Performance of solid oxide electrolysis cell having bi-layered electrolyte during steam electrolysis and carbon dioxide electrolysis

Experimental Validation of Two‐Dimensional H2O and CO2 Co‐Electrolysis Modeling

“…In agreement with literature reports [12,14,26], the performances for CO 2 electrolysis are lower than for the reduction of H 2 O (Figures 6 and 7). For instance, at 1.1 V and for similar faradic conversion rate, the calculated ASR values for carbon dioxide electrolysis (0.6-0.7 X cm 2 ) are higher than the ones for steam reduction (0.4-0.5 X cm 2 ).…”

“…seems to be consistent with several studies that have demonstrated the feasibility of the direct electro-reduction of CO 2 in CO at high temperature [12,[15][16][17]. However, according to Zhan et al [18], the co-electrolysis performances would be significantly lower than those obtained with pure steam.…”

“…The Idaho National Laboratory (INL) is also studying the concept of a syngas production plant based on high temperature co-electrolysis coupled with nuclear plant [11]. Various studies show that similar performances can be obtained in steam electrolysis or in co-electrolysis in specific operating conditions [12][13][14]. For instance, Graves et al [14] have reported that initial co-electrolysis performances (Area Specific Resistance (ASR) = 0.…”

Efficient Solar‐Driven Synthesis, Carbon Capture, and Desalinization, STEP: Solar Thermal Electrochemical Production of Fuels, Metals, Bleach

“…High-temperature, solid-oxide electrolysis of carbon dioxide dates back to suggestions from the 1960s to use such cells to renew air for a space habitat, [42][43][44] and the sustainable rate of the solid oxide reduction of carbon dioxide is improving rapidly. [45][46][47][48][49][50][51] Molten-carbonate rather than solid-oxide fuel cells running in the reverse mode had also been studied to renew air in 2002. [ 52 ] In a manner analogous to our 2002 high-temperature solar water-splitting studies (described below), [53][54][55] we showed in 2009 that molten-carbonate cells…”

High‐Solar‐Efficiency Utilization of CO2: the STEP (Solar Thermal Electrochemical Production) of Energetic Molecules

“…These are constrained by the thermodynamic and kinetic challenges associated with ambient temperature, endothermic processes, high electrolysis potential, large overpotential, low rate, and low electrolysis efficiency. High-temperature, solid oxide electrolysis of carbon dioxide dates back to the 1960s, with suggestions to use such cells to renew air for a space habitat [42][43][44], and the sustainable rate of the solid oxide reduction of carbon dioxide is improving rapidly [45][46][47][48][49][50][51]. Molten carbonate, rather than solid oxide, fuel cells running in the reverse mode were also studied to renew air in 2002 [52].…”