Solid oxide fuel cells fueled by simulated biogas: Comparison of anode modification by infiltration and reforming catalytic layer

Mathematical modeling of a solid oxide fuel cell operating on biogas

“…In this work, an isobaric combustion process was considered, where the enthalpy of the products is equal to the enthalpy of the reactants. The chemical reactions in the combustion chamber are shown in (19) to (21).…”

“…The overall reaction is shown in (6). In (4) to (6) can take place outside the fuel cell in a special reformer or inside the fuel cell, since the temperature required for the chemical reaction corresponds to the operating temperature of the fuel cell [14]- [19].…”

Achieving performance and longevity with butane-operated low-temperature solid oxide fuel cells using low-cost Cu and CeO2 catalysts

“…SOFCs could play a crucial role in accelerating the transition from an economy based on fossil fuels to one based on renewable fuels. [1][2][3][4][5][6] Despite their potential, the high operating temperatures (>800 C) required pose a serious challenge, leading to issues such as fast cell degradation, the need for expensive construction materials, and slow startup-shutdown cycles. In particular, the latter impedes the application of SOFCs for small-scale and portable applications.…”

“…49 The inltration of the anode layer of a SOFC with CeO 2 can assist the conversion of hydrocarbon fuels, thereby improving the performance of the fuel cell. 4,50 In addition, CeO 2 is also used in direct hydrocarbon fuel cells owing to its resistance to carbon deposition. 51,52 The insertion of CeO 2 into the anode layer has been effective in improving the electrocatalytic activity over both hydrogen and hydrocarbon fuels via expanding the triple phase boundary, leading to enhanced electrochemical reaction performance.…”

Catalysts Based on Strontium Titanate Doped with Ni/Co/Cu for Dry Reforming of Methane

“…The replacement of nickel by other non-noble elements creates an opportunity to obtain a relatively cheap and highly active catalyst for the DRM process. Recent attempts to obtain anodic material for biogas-fuelled SOFC devices involve the modification of common Ni/YSZ cermet by infiltration of gadolinium doped ceria [ 7 ] copper and cobalt co-doped ceria [ 8 ] or even iridium doped ceria [ 9 ]. Exploiting the potential of doped perovskites, due to their chemical stability and good electrochemical properties, is another direction in the search for alternative materials for SOFC anodes.…”