Nickel-based anode with water storage capability to mediate carbon deposition for direct ethanol solid oxide fuel cells
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The potential to use ethanol as a fuel places solid oxide fuel cells (SOFCs) as a sustainable technology for clean energy delivery because of the renewable features of ethanol versus hydrogen. In this work, we developed a new class of anode catalyst exemplified by Ni+BaZr0.4Ce0.4Y0.2O3 (Ni+BZCY) with a water storage capability to overcome the persistent problem of carbon deposition. Ni+BZCY performed very well in catalytic efficiency, water storage capability and coking resistance tests. A stable and high power output was well maintained with a peak power density of 750 mW cm−2 at 750 °C. The SOFC with the new robust anode performed for seven days without any sign of performance decay, whereas SOFCs with conventional anodes failed in less than 2 h because of significant carbon deposition. Our findings indicate the potential applications of these water storage cermets as catalysts in hydrocarbon reforming and as anodes for SOFCs that operate directly on hydrocarbons.
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Enhanced electrochemical performance, water storage capability and coking resistance of a Ni+BaZr0.1Ce0.7Y0.1Yb0.1O3−δ anode for solid oxide fuel cells operating on ethanolWang, W.; Chen, Y.; Wang, F.; Tade, Moses; Shao, Zongping (2015)To improve the water storage capability, electrochemical activity and coking resistance of the Ni+BaZr0.4Ce0.4Y0.2O3-δ (BZCY4) material, the reduction of Zr amount and partial Yb doping on Y site are investigated in this ...
Enhanced Sulfur Tolerance of Nickel-Based Anodes for Oxygen-Ion Conducting Solid Oxide Fuel Cells by Incorporating a Secondary Water Storing PhaseWang, F.; Wang, W.; Qu, J.; Zhong, Y.; Tade, Moses; Shao, Zongping (2014)In this work, a Ni+BaZr0.4Ce0.4Y0.2O3-δ (Ni+BZCY) anode with high water storage capability is used to increase the sulfur tolerance of nickel electrocatalysts for solid oxide fuel cells (SOFCs) with an oxygen-ion conducting ...
Rational Design of a Water-Storable Hierarchical Architecture Decorated with Amorphous Barium Oxide and Nickel Nanoparticles as a Solid Oxide Fuel Cell Anode with Excellent Sulfur ToleranceSong, Y.; Wang, Wei; Ge, L.; Xu, X.; Zhang, Z.; Julião, P.; Zhou, W.; Shao, Zongping (2017)© 2017 WILEY-VCH Verlag GmbH & Co. KGaA, Weinheim. Solid oxide fuel cells (SOFCs), which can directly convert chemical energy stored in fuels into electric power, represent a useful technology for a more sustainable ...