Direct-Hydrocarbon Proton-Conducting Solid Oxide Fuel Cells
نویسندگان
چکیده
Solid oxide fuel cells (SOFCs) are promising and rugged solid-state power sources that can directly electrochemically convert the chemical energy into electric power. Direct-hydrocarbon SOFCs eliminate external reformers; thus, system is significantly simplified capital cost reduced. comprise cathode, electrolyte, anode, of which anode paramount importance as its catalytic activity stability key to direct-hydrocarbon SOFCs. The conventional SOFC composed a Ni-based metallic phase conducts electrons, an oxygen-ion conducting oxide, such yttria-stabilized zirconia (YSZ), exhibits ionic conductivity 10?3–10?2 S cm?1 at 700 °C. Although YSZ-based being commercialized, YSZ-Ni anodes still suffering from carbon deposition (coking) sulfur poisoning, ensuing performance degradation. Furthermore, high operating temperatures (>700 °C) also pose challenges compatibility, leading poor long-term durability. To reduce SOFCs, intermediate-temperature proton-conducting (P-SOFCs) developed alternatives, give rise superior densities, coking tolerance, Due these advances, there growing efforts implement oxides improve durability However, so far, no review article focuses on P-SOFCs. This concise aims first introduce fundamentals P-SOFCs unique surface properties oxides, then summarize most up-to-date achievements well current Finally, strategies overcome those suggested advance development
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ژورنال
عنوان ژورنال: Sustainability
سال: 2021
ISSN: ['2071-1050']
DOI: https://doi.org/10.3390/su13094736