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Nano-composite structural Ni-Sn alloy anodes for high performance and durability of direct methane-fueled SOFCs

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204796610_C4TA06037G_Myung.pdf (658.7Kb)
Date
14/07/2015
Author
Myung, Jaeha
Kim, S.-D.
Shin, Tae Ho
Lee, D.
Irvine, John Thomas Sirr
Moon, J.
Hyun, S.-H.
Funder
EPSRC
Grant ID
EP/K021036/1
Keywords
QD Chemistry
NDAS
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Abstract
Ni-based cermets have commonly been used as anode materials with good catalytic properties for hydrocarbon fuels. However, carbon deposition can occur due to the non-ideal electrochemical reaction of hydrocarbon fuel and the structural limitation resulting from the unsymmetrical Ni-based anode-supported single cells. This critical problem leads to loss of cell performance and poor long-term stability of solid oxide fuel cells (SOFCs). Our designed anode material with an extremely small amount (0.5 wt%) of Sn catalyst incorporated into the Ni and nano-composite structure was employed not only to prevent carbon deposition in oxygen deficient areas found for unsymmetrical cells, but also to increase the cell performance due to its excellent microstructure. The nano-composite Sn doped Ni-GDC cells showed a power density of 0.93 W cm-2 with stable operation in dry methane at 650°C.
Citation
Myung , J , Kim , S-D , Shin , T H , Lee , D , Irvine , J T S , Moon , J & Hyun , S-H 2015 , ' Nano-composite structural Ni-Sn alloy anodes for high performance and durability of direct methane-fueled SOFCs ' , Journal of Materials Chemistry A , vol. 3 , no. 26 , pp. 13801-13806 . https://doi.org/10.1039/c4ta06037g
Publication
Journal of Materials Chemistry A
Status
Peer reviewed
DOI
https://doi.org/10.1039/c4ta06037g
ISSN
2050-7488
Type
Journal article
Rights
Copyright 2015 the Authors. This work is made available online in accordance with the publisher’s policies. This is the author created, accepted version manuscript following peer review and may differ slightly from the final published version. The final published version of this work is available at: https://dx.doi.org/10.1039/C4TA06037G
Description
This work was supported by the Seoul R&BD Program (CS070157). It was also partially supported by a National Research Foundation (NRF) of Korea grant funded by the Korean government (MSIP) (no. 2012R1A3A2026417) and the third Stage of Brain Korea 21 Plus Project.
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  • University of St Andrews Research
URL
http://www.rsc.org/suppdata/ta/c4/c4ta06037g/c4ta06037g1.pdf
URI
http://hdl.handle.net/10023/8847

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