Fuel Cells, Advanced Reactors and Smart Catalysis: The Exploitation of Ceramic Ion-Conducting Membranes

2003 ◽  
Vol 26 (8) ◽  
pp. 857-862 ◽  
Author(s):  
I.S. Metcalfe
Keyword(s):  
Fuel Cells ◽  
Ion Conducting ◽  
Conducting Membranes

In Situ Studies of Molecular Self-Assembling during the Formation of Ion-Conducting Membranes for Fuel Cells

2015 ◽  
Vol 792 ◽  
pp. 623-628 ◽  
Author(s):  
Kseniia N. Grafskaia ◽  
Denis V. Anokhin ◽  
Jaime J. Hernandez Rueda ◽  
Dmitriy A. Ivanov
Keyword(s):  
Fuel Cells ◽  
High Temperature ◽  
Molecular Architecture ◽  
Self Assembling ◽  
Ion Conducting ◽  
Microscopy Data ◽  
Conducting Membranes ◽  
Green Fuel ◽  
Synchrotron Beamlines

In present work a new setup for in situ studies of molecular self-assembling process for fabrication of ion-conducting membranes for “green” fuel cells was developed. Due to compactness, this unique setup can be used on the synchrotron beamlines. The GISAXS and optical microscopy data have shown the effectiveness of the control of molecular architecture by impact of high temperature, UV-irradiation and solvent vapors.

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.

Sulfonated polynaphthylimides as proton-conducting membranes for fuel cells

2009 ◽  
Vol 78 (1) ◽  
pp. 53-75 ◽  
Author(s):  
Aleksandr L Rusanov ◽  
E G Bulycheva ◽  
M G Bugaenko ◽  
V Yu Voytekunas ◽  
M J Abadie
Keyword(s):  
Fuel Cells ◽  
Proton Conducting ◽  
Conducting Membranes

scholarly journals SDC-Infiltrated Microporous Silver Membrane with Superior Resistance to Thermal Agglomeration for Cathode-Supported Solid Oxide Fuel Cells

Energies ◽  
2018 ◽  
Vol 11 (9) ◽  
pp. 2181 ◽  
Author(s):  
Tsung-Han Lee ◽  
Jong Baek ◽  
Liangdong Fan ◽  
Florencia Wiria ◽  
Pei-Chen Su ◽  
...  
Keyword(s):  
Fuel Cells ◽  
Solid Oxide Fuel Cells ◽  
Precursor Solution ◽  
Solid Oxide ◽  
Pore Surface ◽  
Doped Ceria ◽  
Oxide Fuel ◽  
Microporous Structure ◽  
Ion Conducting ◽  
Porous Silver

This work presents a microporous silver cathode membrane reinforced with infiltration of samarium-doped ceria (SDC). The ion-conducting SDC effectively confines the surface of a porous silver membrane to maintain microporous structure and prevents the electrode agglomeration. SDC precursor solution is fired together with silver membrane at 700 °C for 2 h and formed as a nanocrystalline SDC on the silver pore surface. The SDC-infiltrated microporous silver membrane shows superior resistance to agglomeration without noticeable change in microstructures even at 900 °C for 12 h, which makes it promising for the application of solid oxide fuel cells as a cathode support.

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