Coelectrolysis of steam and CO2 in a solid oxide electrolysis cell with ceramic composite electrodes

Electrochemical reduction of CO 2 in solid oxide electrolysis cells

“…MIECs perovskite-type oxides, whose structures are shown in Fig. 3 , have been proven to be the most promising re- placement to the conventional Ni/YSZ cermet in SOECs [48][49][50] . They demonstrate good coking resistance, high sulfur tolerance, high redox stability and acceptable catalytic activity.…”

Co-electrolysis of steam and CO2 in full-ceramic symmetrical SOECs: a strategy for avoiding the use of hydrogen as a safe gas

“…By introducing CO 2 and H 2 O as a fuel, SOECs are able to generate CO and H 2 , i.e. Isenberg [5] , one of the first major descriptions of co-electrolysis using SOECs were published by Stoots et al in 2008 [6] and have been followed by an increase on the research activity during the last years [3,[6][7][8][9][10][11][12][13][14][15][16][17] . The fabrication of syngas is considered the first step for the production of synthetic hydrocarbons since it is the precursor of high added value hydrocarbons through wellknown Fischer-Tröpsch catalytic routes [3] .…”

Electrochemical performance of H2O–CO2 coelectrolysis with a tubular solid oxide coelectrolysis (SOC) cell

“…In addition, as renewable energy technologies have been established in the market, it is necessary to develop methodologies to alleviate power fluctuation issues and to match supply and demand. This requires the development of large-scale energy storage systems that are cost-effective, energy-efficient, and readily deployable in many situations and regions [2]. In this regard, H 2 OeCO 2 coelectrolysis is among the best types of technology to store electrical energy in the form of chemical energy, as the energy density of this form is higher than any other form of energy and is readily available for power production.…”

“…At high temperatures it is a kinetically fast, equilibrium reaction. Notably, it has been reported that the highest CO 2 -to-CO conversion under H 2 OeCO 2 coelectrolysis conditions could be realized through the RWGS reaction rather than the electrochemical CO 2 -reduction reaction (2). For the production of syngas with a typical H 2 to CO ratio of 2, the total reaction can be written as follows:…”

“…performance compared to hightemperature H2 O electrolysisThe electrochemical performance of the high-temperature H 2 O electrolysis and H 2 OeCO 2 coelectrolysis process was measured by recording IeV curves at 800 C using the tubular SOC cell, as shown inFig. 5.…”