نتایج جستجو برای: sofcs
تعداد نتایج: 550 فیلتر نتایج به سال:
The commercial breakthrough of solid oxide fuel cells (SOFCs) is still hampered by degradation related issues. Most SOFCs that perform well do not possess good stability. To achieve a targeted rate 0.2%/1000 h important to durable SOFC device, it vital identify the sources degradation. So far, longest stable performance was given F1002-97, short stack from Forschungszentrum Jülich GmbH, which r...
Ammonia is being considered as a promising alternative to hydrogen fuel in solid oxide cells (SOFCs) due its stability and ease of storage transportation. This study investigates the feasibility using ammonia tubular SOFC for shipborne unmanned aerial vehicles (UAVs). The paper develops 3D model tubular-anode-supported single cell conducts numerical simulations analyze impact different operatin...
An increasing demand in the marine industry to reduce emissions led investigations into more efficient power conversion using fuels with sustainable production pathways. Solid Oxide Fuel Cells (SOFCs) are under consideration for long-range shipping, because of its high efficiency, low pollutant emissions, and fuel flexibility. SOFC systems also have great potential cater heat ships, but integra...
Abstract Lanthanum strontium cobalt ferrite (LSCF) is an appreciable cathode material for solid oxide fuel cells (SOFCs), and it has been widely investigated, owing to its excellent thermal chemical stability. However, poor oxygen reduction reaction (ORR) activity, particularly at a temperature of ⩽ 800 °C, causes setbacks in achieving peak power density > 1.0 W·cm −2 , limiting application ...
There is tremendous potential for both small- and large-scale applications of low-temperature operational ceramic fuel cells (LT-CFCs), which operate between 350 °C 550 °C. Unfortunately, the low operating temperature CFCs was hampered by inadequate oxygen reduction electrocatalysts. In this work, electrochemical characteristics a semiconductor heterostructure composite based on WO3-CaFe2O4 dep...
We investigated the influence of a fuel change from pure hydrogen to hydrogen–ammonia mixture at different percentages on electrochemical behavior 50 mm in diameter Solid Oxide Fuel Cells (SOFCs) with sputtered thin buffer layers Gd-doped ceria, varying working temperatures 800 °C 650 °C. The results show that performances cells are not affected by for high (800 and 750 °C). As an example, powe...
Mixed ionic electronic conductors (MIECs) have attracted increasing attention as anode materials for solid oxide fuel cells (SOFCs) and they hold great promise lowering the operation temperature of SOFCs. However, there has been a lack understanding performance-limiting factors guidelines rational design composite metal-MIEC electrodes. Using newly-developed approach based on 3D-tomography elec...
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