Low-temperature SOFC with thin film GDC electrolyte prepared in situ by solid-state reaction

Communication: Different behavior of Young's modulus and fracture strength of CeO2: Density functional theory calculations

“…A scanning electron microscopy (SEM) image of gadolinia-doped ceria published by Tsoga et al 48 showed that the defect size is about 1.0 μm. Using SEM, Leng et al 49 showed that the gadoliniadoped ceria defect was about 2.0 μm. According to these experimental data, we estimate the fracture strength as follows by using Eq.…”

Tailoring gadolinium-doped ceria-based solid oxide fuel cells to achieve 2 W cm−2 at 550 °C

“…The former often uses expensive deposition devices, such as pulsed laser deposition 12 that many researchers have chosen to prepare the thin film, and the latter requires complex cell fabrication processes and has the possibility of thermal expansion mismatch between the GDC and the buffer layers. The dip-coating method is one of the most cost-effective wet-coating processes [16][17][18] , but accurate thickness control and thin layer fabrication are limited. Accordingly, we attempted to deposit the GDC thin electrolyte by controlling the compositions of the electrolyte slurries in the dip-coating method in order to reduce the ohmic loss.…”

“…Despite the numerous studies on each part (anode, cathode and electrolyte), high-performance LT-SOFCs, especially ceriabased LT-SOFCs [35][36][37][38] , have been rarely reported with few exceptions: Wachsman et al 4 39 and Choi et al 40 and Park et al 41 recently reported over 1.2 W cm À 2 at 550°C in a cell with a PrBa 0.5 Sr 0.5 Co 1.5 Fe 0.5 O 5 þ d (PBSCF05) cathode. Here, we report an original cell design, the core/shell-fibre-structured BSCF-GDC cathode | thin GDC electrolyte | nanocomposite Ni-GDC AFL | Ni-GDC anode fuel cell to achieve high and stable performance GDC-based LT-SOFCs.…”

La1-xSrxCo1-yFeyO3-d (LSCF) Composite as Durable Cathode Materials for Intermediate-Low Temperature Solid Oxide Fuel Cell: Research Review

“…Kaedah pengisaran bebola merupakan antara kaedah penghasilan serbuk katod komposit yang sering digunakan (Guo et al 2009;Leng et al 2004;Leng et al 2008;Lin & Barnet 2008;Zhang et al 2009). Pelarut organik seperti etanol, propanol dan pengikat organik dicampurkan dengan serbuk bahan katod dalam proses pengisaran ini.…”

“…Masalah ini boleh diatasi melalui pemilihan bahan, rekabentuk sel dan keadaan operasi yang sesuai (Thydén 2008 (Viswanathan & Scibioh 2007) pembawa cas ionik dan elektronik (elektron dan/atau lohong) seperti lantanum strontium kobalt ferit (LSCF) telah digunakan bagi melebarkan kawasan sempadan tiga fasa ini dan membantu meningkatkan prestasi SFOP (Fergus et al 2009;Riess 2003). Buat masa kini, bahan katod yang berpotensi tinggi dan semakin berkembang penggunaannya ialah katod perovskit LSCF (Beckel et al 2006;Lee et al 2009;Leng et al 2004;NoorAshrina et al 2009;Raj et al 2004). Katod perovskit merupakan pengkonduksi ionik dan elektronik serta mempunyai aktiviti pemangkin yang baik bagi membolehkan tahap penurunan oksigen yang tinggi.…”