Study on paper-structured catalyst for direct internal reforming SOFC fueled by the mixture of CH4 and CO2

Toward highly efficient in situ dry reforming of H2S contaminated methane in solid oxide fuel cells via incorporating a coke/sulfur resistant bimetallic catalyst layer

“…12,[25][26][27] Solid oxide fuel cells (SOFCs), which typically operate at higher temperatures (above 500 C) compared to other types of fuel cells, have received particular attention in recent years not only for power generation [28][29][30] but also for the potential of performing simultaneous DRM reactions in their anode compartments. [31][32][33] A high operation temperature is favored by DRM, and at the same time, the heat released during the electro-oxidation process can partially compensate the energy required for DRM. Nonetheless, the conventional Ni-Y 2 O 3 -stabilized-ZrO 2 (YSZ) electro-catalyst shows neither good in situ dry reforming activity nor an excellent electrochemical performance in a CH 4 -CO 2 mixture, [34][35][36] not to mention that sulfur impurities always signicantly deactivate its reforming capability.…”

Hydrotalcite-dispersed paper-structured catalyst for the dry reforming of methane

“…PSCs were prepared by an established papermaking technique through a dual polyelectrolyte retention system [15,17]. 5 g of ceramic fiber (SiO 2 : 52 wt%, Al 2 O 3 : 48 wt%), Cf, (IBIDEN Ltd., Japan) with 500 mm average length and 2 mm average width was added to ca.…”

“…Recently, PSCs for application in DIR-SOFCs have been developed [17,18]. This PSC, which can be stacked on the anode of the SOFC, exhibits high catalytic activity for the reforming of bio-fuels, such as biogas and biodiesel fuels, at the operating temperature of the SOFC (approximately 1073 K).…”

Thermoelectric characterization of an intermediate temperature solid oxide fuel cell system directly fed by dry biogas

“…In both cases, the associated increase in complexity and costs as well as the risk of damage to the cells can be an obstacle for the wide diffusion of this technology. The chance to overcome this barrier is essentially addressed by the development of a new anodic formulation that, at the same time, should not cause modifications in the well-established SOFC manufacturing process [8,[13][14][15][16][17][18]. It has been observed that the interruption of the Ni-Ni network, which promotes the cracking process and the consequent formation and deposition of carbon fibers and soot, by introduction of a different transition metal and the addition of Ceria and Gadolinium Oxide (CGO), can improve the ionic conduction, oxygen storage and stability of the catalyst [19].…”