In single-chamber solid oxide fuel cells (SC-SOFCs), both anode and cathode are situated in a common gas chamber and are exposed to a mixture of fuel and oxidant. The working principle is based on the difference in catalytic activity of the electrodes for the respective anodic and cathodic reactions. The resulting difference in oxygen partial pressure between the electrodes leads to the generat...

Sr-doped LaMnO3 (LSM) which is the first-generation cathode for solid oxide fuel cells (SOFCs) has been tailored with Zn ions, aiming to achieve improved protonation ability proton-conducting SOFCs (H-SOFCs). The new Sr and co-doped (LSMZ) can be successfully synthesized. first-principle studies indicate that LSMZ improves of LSM decreases barriers oxygen vacancy formation, leading high perform...

Among various types of alternative energy devices, solid oxide fuel cells (SOFCs) operating at low temperatures (300-600°C) show the advantages for both stationary and mobile electricity production. Proton-conducting oxides as electrolyte materials play a critical role in low-temperature SOFCs (LT-SOFCs). This review summarizes progress proton-conducting electrolytes LT-SOFCs from to with empha...

This communication reports on the design, fabrication and testing of special high temperature Si/SiN based micro-hotplates as micromachined platforms for micro-SOFCs. Different designs and materials have been evaluated to realise micro-heating platforms compatible with spray pyrolysed anode, cathode and electrolytes materials. The potential of these micromachined platforms for further integrati...

an analytical model is proposed and an analysis is conducted for solid oxide fuel cells with goals of higher power densities. the analytical model is designed to help optimize the size, spacing, and geome-trical shapes of current collectors. the model fully considers the ohmic, species concentration, and activa-tion polarizations. from the analysis of several cases, it is recommended that 3d pi...

The Ba0.5Sr0.5Co0.8Fe0.2O3−δ (BSCF) + Co3O4 composite material is evaluated as a cathode for proton-conducting solid oxide fuel cells (H-SOFCs), which provides new strategy to solve the thermal mismatch problem between and electrolyte without impairing performance. BSCF well-known intermediate-temperature SOFCs, but its performance H-SOFCs unsatisfactory. One reason relatively low poor contact ...

Solid oxide fuel cells (SOFCs) are promising electrochemical energy conversion devices owing to their high power generation efficiency and environmentally benign operation. Micro-tubular SOFCs, which have diameters ranging from a few millimeters to the sub-millimeter scale, offer several advantages over competing SOFCs such as high volumetric power density, good endurance against thermal cyclin...

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...