BaZr0.2Ce0.8−xYxO3−δ solid oxide fuel cell electrolyte synthesized by sol–gel combined with composition-exchange method

Influence of the autocombustion synthesis conditions and the calcination temperature on the microstructure and electrochemical properties of BaCe0.8Zr0.1Y0.1O3−δ electrolyte material

“…and after stirring (a.s.) the suspension for 20 min a , heating treatment and compacity of the pellets obtained for the four synthesis. values [9,13,15,[18][19][20][24][25]27,[29][30][31]33,[35][36]40,51,[53][54]: the best conductivity is obtained for the synthesis issued from only metal nitrate precursors in stoichiometric conditions with a conductivity reaching 1.3 10 −2 Scm −1 at 700 °C (curve c), and the pellet issued from mixed precursor in fuel rich conditions (i.e. in conditions allowing to avoid the calcination step) exhibits a conductivity of 1.0 10 −2 Scm −1 at 700 °C (curve b).…”

“…Nevertheless, the composition is not the only pertinent parameter, and the link between microstructure and electrochemical properties of SOFC materials have been widely studied: tuning of the microstructure, and more precisely of the grains size, has been reported, either by changing the calcination temperature for LSCF perovskite anodes [21] and LSF cathodes [22] for instance, or by changing the pressure and temperature of sintering by spark plasma sintering for LSZO electrolyte material [23]. It has been shown that the microstructure of BCZY derivatives can be controlled by varying synthesis routes [24][25][26][27][28][29][30][31], tuning the composition including additional elements [32,33] or adding sintering aids [27,[34][35][36][37][38][39][40], with a balance between grain and grain boundary contributions which have been in some cases separated by using electrochemical impedance spectroscopy (EIS) [15,41].…”

Pengaruh Doping Cu terhadap Karakteristik Material dan Ketahanan Karbon pada Anoda Ni1-X-CuX-BCZY untuk PSOFC

“…Solid Oxide Fuel Cell (SOFC) adalah pembangkit listrik yang sangat potensial dikarenakan memiliki efisiensi yang tinggi, fleksibilitas bahan bakar, penggunaan katalis yang murah, dan emisi pengotor yang rendah, yang mana kategori tersebut sangat penting untuk sistem mesin konversi energi masa depan [1][2]. SOFC konvensional menggunakan prinsip transfer ion oksigen (O 2--SOFC) dan beroperasi pada kisaran temperatur 800-1000 °C.…”