Recent worldwide interest in building a decentralized, hydrogen-based energy economy has refocused attention on the solid oxide fuel cell (SOFC) as a potential source of efficient, environmentally friendly, fuel-versatile electric power. Due to its high operating temperature, the SOFC offers several potential advantages over polymer-based fuel cells, including reversible electrode reactions, lo...

in order to enhance the performance of interconnects which are used in solid oxide fuel cells (sofcs), a protective/conductive coating can be applied. in this research aisi 430 ferritic stainless steel was coated in a mn-base pack mixture by pack cementation method. in order to evaluate the oxidation behavior, isothermal oxidation was accomplished for 200 h at 800 ºc. electrical behavior was al...

Solid oxide fuel cells (SOFCs) are electrochemical energy conversion devices with flexibility. Since carbon monoxide (CO) is a major product of SOFC anodes operating hydrocarbon fuels, direct utilization CO as expected for more efficient operation SOFCs. A review on CO-fueled technologies imperative to promote research activities in this important field, but it has not been published. In review...

Reducing the operating temperature in the 500-750 °C range is needed for widespread use of solid oxide fuel cells (SOFCs). Proton-conducting oxides are gaining wide interest as electrolyte materials for this aim. We report the fabrication of BaZr(0.8)Y(0.2)O(3-δ) (BZY) proton-conducting electrolyte thin films by pulsed laser deposition on different single-crystalline substrates. Highly textured...

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 ke...

Solid oxide fuel cells (SOFCs) can be operated in a reversed mode as electrolyzer cells for electrolysis of H2O and CO2. In this paper, a 2D thermal model is developed to study the heat/mass transfer and chemical/electrochemical reactions in a solid oxide electrolyzer cell (SOEC) for H2O/CO2 co-electrolysis. The model is based on 3 sub-models: a computational fluid dynamics (CFD) model describi...

Due to the high energy density, mature production technology, ease of storage and transportation, no carbon/sulfur nature ammonia fuel, direct-ammonia solid oxide fuel cells (DA-SOFCs) have received rapidly increasing attention, showing distinct advantages over H2-fueled SOFCs low-temperature cells. However, DA-SOFCs with conventional Ni-based cermet anodes still suffer from several drawbacks, ...

A solid oxide fuel cell is a high-efficiency power device in hydrogen energy utilization. The durability and dynamic performance of metal-supported cells (MS-SOFCs) are superior to those electrolyte- or electrode-supported cells, with many potential applications. Gadolinium-doped cerium (GDC) has high oxygen ionic conductivity, making it suitable act as the electrolyte MS-SOFCs operating at 500...

Electrochemical impedance spectroscopy (EIS) is commonly used for the characterization of electrochemical systems, such as solid oxide fuel cells (SOFCs). In recent years, distribution relaxation times (DRT) analysis has attracted increasing interest a tool investigating loss mechanisms in due to its ability resolve features that overlap complex planes. Among methods deconvolution function time...

Laser machining of the nickel oxide–yttria-stabilized zirconia (NiO–YSZ) composite in Solid Oxide Fuel Cells (SOFCs) may be an effective approach to enlarge electrode–electrolyte interface and improve cell performance. However, laser energy can cause thermal damage surface during machined operation. In this work, microstructure changes collateral caused by pulsed on sintered NiO–YSZ state-of-th...