Intermediate-temperature solid oxide fuel cell fueled by biofuels

In situ synthesis of methane using Ag–GDC composite electrodes in a tubular solid oxide electrolytic cell: new insight into the role of oxide ion removal

“…This is consistent with previous reports conrming the anti-coking properties of ceria. 16,21,22,[31][32][33] One of the key ndings of this research is the in situ generation of methane between 500 and 700 C under an H 2 /CO 2 (4 : 1) environment (Table 2) in the absence of any specic methanation catalyst, such as Ni or Fe. Also, according to the literature, Ag has absolutely no catalytic activity towards either CO 2 or CO methanation although it catalyses CO 2 and CO hydrogenation to methanol to a limited extent.…”

A Review on Synthesis of Methane as a Pathway for Renewable Energy Storage With a Focus on Solid Oxide Electrolytic Cell-Based Processes

“…Doped ceria-based fluorite oxides and related composite cathodes have been gaining popularity over the last few years. It is generally accepted that Ceria (CeO 2 ), and in particular aliovalent metal (gadolinium, samarium, or praseodymium)doped ceria such as gadolinia-doped ceria (GDC) or samariadoped ceria, is immune to coking due to the presence of highly mobile surface oxygen species that react with any deposited carbon and suppress coke build-up through gasification (Livermore et al, 2000;Goodenough and Huang, 2007;Cimenti and Hill, 2010;Lee et al, 2016;Elleuch and Halouani, 2020). The presence of such mobile oxygen species is the synergistic effect of oxygen vacancies imparted by the dopant and the in situ reduction of Ce 4+ to Ce 3+ at HTs and in a reducing atmosphere.…”

Enhancing proton mobility and thermal stability in phosphate glasses with WO3: the mixed glass former effect in proton conducting glasses

“…This versatility makes ITFCs highly advantageous, as they can significantly reduce CO 2 emissions. [3][4][5][6] The lack of a solid electrolyte that works effectively at intermediate temperatures is currently the biggest barrier to the development of ITFCs. Various solid electrolyte materials have been proposed so far.…”