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Nickel‐Based Anode with Water Storage Capability to Mitigate Carbon Deposition for Direct Ethanol Solid Oxide Fuel Cells
Author(s) -
Wang Wei,
Su Chao,
Ran Ran,
Zhao Bote,
Shao Zongping,
O. Tade Moses,
Liu Shaomin
Publication year - 2014
Publication title -
chemsuschem
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 2.412
H-Index - 157
eISSN - 1864-564X
pISSN - 1864-5631
DOI - 10.1002/cssc.201301341
Subject(s) - anode , materials science , direct ethanol fuel cell , catalysis , carbon fibers , oxide , chemical engineering , nickel , renewable energy , energy storage , hydrogen , deposition (geology) , waste management , metallurgy , chemistry , electrode , organic chemistry , power (physics) , electrical engineering , composite number , composite material , physics , paleontology , sediment , biology , quantum mechanics , engineering
Abstract 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+BaZr 0.4 Ce 0.4 Y 0.2 O 3 (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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