Characterization of an Anode‐Supported Planar Solid Oxide Fuel Cell with a Porosity Concentration Gradient

INFLUENCE OF SINTERING TEMPERATURE ON NiO-SDCC ANODE FOR LOW-TEMPERATURE SOLID OXIDE FUEL CELLS (LT-SOFCs)

“…The surface morphologies of pellets sintered at 700°C and 800°C shown in Figures 5b and 5c revealed good bonding between the particles and a uniform particle size distribution and pore size. These properties improved gas diffusion during the electrochemical test [11]. Grain growth increased with the increase in sintering temperature, particularly in pellets sintered at 900°C and 1000°C, as shown in Figures 5d and 5e, respectively.…”

“…% (as pore former) using an agate mortar to prepare the anode-supported green pellets [11,22]. The mixture was then ground and sieved through 212 µm woven wire to obtain a fine powder.…”

“…Anode microstructural properties, such as porosity and pore size distribution should be controlled and improved after sintering process to enhance the performance of anode-supported SOFCs [9,10]. Moreover, porosity is one of the significant factors that can influence triplephase boundary (TPB) density [11,12]. Electrochemical reactions can only occur at the TPB when the oxygen ion conductor (the electrolyte), the electron-conducting metal phase, and the gas phase come into contact with each other.…”