Electrochemical performance of gadolinia-doped ceria (CGO) electrolyte thin films for ITSOFC deposited by spray pyrolysis

INFLUENCE OF SINTERING TEMPERATURE ON THE POLARIZATION RESISTANCE OF LaO20.6SrO20.4CoO20.2FeO20.8O3-δ - SDC CARBONATE COMPOSITE CATHODE

“…The existence of CO 3 2− phase in the LSCF-SDCC cathode composite is crucial because the CO 3 2− phase functions as a co-ionic conductor (O 2− and proton H + ) [16]. However, given the existence of the CO 3 2 phase, the sintering temperatures should be controlled to avoid exceeding the boiling point of CO 3 2 itself.…”

“…However, given the existence of the CO 3 2 phase, the sintering temperatures should be controlled to avoid exceeding the boiling point of CO 3 2 itself. Otherwise, all CO 3 2 phases would be heated up, melted, and would disappear from the composite cathode. Figure 2 shows the result of EDS analysis for the sintered cathode composite film at five different temperatures.…”

“…Studies on this field have resulted in novel ideas, such as reducing the operating temperature of SOFC by introducing new composite materials and nano materials [2]. Reducing the operating temperature into the intermediate zone (500°C to 800°C) lowers energy consumption, material degradation risk, and operational cost of SOFCs [3].…”

Control and manipulation of nanoparticles for fabrication of metal matrix composites

“…The instability occurs at the three phase contact line (gas, liquid, and particle) [129]. At higher temperatures, the evaporation rate is higher, thus leading to the reduction of the droplet size during travel [130]. A complete evaporation of relatively fine droplets may occur before they even reach the surface [131], which results in a loss of particles and prevents deposition.…”

“…The atomized droplet size, which significantly influences the deposition structure and the spray quality, is mainly determined by the liquid properties (surface tension and density) and the nozzle vibration frequency [93]. Moreover, spraying parameters, such as the nozzle vibration frequency, flow rate, deposition surface temperature [94], spraying air pressure [95], and spraying distance [86], affect the final deposition structure.…”