High steam utilization operation with high current density in solid oxide electrolysis cells
نویسندگان
چکیده
منابع مشابه
Electrolyte Degradation in Anode Supported Microtubular YSZ-based Solid Oxide Steam Electrolysis Cells at high voltages of operation
Degradation of solid oxide electrolysis cells (SOECs) is probably the biggest concern in the field of high temperature steam electrolysis (HTSE). Anode supported, YSZ-based microtubular solid oxide fuel cells (SOFC) have been tested in fuel cell mode and also at high voltages (up to 2.8V) under electrolysis mode. At high steam conversion rates the cell voltage tends to saturate. Our hypothesis ...
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Reversible operation of a microtubular solid oxide fuel cell SOFC with high electrochemical efficiency is reported. These devices can ideally produce hydrogen from electricity and steam solid oxide electrolyser SOE and then use the stored hydrogen to generate electricity and heat SOFC , acting as a storage device for the electrical energy. A fuel-electrode-supported Ni–yttriastabilized zirconia...
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*Correspondence: Victor M. Orera, CSIC-Universidad de Zaragoza, C/Pedro Cerbuna 10, Zaragoza 50009, Spain e-mail: [email protected] Higher energetic density, better resistance to thermal stresses, and smaller starting times as compared with conventional planar stacks, make the so-called microtubular SOFC (mT-SOFCs with diameters in the millimeter size region) devices suitable for portable applica...
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Through the use of ambient pressure X-ray photoelectron spectroscopy (APXPS) and a single-sided solid oxide electrochemical cell (SOC), we have studied the mechanism of electrocatalytic splitting of water (H2O + 2e(-) → H2 + O(2-)) and electro-oxidation of hydrogen (H2 + O(2-) → H2O + 2e(-)) at ∼700 °C in 0.5 Torr of H2/H2O on ceria (CeO2-x) electrodes. The experiments reveal a transient build-...
متن کاملOn Current Density and Excess Power Density in Electrolysis Experiments
Results of a study of an electrolytic device that can produce excess power are presented. The power calibration procedure used for the experiments and the data analysis procedure is briefly described in this paper. Different combinations of cathode and electrolyte were investigated. Thin foils of different pure metals were and thin spattered layers of different pure metals on different substrat...
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ژورنال
عنوان ژورنال: Journal of the Ceramic Society of Japan
سال: 2016
ISSN: 1348-6535,1882-0743
DOI: 10.2109/jcersj2.15274