Performance of anode-supported solid oxide fuel cell with La0.85Sr0.15MnO3 cathode modified by sol–gel coating technique

Sr0.92Y0.08TiO3−δ/Sm0.2Ce0.8O2−δ anode for solid oxide fuel cells running on methane

“…In our previous studies [32,35], we reported that the SDC thinfilm formation by sol coating at the electrode/electrolyte interface can improve the electrode performance due to an increase in the number of TPB sites. Recently W.C. Chueh et al [36,37] reported that electrode polarization at the SDC/metal anode are governed by SDC surface area (2 PB) which means triple phase boundary area (3 PB) is not the main electrochemical reaction sites at the SDC/metal anode.…”

“…In electrochemical reactions in an electrode, impedance spectra of the charge-transfer resistances can be distinguished from the gas-phase diffusion spectra by introducing a different molecular weight gas, which changes the diffusion coefficient at the same partial pressure [34,35]. We prepared a disc-type electrolyte with a symmetric SYT anode and introduced 10 vol.% H 2 balanced with He and Ar at 900 C. Fig.…”

Solid Oxide Fuel Cells

“…Sol-gel process has also been widely used for cathode infiltration, such as YSZ or SDC infiltrated LSM [74], LSM infiltrated YSZ [75], copper manganese spinel infiltrated YSZ [76]. Sholklapper et al [75] carefully studied the phase formation for the LSM infiltrated YSZ.…”

“…Short term stability (about 100 h tests) in the anode supported cell indicated that the SDC infiltrated LSCF can significantly improve the performance and stability; however, the detailed mechanism is yet to be determined. Yoon et al [74] deposited a YSZ or samaria-doped ceria (Sm 02 Ce 08 O 2 , SDC) film at the triple-phase boundary (TPB) of LSM/YSZ/gas to increase the number of electrochemical reaction sites, which resulted in a decrease of cathode polarization and increase of cell performance. A maximum power densities of the cell modified by the SDC sol-gel coating were about 0.…”

YSZ films fabricated by a spin smoothing technique and its application in solid oxide fuel cell

“…One efficient method to achieve this objective is to fabricate thin and high-quality electrolyte films. Slurry coating [3][4][5], spin coating [6,7], spray coating [8], tape casting [9], CVD [10], screen-printing [11,12] were several successful methods reported in fabricating electrolyte films. Although high-quality thin-film yttria stabilized zirconia (YSZ) electrolytes have been obtained, most of them need a complex fabrication process such as careful drying, baking and many coating cycles which were done to get perfect films with suitable thickness [12][13][14].…”