Article ID | Journal | Published Year | Pages | File Type |
---|---|---|---|---|
7705504 | International Journal of Hydrogen Energy | 2018 | 8 Pages |
Abstract
Co-doped CeO2 materials have exhibited promising potential for low temperature solid oxide fuel cell (LT-SOFC) applications. Sm3+, Pr3+ and Nd3+ triple-doped ceria has been synthesized via two-step wet chemical approach. First samarium doped ceria (SDC) was prepared and then the Pr3+/Nd3+ ions as doping elements (secondary process) was added. The structural structure was studied by X-ray diffraction (XRD), that indicate Sm3+, Pr3+ and Nd3+ ions are doped into the ceria lattice up to the certain limit (Pr3+/Nd3+ 10 wt%). The impurity peaks are detected as doping contents increased above the certain limit (Pr3+/Nd3+ 20 wt %). In this work, further we investigated the effect increasing Pr3+/Nd3+ doping concentration on the performance of SOFC device. Here, we studied that high-concentration triple-doped ceria samples with mixed electrons/ions conductive property, as the semiconductor-ionic conducting layer, combined with commercial p-type semiconductor Ni0.8Co0.15Al0.05LiO2-δ (NCAL) to fabricate the 'sandwich' configuration for a developing fuel cell technology-electrolyte free fuel cells (EFFCs). This button size fuel cell delivered a maximum power output of 1011 mW cmâ2. The demonstrated findings show that the single-phase semiconductor-ionic material-Sm3+/Pr3+/Nd3+ triple-doped CeO2 can be selected potential candidate for the further development the EFFC technology.
Keywords
Related Topics
Physical Sciences and Engineering
Chemistry
Electrochemistry
Authors
Yanyan Liu, Mahr Naveed Mushtaq, Wei Zhang, Aijun Teng, Xueqi Liu,