BaZr0.1Ce0.7Y0.1Yb0.1O3-[delta] as highly active and carbon tolerant anode for direct hydrocarbon solid oxide fuel cells
MetadataShow full item record
BaZr0.1Ce0.7Y0.1Yb0.1O3d (BZCYYb) perovskite is synthesized and examined as an alternativeanode material for intermediate temperature solid oxide fuel cells (IT-SOFCs) based ondirect hydrocarbon fuels, using polarization and electrochemical impedance spectroscopytechniques. Single-phased BZCYYb anode shows an excellent activity for both hydrogenand methane oxidation reactions, achieving a polarization resistance of 0.25 and0.93 U cm2, and overpotential of 20 and 202 mV at 100 mA cm2 and 750 C in wet H2 (3%H2O/97% H2) and wet CH4 (3% H2O/97% CH4), respectively. The electrocatalytic activity ofBZCYYb anodes is significantly higher than that of the (La,Sr)(Cr,Mn)O3 anodes as reportedin the literature. Furthermore, BZCYYb exhibits excellent resistance to carbon deposition.The present study demonstrates that BZCYYb perovskite is a promising alternative anodematerial for direct hydrocarbon fuels based SOFCs.
Showing items related by title, author, creator and subject.
Stable direct-methane solid oxide fuel cells with calcium-oxide-modified nickel-based anodes operating at reduced temperaturesQu, J.; Wang, W.; Chen, Y.; Deng, X.; Shao, Zongping (2016)In this study, some basic oxide additives are introduced into the conventional Ni–Ce0.8Sm0.2O1.9 (SDC) cermet anodes of solid oxide fuel cells (SOFCs) for using methane as the fuel. The effects of incorporating basic ...
Core–shell structured Li0.33La0.56TiO3 perovskite as a highly efficient and sulfur-tolerant anode for solid-oxide fuel cellsWang, Wei; Qu, J.; Zhao, B.; Yang, G.; Shao, Zongping (2015)Solid oxide fuel cells (SOFCs), which directly convert chemical energy into electricity, have several advantages, such as fuel flexibility and low emissions. Unfortunately, the performance and stability of SOFCs with ...
Aluminum oxide as a dual-functional modifier of Ni-based anodes of solid oxide fuel cells for operation on simulated biogasWang, F.; Wang, Wei; Ran, R.; Tade, Moses; Shao, Zongping (2014)Al2O3 and SnO2 additives are introduced into the Ni–YSZ cermet anode of solid oxide fuel cells (SOFCs) for operation on simulated biogas. The effects of incorporating Al2O3/SnO2 on the electrical conductivity, morphology, ...