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Characteristics of Ba(Zr0.1Ce0.7Y0.2)O3-δ nano-powders synthesized by different wet-chemical methods for solid oxide fuel cells

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Date
01/2018
Author
Min, Sung Hwan
Lee, Jin Goo
Jeon, Ok Sung
Park, Myeong Geun
Ryu, Kwang Hyun
Myung, Jae-ha
Shul, Yong-Gun
Keywords
Solid oxide fuel cell
BZCY
Functional layer
Nickel penetration
Proton conductor
QD Chemistry
NDAS
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Abstract
Ba(Zr0.1Ce0.7Y0.2)O3-δ nano-particles were prepared by different wet-chemical synthesis, Pechini (BZCY(P)) and co-precipitation (BZCY(C)), respectively. The BZCY(C) powders have a particle size in range of about 50~150 nm, which is smaller than the BZCY(P) powders with about 500~900 nm. Both the BZCY materials show perovskite structures, but there are impurities in the BZCY (P). Moreover, the electrolyte density was higher in the BZCY (C) than the BZCY (P). The single cells with BZCY (C) electrolytes exhibited about 0.23 W cm−2 at 600 °C and about 0.31 W cm−2 at the same temperature were obtained when the anode-functional layer was introduced between the anode and electrolyte. Thus, the BZCY prepared by carbonate-derived co-precipitation method can be more favorable for high-purity and dense electrolytes in the solid oxide fuel cells than the BZCY prepared by Pechini method.
Citation
Min , S H , Lee , J G , Jeon , O S , Park , M G , Ryu , K H , Myung , J & Shul , Y-G 2018 , ' Characteristics of Ba(Zr 0.1 Ce 0.7 Y 0.2 )O 3-δ nano-powders synthesized by different wet-chemical methods for solid oxide fuel cells ' , Ceramics International , vol. 44 , no. 1 , pp. 433-437 . https://doi.org/10.1016/j.ceramint.2017.09.195
Publication
Ceramics International
Status
Peer reviewed
DOI
https://doi.org/10.1016/j.ceramint.2017.09.195
ISSN
0272-8842
Type
Journal article
Rights
© 2017 Elsevier Ltd. This work has been 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://doi.org/10.1016/j.ceramint.2017.09.195
Description
This research was supported by Basic Science Research Program through the National Research Foundation of Korea (NRF) funded by the Ministry of Education (NRF-2017R1A6A3A03004416) and (NRF-2015M1A2A2056833).
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  • University of St Andrews Research
URI
http://hdl.handle.net/10023/16085

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