Pd-YSZ composite cathodes for oxygen reduction reaction of intermediate-temperature solid oxide fuel cells
MetadataShow full item record
mechanicalmixing and infiltration methods. In the case of infiltration, thermal decomposition and chemical reduction processes are used to form Pd particles on the YSZ scaffold. The phase structure, morphology and electrochemical performance of the Pd-YSZ composite cathodes are characterized by X-ray diffraction (XRD), scanning electron microscope (SEM), transmission electron microscope (TEM) and electrochemical impedance spectroscopy (EIS). The performance of mechanically mixed Pd-YSZ composite cathodes is inadequate due to significant growth and sporadical distribution of Pd particles. The 5 wt.% Pd-loaded cathode prepared by infiltration-thermal decomposition process shows the lowest polarization resistance, i.e. between 0.042 U cm2 and 1.5 U cm2 in the temperature range of 850e600 C, benefited from the formation of nano-sized Pd particles and the presence of well connected Pd network. The effect of Pd loading on the performance of the infiltratedthermal decomposed Pd-YSZ composite cathodes is also evaluated, 5 wt.% Pd loading results in the lowest polarization resistances.
Showing items related by title, author, creator and subject.
Liu, Y.; Wang, F.; Chi, B.; Pu, J.; Jian, L.; Jiang, San Ping (2013)The performance degradation of composite cathodes of La0.6Sr0.4Co0.2Fe0.8O3−δ and Gd-doped ceria (LSCF–GDC), prepared by impregnating the porous GDC scaffold with a nitrate solution containing La, Sr, Co and Fe in desired ...
Yang, Guangming; Su, Chao; Ran, Ran; Tade, Moses; Shao, Zongping (2014)Advanced symmetric solid oxide fuel cells (SOFCs) with a reducible electrode were proposed. Specifically, La2NiO4 + La0.9Sr0.1Ga0.8Mg0.2O3-delta (LSGM) [or Sm0.2Ce0.8O1.9 (SDC)] composite electrodes were successfully ...
A La<inf>0.8</inf>Sr<inf>0.2</inf>MnO<inf>3</inf>/La<inf>0.6</inf>Sr<inf>0.4</inf>Co<inf>0.2</inf>Fe<inf>0.8</inf>O<inf>3-d</inf> core–shell structured cathode by a rapid sintering process for solid oxide fuel cellsAi, N.; Chen, K.; Jiang, San Ping (2017)© 2016 Hydrogen Energy Publications LLCA La0.8Sr0.2MnO3 (LSM)/La0.6Sr0.4Co0.2Fe0.8O3-d (LSCF) core–shell structured composite cathode of solid oxide fuel cells (SOFCs) has been fabricated by wet infiltration followed by ...