering temperature, can influence the electrochemical performance as such that lower operation temperatures...

...Gang Ju; Kenneth Reifsnider; Xinyu Huang; Yanhai Du Time dependent properties and performance of tubular solid oxide fuel cells were studied numerically and experimentally. The numerical model incorporated local characteristics such as porosity, tortuosity, grain size, and conductivity and was used...