Combined methane reforming by carbon dioxide and steam in proton conducting solid oxide fuel cells for syngas/power co-generation

2019 ◽  
Vol 44 (29) ◽  
pp. 15313-15321 ◽  
Author(s):  
Bin Chen ◽  
Haoran Xu ◽  
Yuan Zhang ◽  
Feifei Dong ◽  
Peng Tan ◽  
...  
Keyword(s):  
Carbon Dioxide ◽  
Fuel Cells ◽  
Solid Oxide Fuel Cells ◽  
Solid Oxide ◽  
Methane Reforming ◽  
Oxide Fuel ◽  
Proton Conducting

scholarly journals Direct-Hydrocarbon Proton-Conducting Solid Oxide Fuel Cells

2021 ◽  
Vol 13 (9) ◽  
pp. 4736
Author(s):  
Fan Liu ◽  
Chuancheng Duan
Keyword(s):  
Fuel Cells ◽  
Solid Oxide Fuel Cells ◽  
Solid Oxide ◽  
Sulfur Poisoning ◽  
Oxide Fuel ◽  
Power Sources ◽  
Proton Conducting ◽  
Conducting Oxides ◽  
Operating Temperatures ◽  
Ion Conducting

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

Tailoring electronic structure of perovskite cathode for proton-conducting solid oxide fuel cells with high performance

2021 ◽  
Vol 489 ◽  
pp. 229486
Author(s):  
Xi Xu ◽  
Yangsen Xu ◽  
Jinming Ma ◽  
Yanru Yin ◽  
Marco Fronzi ◽  
...  
Keyword(s):  
Electronic Structure ◽  
Fuel Cells ◽  
Solid Oxide Fuel Cells ◽  
High Performance ◽  
Solid Oxide ◽  
Oxide Fuel ◽  
Proton Conducting

ChemInform Abstract: Materials for Proton Conducting Solid Oxide Fuel Cells (H-SOFCs)

ChemInform ◽  
2012 ◽  
Vol 43 (38) ◽  
pp. no-no ◽  
Author(s):  
V. Thangadurai ◽  
W. H. Kan ◽  
B. Mirfakhraei ◽  
S. S. Bhella ◽  
T. T. Trinh
Keyword(s):  
Fuel Cells ◽  
Solid Oxide Fuel Cells ◽  
Solid Oxide ◽  
Oxide Fuel ◽  
Proton Conducting
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