Investigation of direct carbon conversion at the surface of a YSZ electrolyte in a SOFC

Fundamentals of electro- and thermochemistry in the anode of solid-oxide fuel cells with hydrocarbon and syngas fuels

“…[106][107][108][109]. While the literature on electrochemical oxidation of carbon in molten-salt systems is vast, it is beyond the scope of this paper.…”

Direct utilization of lignite coal in a Co–CeO 2 /YSZ/Ag solid oxide fuel cell

“…The operating principle of DCFCs based on SOFC configuration is the electrochemical oxidation of carbon by oxygen anions (O 2À ) transported from the air-exposed cathode through the solid electrolyte to the anode electrode, producing CO 2 (reaction (1)) and CO (reaction (2)). Secondary reactions can also take place on the DCFC anode, including the nonelectrochemical Boudouard reaction [10] (reaction (3)) and the electrochemical oxidation of in situ produced CO to CO 2 (reaction (4)).…”

“…Reactions (1) and (2) are notably hindered by the limited solid carbon/solid electrolyteeelectrode interface interactions. However, carbon delivery to the anode active electrochemical zone can be significantly improved by the high carbon fluidity provided by the infusion of a molten carbonate eutectic mixture into the carbon feedstock.…”

Electrochemical oxidation of catalytic grown carbon fiber in a direct carbon fuel cell using Ce0.8Sm0.2O1.9-carbonate electrolyte

“…Liu et al [21] and Tang and Liu [22] measured the performance of the carbon fuels in a tubular solid oxide fuel cell (SOFC). Desclaux et al [23] made a DCFC based on an SOFC configuration, and carried out a test over 12 h with a carbon pellet layer. The challenge of DCFC with solid oxide electrolyte is the insufficient contact between the anode and the carbon fuel.…”